/* ═══════════════════════════════════════════
   NIHONGO LEARN — Design System
   ═══════════════════════════════════════════ */

@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Nunito:wght@400;600;700;800;900&family=DM+Mono:wght@400;500&display=swap");

/* ── Tokens ── */
:root {
  --bg: #f0f9ff;
  --surface: #ffffff;
  --surface2: #f5faff;
  --border: #ddeeff;
  --text: #1a2c44;
  --text2: #6b85a3;
  --text3: #a8bdd4;
  --sky: #38bdf8;
  --sky-s: #e0f5ff;
  --sky-d: #0284c7;
  --mint: #10b981;
  --mint-s: #d1fae5;
  --lav: #818cf8;
  --lav-s: #eef0ff;
  --coral: #fb7185;
  --coral-s: #ffe4e6;
  --amber: #f59e0b;
  --amber-s: #fef3c7;
  --purple: #a855f7;
  --purple-s: #f3e8ff;
  --font-ui: "Nunito", sans-serif;
  --font-jp: "Noto Sans JP", sans-serif;
  --font-mono: "DM Mono", monospace;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 32px;
  --sh-sm: 0 2px 8px rgba(30, 60, 100, 0.06);
  --sh-md: 0 4px 18px rgba(30, 60, 100, 0.09);
  --sh-lg: 0 8px 32px rgba(30, 60, 100, 0.13);
  --t-fast: 120ms ease;
  --t-base: 200ms ease;
  --t-slow: 350ms ease;
}

/* ── Reset ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: var(--font-ui);
  cursor: pointer;
}
img,
svg {
  display: block;
  max-width: 100%;
}

/* ── Utilities ── */
.jp {
  font-family: var(--font-jp);
}
.mono {
  font-family: var(--font-mono);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* ── Layout ── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.page {
  padding: var(--space-xl) 0;
}
@media (max-width: 600px) {
  .page {
    padding: var(--space-md) 0;
  }
}

/* ═══ HEADER & NAV ═══ */
.app-header {
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  padding: 0 var(--space-lg);
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: var(--sh-sm);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--sky), var(--lav));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-jp);
  font-size: 19px;
  color: #fff;
  box-shadow: 0 3px 10px rgba(56, 189, 248, 0.35);
  flex-shrink: 0;
}
.logo-name {
  font-size: 19px;
  font-weight: 900;
  color: var(--text);
}
.logo-name span {
  color: var(--sky);
}
.header-right,
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.audio-widget {
  display: flex;
  align-items: center;
  gap: 6px;
}
.audio-icon {
  font-size: 16px;
  pointer-events: none;
  user-select: none;
  line-height: 1;
}
.audio-toggle {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--t-fast);
  padding: 0;
}
.audio-toggle:hover {
  transform: scale(1.2);
}
.audio-toggle.on {
  background: var(--mint);
  box-shadow: 0 0 0 3px var(--mint-s);
}
.audio-toggle.off {
  background: var(--coral);
  box-shadow: 0 0 0 3px var(--coral-s);
}
.user-wrap {
  position: relative;
}
.user-btn {
  background: none;
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
}
.user-btn:hover {
  border-color: var(--sky);
}
.user-avatar {
  font-size: 13px;
  font-weight: 800;
  color: var(--sky);
  line-height: 1;
  user-select: none;
}
.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  min-width: 220px;
  box-shadow: var(--sh-lg);
  z-index: 600;
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.user-menu.visible {
  display: flex;
}
.user-menu-name {
  padding: 12px 14px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
  word-break: break-all;
}
.user-menu-item {
  padding: 12px 14px;
  background: none;
  border: none;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: background var(--t-fast);
}
.user-menu-item:hover {
  background: var(--coral-s);
  color: var(--coral);
}

.app-nav {
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  padding: 0 var(--space-lg);
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  position: sticky;
  top: 62px;
  z-index: 100;
}
.app-nav::-webkit-scrollbar {
  display: none;
}
.nav-btn {
  padding: 14px 16px;
  border: none;
  background: none;
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  border-bottom: 3px solid transparent;
  transition: all var(--t-base);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.02em;
}
.nav-btn:hover {
  color: var(--text);
}
.nav-btn.active {
  color: var(--sky);
  border-bottom-color: var(--sky);
}
.nav-btn .nav-jp {
  font-family: var(--font-jp);
  font-size: 15px;
}
.srs-badge {
  background: var(--coral);
  color: #fff;
  font-size: 9px;
  font-weight: 900;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  margin-left: 2px;
}

/* ═══ SECTIONS ═══ */
.section {
  display: none;
}
.section.active {
  display: block;
}
.sec-header {
  margin-bottom: var(--space-lg);
}
.sec-title {
  font-size: 22px;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.sec-desc {
  font-size: 12px;
  color: var(--text2);
  font-weight: 600;
  line-height: 1.8;
}
.sec-divider {
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text3);
  margin: var(--space-xl) 0 var(--space-md);
  display: flex;
  align-items: center;
  gap: 12px;
}
.sec-divider::after {
  content: "";
  flex: 1;
  height: 1.5px;
  background: var(--border);
}

/* ═══ CHIPS & BUTTONS ═══ */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.chip-sky {
  background: var(--sky-s);
  color: var(--sky-d);
}
.chip-lav {
  background: var(--lav-s);
  color: #4338ca;
}
.chip-mint {
  background: var(--mint-s);
  color: #065f46;
}
.chip-coral {
  background: var(--coral-s);
  color: #be123c;
}
.chip-purple {
  background: var(--purple-s);
  color: #7e22ce;
}
.btn {
  padding: 10px 20px;
  border-radius: var(--r-sm);
  border: 2px solid var(--border);
  background: var(--surface);
  font-size: 12px;
  font-weight: 800;
  color: var(--text2);
  transition: all var(--t-fast);
}
.btn:hover {
  border-color: var(--sky);
  color: var(--sky);
}
.btn-primary {
  background: linear-gradient(135deg, var(--sky), var(--lav));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3);
}
.btn-primary:hover {
  opacity: 0.9;
  color: #fff;
  transform: translateY(-1px);
}
.btn-mint {
  background: linear-gradient(135deg, var(--mint), #059669);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}
.btn-mint:hover {
  opacity: 0.9;
  color: #fff;
}
.filter-row {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}
.filter-btn {
  padding: 6px 14px;
  border-radius: 20px;
  border: 2px solid var(--border);
  background: var(--surface);
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  transition: all var(--t-fast);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--sky);
  color: #fff;
  border-color: var(--sky);
}

/* ═══ HOME ═══ */
.home-hero {
  text-align: center;
  padding: 0px 0;
}
.home-hero .hero-jp {
  font-family: var(--font-jp);
  font-size: clamp(64px, 12vw, 96px);
  line-height: 1;
  color: var(--sky);
  margin-bottom: 8px;
  filter: drop-shadow(0 4px 18px rgba(56, 189, 248, 0.22));
}
.home-hero h1 {
  font-size: 26px;
  font-weight: 900;
  margin-bottom: 6px;
}
.home-hero p {
  font-size: 13px;
  color: var(--text2);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.9;
  font-weight: 600;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 2px solid var(--border);
  padding: 22px 16px;
  text-align: center;
  box-shadow: var(--sh-sm);
}
.stat-num {
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
}
.stat-lbl {
  font-size: 10px;
  font-weight: 900;
  color: var(--text2);
  margin-top: 5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.stat-card:nth-child(1) .stat-num {
  color: var(--sky);
}
.stat-card:nth-child(2) .stat-num {
  color: var(--lav);
}
.path-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}
.path-card {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 2px solid var(--border);
  padding: 24px 18px;
  cursor: pointer;
  transition: all var(--t-base);
  box-shadow: var(--sh-sm);
}
.path-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--sh-lg);
}
.path-card-icon {
  font-family: var(--font-jp);
  font-size: 40px;
  margin-bottom: 10px;
  line-height: 1;
}
.path-card-title {
  font-size: 15px;
  font-weight: 900;
  margin-bottom: 5px;
}
.path-card-desc {
  font-size: 11px;
  color: var(--text2);
  font-weight: 600;
  line-height: 1.7;
}
.path-card.c1 {
  border-top: 4px solid var(--sky);
}
.path-card.c2 {
  border-top: 4px solid var(--lav);
}
.path-card.c3 {
  border-top: 4px solid var(--coral);
}
.path-card.c4 {
  border-top: 4px solid var(--purple);
}

/* PWA install card */
.pwa-install-card {
  margin-top: 24px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--sh-sm);
}
.pwa-install-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}
.pwa-install-title {
  font-size: 17px;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 6px;
}
.pwa-install-desc {
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 20px;
}
.pwa-install-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 20px;
}
.pwa-tab {
  padding: 8px 20px;
  border-radius: var(--r-sm);
  border: 2px solid var(--border);
  background: var(--surface);
  font-size: 13px;
  font-weight: 800;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--font-ui);
}
.pwa-tab.active {
  border-color: var(--sky);
  background: var(--sky-s);
  color: var(--sky);
}
.pwa-install-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
}
.pwa-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
  line-height: 1.5;
}
.pwa-step-num {
  min-width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--sky);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ═══ KANA GRID & MODAL ═══ */
.kana-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: var(--space-xl);
}
.kana-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px 8px;
  text-align: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: all var(--t-base);
  position: relative;
  box-shadow: var(--sh-sm);
  user-select: none;
}
.kana-card:hover {
  transform: translateY(-2px) scale(1.03);
  border-color: var(--sky);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.18);
}
.kana-card.learned {
  background: var(--mint-s);
  border-color: var(--mint);
}
.kana-card.learned::after {
  content: "✓";
  position: absolute;
  top: 4px;
  right: 7px;
  font-size: 9px;
  color: var(--mint);
  font-weight: 900;
}
.kana-card .kana-char {
  font-family: var(--font-jp);
  font-size: 28px;
  line-height: 1.2;
  display: block;
  margin-bottom: 4px;
}
.kana-card .kana-romaji {
  font-size: 9px;
  color: var(--text2);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 44, 68, 0.55);
  backdrop-filter: blur(8px);
  z-index: 500;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 12px;
  overflow-y: auto;
}
.modal-overlay.open {
  display: flex;
}
.modal {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 2px solid var(--border);
  padding: 48px 36px 36px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  position: relative;
  box-shadow: var(--sh-lg);
  animation: modal-in var(--t-slow) cubic-bezier(0.34, 1.56, 0.64, 1);
  margin: auto;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.modal:has(.kanji-detail) {
  max-width: 560px;
  text-align: left;
}
@keyframes modal-in {
  from {
    opacity: 0;
    transform: scale(0.88) translateY(16px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text2);
  cursor: pointer;
  z-index: 10;
  transition: all var(--t-fast);
}
.modal-close:hover {
  background: var(--coral-s);
  color: var(--coral);
  border-color: var(--coral);
}
.modal-kana {
  font-family: var(--font-jp);
  font-size: 96px;
  line-height: 1;
  margin-bottom: 8px;
  cursor: pointer;
  transition: transform var(--t-fast);
}
.modal-kana:hover {
  transform: scale(1.06);
}
.modal-romaji {
  font-size: 28px;
  font-weight: 900;
  color: var(--sky);
  margin-bottom: 6px;
}
.modal-example {
  font-size: 12px;
  color: var(--text2);
  line-height: 2;
  font-weight: 600;
  min-height: 40px;
  margin-bottom: 16px;
}
.modal-example .jp-ex {
  font-family: var(--font-jp);
  font-size: 18px;
  color: var(--text);
  display: block;
}
.modal-audio-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px;
  border: 2px solid var(--sky);
  border-radius: var(--r-sm);
  background: var(--sky-s);
  font-size: 12px;
  font-weight: 800;
  color: var(--sky);
  transition: all var(--t-fast);
  margin-bottom: 12px;
}
.modal-audio-btn:hover,
.modal-audio-btn.playing {
  background: var(--sky);
  color: #fff;
}
.modal-audio-btn.playing {
  animation: pulse 0.7s infinite alternate;
}
@keyframes pulse {
  from {
    opacity: 0.75;
  }
  to {
    opacity: 1;
  }
}
.modal-actions {
  display: flex;
  gap: 10px;
}
.modal-actions .btn {
  flex: 1;
}
#modal-learn-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
  background: var(--border);
  box-shadow: none;
}
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--text);
  color: #fff;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 800;
  z-index: 600;
  opacity: 0;
  pointer-events: none;
  transition: all var(--t-base);
  white-space: nowrap;
  box-shadow: var(--sh-md);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ═══ DRAWING ═══ */
.canvas-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 280px;
  margin: 0 auto 12px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 2px solid var(--border);
  background: var(--surface2);
  box-shadow: var(--sh-sm);
  cursor: crosshair;
  touch-action: none;
}
.canvas-layer {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
}
.canvas-grid-layer {
  z-index: 1;
}
.canvas-guide-layer {
  z-index: 2;
  opacity: 0.35;
}
.canvas-ref-layer {
  z-index: 3;
  opacity: 0.22;
}
.canvas-draw-layer {
  z-index: 4;
}
.drawing-controls {
  display: flex;
  gap: 8px;
}
.drawing-btn {
  flex: 1;
  padding: 10px;
  font-size: 11px;
}
.drawing-section-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  border-top: 2px solid var(--border);
  padding: 14px 0 0;
  margin-top: 16px;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  text-align: left;
  transition: color var(--t-fast);
}
.drawing-section-toggle:hover {
  color: var(--sky);
}
.drawing-section-toggle .toggle-arrow {
  font-size: 10px;
  transition: transform var(--t-base);
}
.drawing-section-toggle.open .toggle-arrow {
  transform: rotate(180deg);
}
.drawing-section-body {
  display: none;
  flex-direction: column;
  gap: 10px;
  padding-top: 12px;
}
.drawing-section-body.open {
  display: flex;
}
.validator-status {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin: 8px 0;
  min-height: 24px;
}
.vs-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  font-weight: 900;
}
.vs-dot.ok {
  background: var(--mint-s);
  color: var(--mint);
  border: 1.5px solid var(--mint);
}
.vs-dot.err {
  background: var(--coral-s);
  color: var(--coral);
  border: 1.5px solid var(--coral);
}
.vs-dot.pending {
  background: var(--surface2);
  color: var(--text3);
  border: 1.5px solid var(--border);
}
.vs-score {
  font-size: 11px;
  font-weight: 800;
  color: var(--mint);
  margin-left: 4px;
}
.vs-info {
  font-size: 11px;
  font-weight: 700;
  color: var(--text2);
  margin-left: 4px;
}

/* ═══ SRS ═══ */
.srs-session {
  max-width: 520px;
  margin: 0 auto;
}
.srs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
}
.srs-progress-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
}
.srs-progress-bar {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.srs-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--sky), var(--lav));
  border-radius: 4px;
  transition: width 0.4s ease;
}
.srs-progress-label {
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  white-space: nowrap;
}
.srs-score {
  display: flex;
  gap: 12px;
}
.srs-score-ok {
  font-size: 12px;
  font-weight: 900;
  color: var(--mint);
}
.srs-score-bad {
  font-size: 12px;
  font-weight: 900;
  color: var(--coral);
}
.srs-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--sh-md);
  position: relative;
  overflow: hidden;
}
.srs-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.srs-chip {
  font-size: 11px !important;
  padding: 5px 14px !important;
}
.srs-mode-badge {
  font-size: 10px;
  font-weight: 800;
  color: var(--text2);
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 3px 10px;
  margin-left: auto;
}
.srs-card-label {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 20px;
}
.srs-kana {
  font-size: 88px;
  line-height: 1;
  color: var(--text);
  margin-bottom: 8px;
}
.srs-audio-btn {
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--surface2);
  padding: 6px 16px;
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  margin-bottom: 24px;
  transition: all var(--t-fast);
  cursor: pointer;
  font-family: var(--font-ui);
}
.srs-audio-btn:hover {
  border-color: var(--sky);
  color: var(--sky);
}
.srs-audio-btn.playing {
  background: var(--sky-s);
  border-color: var(--sky);
  color: var(--sky);
}
.srs-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}
.srs-opt {
  padding: 14px;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--font-ui);
  color: var(--text);
}
.srs-opt:hover:not(:disabled) {
  border-color: var(--lav);
  background: var(--lav-s);
  color: var(--lav);
  transform: scale(1.02);
}
.srs-opt.correct {
  background: var(--mint-s);
  border-color: var(--mint);
  color: #065f46;
}
.srs-opt.wrong {
  background: var(--coral-s);
  border-color: var(--coral);
  color: #be123c;
}
.srs-opt:disabled {
  cursor: default;
}
.srs-feedback {
  font-size: 13px;
  font-weight: 800;
  padding: 10px;
  text-align: center;
  border-radius: var(--r-sm);
  margin-bottom: 12px;
}
.srs-feedback.ok {
  background: var(--mint-s);
  color: #065f46;
}
.srs-feedback.fail {
  background: var(--coral-s);
  color: #be123c;
}
.srs-next {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--sky), var(--lav));
  color: #fff;
  border: none;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3);
  transition: all var(--t-fast);
}
.srs-next:hover {
  opacity: 0.9;
}
.srs-canvas-wrap {
  max-width: 260px;
  margin: 12px auto;
}
.srs-canvas-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}
.srs-canvas-actions .btn {
  flex: 1;
}
.srs-empty {
  text-align: center;
  padding: 60px 20px;
}
.srs-empty-icon {
  font-size: 56px;
  margin-bottom: 14px;
}
.srs-empty-title {
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 8px;
}
.srs-empty-sub {
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
  line-height: 1.8;
}
.srs-result {
  text-align: center;
  padding: 20px;
}
.srs-result-pct {
  font-size: 64px;
  font-weight: 900;
  color: var(--sky);
  line-height: 1;
}
.srs-result-msg {
  font-size: 22px;
  font-weight: 900;
  margin: 10px 0 6px;
}
.srs-result-detail {
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
}
#srs-debug {
  position: fixed;
  bottom: 16px;
  right: 16px;
  width: 520px;
  background: var(--surface);
  border: 2px solid var(--lav);
  border-radius: var(--r-md);
  box-shadow: var(--sh-lg);
  z-index: 900;
  font-size: 11px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 70vh;
}
.dbg-header {
  background: var(--lav);
  color: #fff;
  padding: 8px 14px;
  font-weight: 900;
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.dbg-close {
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}
.dbg-controls {
  padding: 10px 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}
.dbg-btn {
  padding: 5px 12px;
  border-radius: 20px;
  border: 2px solid var(--lav);
  background: var(--lav-s);
  color: #4338ca;
  font-size: 10px;
  font-weight: 800;
  cursor: pointer;
  font-family: var(--font-ui);
  transition: all var(--t-fast);
}
.dbg-btn:hover {
  background: var(--lav);
  color: #fff;
}
.dbg-reset {
  border-color: var(--coral);
  background: var(--coral-s);
  color: #be123c;
}
.dbg-reset:hover {
  background: var(--coral);
  color: #fff;
}
.dbg-offset {
  padding: 6px 14px;
  font-size: 10px;
  font-weight: 800;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
}
.dbg-table-wrap {
  overflow-y: auto;
  flex: 1;
  padding: 0 14px 12px;
}
.dbg-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
  margin-top: 8px;
}
.dbg-table th {
  background: var(--surface2);
  padding: 6px 8px;
  text-align: left;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text2);
  position: sticky;
  top: 0;
}
.dbg-table td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--border);
}
.dbg-kana {
  font-family: var(--font-jp);
  font-size: 16px;
}
.dbg-due td {
  background: rgba(251, 113, 133, 0.08);
  font-weight: 700;
}
.dbg-empty {
  padding: 20px;
  text-align: center;
  color: var(--text2);
  font-weight: 600;
}
@media (max-width: 600px) {
  #srs-debug {
    width: calc(100vw - 24px);
    right: 12px;
  }
}

/* ═══ VOCABOLARIO ═══ */
.vocab-ui {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.vocab-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.vocab-search-icon {
  position: absolute;
  left: 14px;
  font-size: 15px;
  pointer-events: none;
}
.vocab-search-input {
  width: 100%;
  padding: 13px 44px 13px 42px;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border var(--t-fast);
}
.vocab-search-input:focus {
  border-color: var(--sky);
}
.vocab-clear-btn {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  font-size: 14px;
  color: var(--text2);
  cursor: pointer;
}
.vocab-filter-jlpt {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}
.vocab-filter-jlpt button {
  padding: 5px 14px;
  border-radius: 20px;
  border: 2px solid var(--border);
  background: var(--surface);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--font-ui);
}
.vocab-filter-jlpt button[data-jlpt="all"].active,
.vocab-filter-jlpt button[data-jlpt="all"]:hover {
  background: var(--sky-s);
  color: var(--sky-d);
  border-color: var(--sky);
}
.vocab-filter-jlpt button[data-jlpt="N5"].active,
.vocab-filter-jlpt button[data-jlpt="N5"]:hover {
  background: var(--mint-s);
  color: #065f46;
  border-color: var(--mint);
}
.vocab-filter-jlpt button[data-jlpt="N4"].active,
.vocab-filter-jlpt button[data-jlpt="N4"]:hover {
  background: var(--sky-s);
  color: var(--sky-d);
  border-color: var(--sky);
}
.vocab-filter-jlpt button[data-jlpt="N3"].active,
.vocab-filter-jlpt button[data-jlpt="N3"]:hover {
  background: var(--lav-s);
  color: #4338ca;
  border-color: var(--lav);
}
.vocab-filter-jlpt button[data-jlpt="N2"].active,
.vocab-filter-jlpt button[data-jlpt="N2"]:hover {
  background: var(--amber-s);
  color: #92400e;
  border-color: #f59e0b;
}
.vocab-filter-jlpt button[data-jlpt="N1"].active,
.vocab-filter-jlpt button[data-jlpt="N1"]:hover {
  background: var(--coral-s);
  color: #be123c;
  border-color: var(--coral);
}
.vocab-status {
  font-size: 12px;
  font-weight: 700;
  min-height: 18px;
}
.vocab-status.searching {
  color: var(--sky);
}
.vocab-count {
  font-size: 11px;
  color: var(--text2);
  font-weight: 700;
}
.vocab-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.vocab-row {
  display: grid;
  grid-template-columns: 48px 160px 1fr 60px;
  align-items: center;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  min-height: 68px;
  transition: all var(--t-fast);
  box-shadow: var(--sh-sm);
  overflow: hidden;
}
.vocab-row:hover {
  background: var(--sky-s);
  border-color: var(--sky);
}
.vocab-row > * {
  padding: 10px 14px;
  border-right: 1px solid var(--border);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.vocab-row > *:last-child {
  border-right: none;
}
.vc-emoji {
  padding: 0 !important;
  width: 48px;
  height: 100%;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: var(--surface2);
  flex-shrink: 0;
}
.vc-writing {
  gap: 2px;
  flex-shrink: 0;
}
.vc-kanji {
  font-family: var(--font-jp);
  font-size: 26px;
  line-height: 1.1;
  color: var(--text);
}
.vc-kana {
  font-size: 11px;
  color: var(--text2);
  font-weight: 700;
}
.vc-romaji {
  font-size: 10px;
  color: var(--text3);
  font-weight: 600;
  font-style: italic;
}
.vc-translation {
  gap: 3px;
}
.vc-sense {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}
.vc-sense-expl {
  font-size: 11px;
  color: var(--text2);
  font-style: italic;
  line-height: 1.5;
}
.vc-sense-en {
  font-size: 11px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 5px;
}
.vc-en-flag {
  font-size: 12px;
  flex-shrink: 0;
}
.vc-controls {
  align-items: center;
  gap: 8px;
  padding: 8px 10px !important;
}
.vc-jlpt {
  font-size: 9px;
  font-weight: 900;
  padding: 3px 7px;
  border-radius: 10px;
  letter-spacing: 0.06em;
  text-align: center;
}
.vc-jlpt--N5 {
  background: var(--mint-s);
  color: #065f46;
  border: 1.5px solid var(--mint);
}
.vc-jlpt--N4 {
  background: var(--sky-s);
  color: var(--sky-d);
  border: 1.5px solid var(--sky);
}
.vc-jlpt--N3 {
  background: var(--lav-s);
  color: #4338ca;
  border: 1.5px solid var(--lav);
}
.vc-jlpt--N2 {
  background: var(--amber-s);
  color: #92400e;
  border: 1.5px solid #f59e0b;
}
.vc-jlpt--N1 {
  background: var(--coral-s);
  color: #be123c;
  border: 1.5px solid var(--coral);
}
.vc-play {
  background: none;
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 13px;
  flex-shrink: 0;
  transition: all var(--t-fast);
}
.vocab-row:hover .vc-play {
  border-color: var(--sky);
}
.vocab-more {
  text-align: center;
  padding: 14px;
  font-size: 12px;
  color: var(--text2);
  font-weight: 600;
  border: 2px dashed var(--border);
  border-radius: var(--r-sm);
  margin-top: 4px;
}
.vocab-empty {
  text-align: center;
  padding: 40px 20px;
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
}
.vocab-load-more {
  background: none;
  border: 2px solid var(--sky);
  border-radius: 20px;
  color: var(--sky);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 800;
  padding: 4px 14px;
  cursor: pointer;
  margin-top: 6px;
  transition: all var(--t-fast);
}
.vocab-load-more:hover {
  background: var(--sky-s);
}
@media (max-width: 600px) {
  .vocab-row {
    grid-template-columns: 1fr 48px;
    min-height: auto;
  }
  .vc-emoji,
  .vc-translation {
    display: none;
  }
  .vc-writing {
    border-right: none;
    padding: 8px 12px;
  }
  .vc-controls {
    grid-column: 2;
    padding: 6px 8px !important;
    gap: 4px;
  }
  .vc-kanji {
    font-size: 20px;
  }
  .vc-play {
    width: 26px;
    height: 26px;
    font-size: 11px;
  }
}
@media (min-width: 601px) {
  .vc-sense-mobile {
    display: none;
  }
}

/* ═══ KANJI ═══ */
.kanji-ui {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.kanji-top {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.kanji-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.kanji-search-icon {
  position: absolute;
  left: 14px;
  font-size: 15px;
  pointer-events: none;
}
.kanji-search-input {
  width: 100%;
  padding: 13px 16px 13px 42px;
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border var(--t-fast);
}
.kanji-search-input:focus {
  border-color: var(--sky);
}
.kanji-filters {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}
.kf-btn {
  padding: 5px 14px;
  border-radius: 20px;
  border: 2px solid var(--border);
  background: var(--surface);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--font-ui);
}
.kf-btn[data-jlpt="all"].active,
.kf-btn[data-jlpt="all"]:hover {
  background: var(--surface2);
  color: var(--text2);
  border-color: var(--text3);
}
.kf-btn[data-jlpt="N5"].active,
.kf-btn[data-jlpt="N5"]:hover {
  background: var(--mint-s);
  color: #065f46;
  border-color: var(--mint);
}
.kf-btn[data-jlpt="N4"].active,
.kf-btn[data-jlpt="N4"]:hover {
  background: var(--sky-s);
  color: var(--sky-d);
  border-color: var(--sky);
}
.kf-btn[data-jlpt="N3"].active,
.kf-btn[data-jlpt="N3"]:hover {
  background: var(--lav-s);
  color: #4338ca;
  border-color: var(--lav);
}
.kf-btn[data-jlpt="N2"].active,
.kf-btn[data-jlpt="N2"]:hover {
  background: var(--amber-s);
  color: #92400e;
  border-color: #f59e0b;
}
.kf-btn[data-jlpt="N1"].active,
.kf-btn[data-jlpt="N1"]:hover {
  background: var(--coral-s);
  color: #be123c;
  border-color: var(--coral);
}
.kanji-count {
  font-size: 11px;
  color: var(--text2);
  font-weight: 700;
}
.kanji-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
}
.kanji-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: all var(--t-fast);
  box-shadow: var(--sh-sm);
  text-align: center;
  position: relative;
}
.kanji-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
}
.kanji-card--N5:hover {
  border-color: var(--mint);
  background: var(--mint-s);
}
.kanji-card--N4:hover {
  border-color: var(--sky);
  background: var(--sky-s);
}
.kanji-card--N3:hover {
  border-color: var(--lav);
  background: var(--lav-s);
}
.kanji-card--N2:hover {
  border-color: #f59e0b;
  background: var(--amber-s);
}
.kanji-card--N1:hover {
  border-color: var(--coral);
  background: var(--coral-s);
}
.kanji-char {
  font-family: var(--font-jp);
  font-size: 42px;
  line-height: 1.1;
  color: var(--text);
}
.kanji-it {
  font-size: 10px;
  font-weight: 700;
  color: var(--text2);
  line-height: 1.4;
}
.kanji-meta {
  display: flex;
  align-items: center;
  gap: 6px;
}
.kanji-strokes {
  font-size: 9px;
  color: var(--text3);
  font-weight: 700;
}
.kanji-jlpt-badge {
  font-size: 8px;
  font-weight: 900;
  padding: 2px 6px;
  border-radius: 10px;
  letter-spacing: 0.06em;
}
.kanji-jlpt--N5 {
  background: var(--mint-s);
  color: #065f46;
  border: 1px solid var(--mint);
}
.kanji-jlpt--N4 {
  background: var(--sky-s);
  color: var(--sky-d);
  border: 1px solid var(--sky);
}
.kanji-jlpt--N3 {
  background: var(--lav-s);
  color: #4338ca;
  border: 1px solid var(--lav);
}
.kanji-jlpt--N2 {
  background: var(--amber-s);
  color: #92400e;
  border: 1px solid #f59e0b;
}
.kanji-jlpt--N1 {
  background: var(--coral-s);
  color: #be123c;
  border: 1px solid var(--coral);
}
.kanji-card-emoji {
  font-size: 20px;
  line-height: 1;
  position: absolute;
  top: 8px;
  right: 8px;
  opacity: 0.7;
}
.kanji-loading {
  text-align: center;
  padding: 60px 20px;
}
.kanji-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top-color: var(--sky);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.kanji-error,
.kanji-empty {
  text-align: center;
  padding: 40px 20px;
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
}
.kanji-detail {
  padding: 0;
}
.kanji-detail-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
}
.kanji-detail-char {
  font-size: 96px;
  line-height: 1;
  color: var(--text);
  flex-shrink: 0;
}
.kanji-detail-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 8px;
}
.kanji-detail-it {
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
}
.kanji-detail-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.kanji-meta-item {
  font-size: 11px;
  color: var(--text2);
  font-weight: 700;
}
.kanji-detail-emoji {
  font-size: 36px;
  margin-right: 8px;
  vertical-align: middle;
}
.kanji-audio-btn {
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--surface2);
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--font-ui);
  align-self: flex-start;
  margin-top: 4px;
}
.kanji-audio-btn:hover {
  border-color: var(--sky);
  color: var(--sky);
}
.kanji-detail-section {
  margin-bottom: 22px;
}
.kanji-section-title {
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 10px;
}
.kanji-readings-row {
  display: flex;
  gap: 20px;
}
.kanji-readings-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kanji-readings-label {
  font-size: 10px;
  font-weight: 800;
  color: var(--text3);
}
.kanji-readings-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.kanji-reading-tag {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 800;
  font-family: var(--font-jp);
}
.kanji-reading-tag.on {
  background: var(--coral-s);
  color: #be123c;
  border: 1px solid var(--coral);
}
.kanji-reading-tag.kun {
  background: var(--sky-s);
  color: var(--sky-d);
  border: 1px solid var(--sky);
}
.kanji-none {
  font-size: 12px;
  color: var(--text3);
}
.kanji-ex-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.kanji-ex-row {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--surface2);
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
}
.kanji-ex-word {
  font-family: var(--font-jp);
  font-size: 20px;
  color: var(--text);
}
.kanji-ex-read {
  font-size: 11px;
  color: var(--text2);
  font-weight: 700;
}
.kanji-ex-it {
  font-size: 12px;
  color: var(--text);
  font-weight: 600;
}
.kanji-ex-play {
  background: none;
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 12px;
  transition: all var(--t-fast);
}
.kanji-ex-play:hover {
  border-color: var(--sky);
}
.kanji-canvas-note {
  font-size: 11px;
  color: var(--text2);
  font-weight: 600;
  margin-bottom: 12px;
}
.kanji-canvas-controls {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  max-width: 240px;
  margin-inline: auto;
}
@media (max-width: 480px) {
  .kanji-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  }
  .kanji-char {
    font-size: 34px;
  }
  .kanji-detail-char {
    font-size: 72px;
  }
  .kanji-detail-header {
    gap: 12px;
  }
}

/* ═══ AUTH ═══ */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #e0f2fe 0%, #ede9fe 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}
.auth-card {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 2px solid var(--border);
  padding: 32px 28px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--sh-lg);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.auth-logo {
  text-align: center;
}
.auth-logo .logo-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--sky), var(--lav));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-jp);
  font-size: 28px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.35);
  margin: 0 auto 8px;
}
.auth-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
}
.auth-subtitle {
  font-size: 12px;
  color: var(--text2);
  font-weight: 600;
  margin-top: 4px;
}
.auth-tabs {
  display: flex;
  border-radius: var(--r-sm);
  background: var(--surface2);
  padding: 3px;
  gap: 3px;
}
.auth-tab {
  flex: 1;
  padding: 8px;
  border: none;
  border-radius: var(--r-sm);
  background: none;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
}
.auth-tab.active {
  background: var(--surface);
  color: var(--sky);
  box-shadow: var(--sh-sm);
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.auth-label {
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
}
.auth-input {
  padding: 11px 14px;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-family: var(--font-ui);
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border var(--t-fast);
}
.auth-input:focus {
  border-color: var(--sky);
}
.auth-error {
  font-size: 12px;
  font-weight: 700;
  min-height: 16px;
  margin: 0;
}
.auth-submit {
  padding: 13px;
  border: none;
  border-radius: var(--r-sm);
  background: linear-gradient(135deg, var(--sky), var(--lav));
  color: #fff;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: opacity var(--t-fast);
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3);
}
.auth-submit:hover {
  opacity: 0.9;
}
.auth-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text3);
  font-size: 11px;
  font-weight: 700;
}
.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}
.auth-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  transition: all var(--t-fast);
}
.auth-google:hover {
  border-color: var(--sky);
  background: var(--sky-s);
}
.auth-forgot-btn {
  background: none;
  border: none;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  color: var(--sky);
  cursor: pointer;
  padding: 4px 0 0;
  text-align: right;
  align-self: flex-end;
  transition: opacity var(--t-fast);
}
.auth-forgot-btn:hover {
  opacity: 0.7;
}
.auth-reset-box {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.auth-reset-desc {
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  line-height: 1.6;
  margin: 0;
}
.auth-reset-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.auth-reset-ok {
  font-size: 12px;
  font-weight: 700;
  color: var(--mint);
  margin: 0;
  text-align: center;
}
.auth-back-btn {
  background: none;
  border: none;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  color: var(--text2);
  cursor: pointer;
  padding: 4px 0;
  text-align: center;
  transition: color var(--t-fast);
}
.auth-back-btn:hover {
  color: var(--sky);
}
.auth-link {
  color: var(--sky);
  text-decoration: underline;
}
.prof-credentials-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.pwd-strength {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pwd-strength-bar {
  height: 4px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.pwd-strength-fill {
  height: 100%;
  width: 0%;
  border-radius: 4px;
  transition:
    width var(--t-base),
    background var(--t-base);
}
.pwd-strength-fill.weak {
  background: var(--coral);
  width: 25%;
}
.pwd-strength-fill.fair {
  background: var(--amber);
  width: 50%;
}
.pwd-strength-fill.good {
  background: var(--sky);
  width: 75%;
}
.pwd-strength-fill.strong {
  background: var(--mint);
  width: 100%;
}
.pwd-strength-rules {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 4px;
}
.pwd-rule {
  font-size: 10px;
  font-weight: 800;
  color: var(--text3);
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 2px 8px;
  transition: all var(--t-fast);
}
.pwd-rule.ok {
  color: var(--mint);
  background: var(--mint-s);
  border-color: var(--mint);
}
.pwd-match {
  font-size: 11px;
  font-weight: 700;
  margin-top: 6px;
  min-height: 16px;
}
.pwd-match.ok {
  color: var(--mint);
}
.pwd-match.fail {
  color: var(--coral);
}
.date-picker {
  display: grid;
  grid-template-columns: 70px 1fr 90px;
  gap: 8px;
}
.dp-wrap {
  position: relative;
}
.dp-btn {
  width: 100%;
  padding: 11px 14px;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  color: var(--text2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  transition: border var(--t-fast);
  text-align: left;
  outline: none;
}
.dp-btn:hover,
.dp-btn.open,
.dp-btn:focus {
  border-color: var(--sky);
  color: var(--text);
}
.dp-btn:focus {
  box-shadow: 0 0 0 3px var(--sky-s);
}
.dp-btn.selected {
  color: var(--text);
}
.dp-arrow {
  font-size: 9px;
  color: var(--text3);
  transition: transform var(--t-fast);
  flex-shrink: 0;
}
.dp-btn.open .dp-arrow {
  transform: rotate(180deg);
}
.dp-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 100%;
  background: var(--surface);
  border: 2px solid var(--sky);
  border-radius: var(--r-sm);
  box-shadow: var(--sh-lg);
  z-index: 200;
  max-height: 200px;
  overflow-y: auto;
  display: none;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.dp-dropdown.open {
  display: block;
}
.dp-option {
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: background var(--t-fast);
  white-space: nowrap;
}
.dp-option:hover,
.dp-option.selected,
.dp-option.focused {
  background: var(--sky-s);
  color: var(--sky-d);
}
.dp-option.selected {
  font-weight: 800;
}
.date-age-note {
  font-size: 11px;
  font-weight: 700;
  color: var(--coral);
  margin: 4px 0 0;
}
@media (max-width: 480px) {
  .date-picker {
    grid-template-columns: 64px 1fr 80px;
  }
}

/* ═══ PROFILE PAGE ═══ */
.profile-overlay {
  align-items: flex-start !important;
  overflow-y: auto !important;
  padding: 24px 16px !important;
}
.profile-card {
  max-width: 560px;
  overflow: hidden;
  gap: 16px;
  margin: auto;
  position: relative;
}
.profile-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text2);
  cursor: pointer;
  z-index: 10;
  transition: all var(--t-fast);
}
.profile-close-btn:hover {
  background: var(--coral-s);
  color: var(--coral);
  border-color: var(--coral);
}
.profile-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
}
.profile-section-title {
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text2);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  margin-top: 4px;
}
.profile-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.profile-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.profile-check {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  transition: all var(--t-fast);
}
.profile-check:hover {
  border-color: var(--sky);
  background: var(--sky-s);
}
.profile-check input {
  display: none;
}
.profile-check:has(input:checked) {
  background: var(--sky-s);
  border-color: var(--sky);
  color: var(--sky-d);
}
.profile-consents {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.profile-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  cursor: pointer;
  line-height: 1.5;
}
.profile-consent input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--sky);
  cursor: pointer;
}
.profile-consent.required {
  color: var(--text);
  font-weight: 700;
}
@media (max-width: 480px) {
  .profile-row {
    grid-template-columns: 1fr;
  }
}
.ppage-section {
  padding: var(--space-md) 0 var(--space-xl);
}
.ppage-header {
  margin-bottom: var(--space-md);
}
.ppage-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 4px;
  margin-bottom: var(--space-lg);
  background: var(--surface2);
  border-radius: var(--r-md);
  padding: 4px;
  border: 2px solid var(--border);
}
.ppage-tab {
  flex: none;
  min-width: 0;
  padding: 10px 12px;
  border: none;
  border-radius: var(--r-sm);
  background: none;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 800;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-base);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ppage-tab:hover {
  color: var(--text);
  background: var(--surface);
}
.ppage-tab.active {
  background: var(--surface);
  color: var(--sky);
  box-shadow: var(--sh-sm);
}
.ppage-panel {
  display: none;
}
.ppage-panel.active {
  display: block;
}
.ppage-readonly-notice {
  background: var(--amber-s);
  border: 1.5px solid var(--amber);
  border-radius: var(--r-sm);
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 700;
  color: #92400e;
  margin-bottom: var(--space-md);
  line-height: 1.6;
}
.ppage-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--sh-sm);
}
.ppage-card-danger {
  border-color: var(--coral-s);
  background: #fff8f8;
}
.ppage-card-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
}
.ppage-card-desc {
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
  line-height: 1.6;
  margin: 0;
}
.ppage-card-btn {
  align-self: flex-start;
  padding: 9px 18px;
  font-size: 12px;
}
.ppage-fields-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.ppage-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ppage-field-label {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text3);
}
.ppage-field-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}
.ppage-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.ppage-subform {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  background: var(--surface2);
  border-radius: var(--r-sm);
  border: 1.5px solid var(--border);
}
.ppage-subform-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.ppage-success {
  font-size: 12px;
  font-weight: 700;
  color: var(--mint);
  margin: 0;
}
.ppage-btn-danger {
  align-self: flex-start;
  padding: 9px 18px;
  font-size: 12px;
  border-color: var(--coral);
  color: var(--coral);
  font-weight: 800;
}
.ppage-btn-danger:hover {
  background: var(--coral);
  color: #fff;
  border-color: var(--coral);
}
.ppage-btn-safe {
  align-self: flex-start;
  padding: 9px 18px;
  font-size: 12px;
  border: 2px solid var(--mint);
  color: var(--mint);
  font-weight: 800;
  background: var(--surface);
  border-radius: var(--r-sm);
  cursor: pointer;
  font-family: var(--font-ui);
  transition: all var(--t-fast);
}
.ppage-btn-safe:hover {
  background: var(--mint);
  color: #fff;
}
.ppage-deletion-pending {
  background: var(--amber-s);
  border: 1.5px solid var(--amber);
  border-radius: var(--r-sm);
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  color: #92400e;
  line-height: 1.6;
}
.ppage-danger-divider {
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--coral);
  padding: var(--space-md) 0 var(--space-sm);
  border-top: 2px solid var(--coral-s);
  margin-top: var(--space-sm);
}
.ppage-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.ppage-stat-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  box-shadow: var(--sh-sm);
  transition: transform var(--t-fast);
}
.ppage-stat-card:hover {
  transform: translateY(-2px);
}
.ppage-stat-icon {
  font-size: 26px;
  color: var(--sky);
  line-height: 1;
}
.ppage-stat-num {
  font-size: 32px;
  font-weight: 900;
  color: var(--text);
  line-height: 1;
}
.ppage-stat-lbl {
  font-size: 10px;
  font-weight: 800;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.deletion-banner {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  background: #fef3c7;
  border-bottom: 2px solid var(--amber);
  padding: 10px var(--space-lg);
  font-size: 13px;
  font-weight: 700;
  color: #92400e;
  text-align: center;
  position: sticky;
  top: 62px;
  z-index: 90;
}
.deletion-banner-btn {
  padding: 6px 14px;
  border: 2px solid var(--mint);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--mint);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--t-fast);
  flex-shrink: 0;
}
.deletion-banner-btn:hover {
  background: var(--mint);
  color: #fff;
}
@media (max-width: 600px) {
  .ppage-tab {
    font-size: 11px;
    padding: 8px;
  }
  .ppage-fields-grid {
    grid-template-columns: 1fr;
  }
  .ppage-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .deletion-banner {
    top: 62px;
    font-size: 12px;
  }
}

/* ═══ SPLASH ═══ */
#app-splash {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #e0f2fe 0%, #ede9fe 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  transition: opacity 300ms ease;
}
#app-splash.hidden {
  opacity: 0;
  pointer-events: none;
}
.splash-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.splash-logo .logo-icon {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--sky), var(--lav));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-jp);
  font-size: 32px;
  color: #fff;
  box-shadow: 0 8px 32px rgba(56, 189, 248, 0.4);
}
.splash-text {
  font-size: 24px;
  font-weight: 900;
  color: var(--text);
}
.splash-text span {
  color: var(--sky);
}

/* ═══ ANALISI ERRORI ═══ */
.ea-back-btn {
  padding: 7px 16px;
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 800;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
}
.ea-back-btn:hover {
  border-color: var(--sky);
  color: var(--sky);
}
.ea-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: var(--space-lg);
}
.ea-summary-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  padding: 20px 14px;
  text-align: center;
  box-shadow: var(--sh-sm);
}
.ea-summary-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--sky);
  line-height: 1.1;
}
.ea-summary-lbl {
  font-size: 9px;
  font-weight: 900;
  color: var(--text2);
  margin-top: 5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.ea-bar-row {
  display: grid;
  grid-template-columns: 100px 1fr 48px;
  align-items: center;
  gap: 10px;
}
.ea-bar-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}
.ea-bar-track {
  height: 10px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.ea-bar-fill {
  height: 100%;
  border-radius: 99px;
  transition: width 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.ea-bar-fill.good {
  background: var(--mint);
}
.ea-bar-fill.medium {
  background: var(--amber);
}
.ea-bar-fill.bad {
  background: var(--coral);
}
.ea-bar-pct {
  font-size: 11px;
  font-weight: 800;
  text-align: right;
}
.ea-top-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-lg);
}
.ea-top-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: 12px 16px;
  box-shadow: var(--sh-sm);
  transition: all var(--t-fast);
}
.ea-top-item:hover {
  border-color: var(--coral);
  background: var(--coral-s);
}
.ea-top-kana {
  font-family: var(--font-jp);
  font-size: 1.8rem;
  line-height: 1;
  min-width: 2.5rem;
  text-align: center;
  color: var(--text);
}
.ea-top-info {
  flex: 1;
  min-width: 0;
}
.ea-top-reading {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}
.ea-top-module {
  font-size: 11px;
  color: var(--text2);
  font-weight: 600;
  margin-top: 2px;
}
.ea-top-badge {
  font-size: 11px;
  font-weight: 900;
  background: var(--coral-s);
  color: var(--coral);
  border: 1.5px solid var(--coral);
  border-radius: 99px;
  padding: 4px 10px;
  white-space: nowrap;
}
.ea-top-group {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 8px;
  box-shadow: var(--sh-sm);
}
.ea-top-group-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 800;
  color: var(--text);
  text-align: left;
  transition: background var(--t-fast);
}
.ea-top-group-header:hover {
  background: var(--surface2);
}
.ea-top-group-count {
  font-size: 10px;
  font-weight: 700;
  color: var(--text2);
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 99px;
  padding: 2px 8px;
  margin-left: auto;
}
.ea-top-group-body {
  border-top: 1.5px solid var(--border);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ea-chart-wrap {
  margin-bottom: var(--space-lg);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  box-shadow: var(--sh-sm);
}
.ea-chart-wrap canvas {
  width: 100%;
  max-height: 220px;
}
.ea-chart-empty {
  text-align: center;
  color: var(--text2);
  font-size: 13px;
  font-weight: 600;
  padding: var(--space-xl) 0;
}
.ea-sessions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-lg);
}
.ea-session-mod {
  display: flex;
  align-items: center;
}
.ea-session-chip {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.ea-empty-msg {
  text-align: center;
  color: var(--text2);
  font-size: 13px;
  font-weight: 600;
  padding: var(--space-lg) 0;
}
.ea-bar-skeleton {
  height: 20px;
  background: linear-gradient(
    90deg,
    var(--surface2) 25%,
    var(--border) 50%,
    var(--surface2) 75%
  );
  background-size: 200% 100%;
  animation: ea-shimmer 1.4s infinite;
  border-radius: var(--r-sm);
}
@keyframes ea-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}
.ea-recap-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-lg);
}
.ea-recap-item {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--sh-sm);
}
.ea-recap-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-ui);
  text-align: left;
  transition: background var(--t-fast);
}
.ea-recap-header:hover {
  background: var(--surface2);
}
.ea-recap-kana {
  font-family: var(--font-jp);
  font-size: 1.8rem;
  line-height: 1;
  min-width: 2.5rem;
  color: var(--text);
}
.ea-recap-info {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.ea-recap-pct {
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1;
}
.ea-recap-count {
  font-size: 11px;
  color: var(--text2);
  font-weight: 600;
}
.ea-recap-grade {
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 99px;
  padding: 2px 8px;
}
.ea-recap-arrow {
  font-size: 10px;
  color: var(--text3);
}
.ea-recap-body {
  border-top: 1.5px solid var(--border);
  overflow-x: auto;
}
.ea-recap-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}
.ea-recap-table th {
  background: var(--surface2);
  padding: 7px 10px;
  text-align: left;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text2);
  white-space: nowrap;
}
.ea-recap-table td {
  padding: 7px 10px;
  border-top: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}
.ea-recap-row:hover td {
  background: var(--surface2);
}
@media (max-width: 600px) {
  .ea-summary-num {
    font-size: 1.5rem;
  }
  .ea-bar-row {
    grid-template-columns: 80px 1fr 40px;
  }
  .ea-recap-table {
    font-size: 10px;
  }
  .ea-recap-table th,
  .ea-recap-table td {
    padding: 6px 8px;
  }
}

/* ═══ KANA COLLAPSIBLE & ESERCIZI ═══ */
.kana-collapsible {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 8px;
  box-shadow: var(--sh-sm);
}
.kana-collapse-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
  text-align: left;
  transition: background var(--t-fast);
}
.kana-collapse-toggle:hover {
  background: var(--surface2);
}
.collapse-arrow {
  font-size: 9px;
  color: var(--text3);
  display: inline-block;
  min-width: 10px;
}
.kana-collapse-body.collapsed {
  display: none;
}
.kana-collapse-body .kana-collapse-inner {
  border-top: 1.5px solid var(--border);
  padding: 12px 16px 16px;
}
.esercizi-panel {
  background: var(--surface2);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.esercizi-scope-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.esercizi-mode-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.esercizi-scope-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
}
.esercizi-scope-label input[type="radio"] {
  accent-color: var(--sky);
  width: 15px;
  height: 15px;
  cursor: pointer;
}
.esercizi-avvia {
  align-self: flex-start;
}

/* ═══ SEZIONE PRATICA ═══ */
.pratica-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-sm);
}
@media (max-width: 600px) {
  .pratica-grid {
    grid-template-columns: 1fr;
  }
}
.pratica-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--sh-sm);
  transition: all var(--t-base);
}
.pratica-card-srs {
  cursor: pointer;
}
.pratica-card-srs:hover {
  border-color: var(--lav);
  box-shadow: var(--sh-md);
  transform: translateY(-2px);
}
.pratica-card-icon {
  font-size: 32px;
  line-height: 1;
}
.pratica-card-title {
  font-size: 16px;
  font-weight: 900;
  color: var(--text);
}
.pratica-card-desc {
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  line-height: 1.7;
}
.pratica-libera-scelta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
}
.pratica-kana-btn {
  padding: 6px 14px;
  border-radius: 20px;
  border: 2px solid var(--border);
  background: var(--surface);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
}
.pratica-kana-btn:hover {
  background: var(--sky);
  color: #fff;
  border-color: var(--sky);
}
.pratica-card-srs-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.pratica-srs-due {
  display: inline-flex;
  align-items: center;
  background: var(--coral);
  color: #fff;
  font-size: 10px;
  font-weight: 900;
  border-radius: 20px;
  padding: 3px 10px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(251, 113, 133, 0.35);
  animation: due-pulse 2s ease-in-out infinite;
}
@keyframes due-pulse {
  0%,
  100% {
    box-shadow: 0 2px 8px rgba(251, 113, 133, 0.35);
  }
  50% {
    box-shadow: 0 2px 14px rgba(251, 113, 133, 0.6);
  }
}
.pratica-card-srs--due {
  border-color: var(--coral) !important;
  box-shadow:
    0 0 0 3px var(--coral-s),
    var(--sh-sm);
}
.pratica-card-srs--due:hover {
  border-color: var(--coral) !important;
  box-shadow:
    0 0 0 3px var(--coral-s),
    var(--sh-md);
}

/* ═══ KANA PRACTICE ═══ */
.kprac-session {
  max-width: 520px;
  margin: 0 auto;
}
.kprac-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
}
.kprac-progress-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
}
.kprac-progress-bar {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.kprac-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--sky), var(--lav));
  border-radius: 4px;
  transition: width 0.4s ease;
}
.kprac-progress-label {
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  white-space: nowrap;
}
.kprac-score {
  display: flex;
  gap: 12px;
}
.kprac-score-ok {
  font-size: 12px;
  font-weight: 900;
  color: var(--mint);
}
.kprac-score-bad {
  font-size: 12px;
  font-weight: 900;
  color: var(--coral);
}
.kprac-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--sh-md);
  position: relative;
  overflow: hidden;
}
.kprac-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.kprac-chip {
  font-size: 11px !important;
  padding: 5px 14px !important;
}
.kprac-mode-badge {
  font-size: 10px;
  font-weight: 800;
  color: var(--text2);
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 3px 10px;
  margin-left: auto;
}
.kprac-card-label {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 16px;
}
.kprac-kana {
  font-size: 96px;
  line-height: 1;
  color: var(--text);
  margin-bottom: 12px;
}
.kprac-audio-btn {
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--surface2);
  padding: 6px 16px;
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  margin-bottom: 24px;
  transition: all var(--t-fast);
  cursor: pointer;
  font-family: var(--font-ui);
}
.kprac-audio-btn:hover {
  border-color: var(--sky);
  color: var(--sky);
}
.kprac-input-wrap {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.kprac-input {
  flex: 1;
  padding: 13px 16px;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  background: var(--surface);
  outline: none;
  transition: border var(--t-fast);
  text-align: center;
  letter-spacing: 0.05em;
}
.kprac-input:focus {
  border-color: var(--sky);
}
.kprac-input:disabled {
  background: var(--surface2);
  color: var(--text2);
  cursor: default;
}
.kprac-feedback {
  font-size: 14px;
  font-weight: 800;
  padding: 12px 16px;
  border-radius: var(--r-sm);
  margin-bottom: 16px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.kprac-feedback.ok {
  background: var(--mint-s);
  color: #065f46;
}
.kprac-feedback.fail {
  background: var(--coral-s);
  color: #be123c;
}
.kprac-next {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--sky), var(--lav));
  color: #fff;
  border: none;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3);
  transition: all var(--t-fast);
}
.kprac-next:hover {
  opacity: 0.9;
}
.kprac-result {
  text-align: center;
  padding: 20px;
}
.kprac-result-pct {
  font-size: 64px;
  font-weight: 900;
  color: var(--sky);
  line-height: 1;
}
.kprac-result-msg {
  font-size: 22px;
  font-weight: 900;
  margin: 10px 0 6px;
}
.kprac-result-detail {
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
}
.kprac-empty {
  text-align: center;
  padding: 60px 20px;
}
.kprac-empty-icon {
  font-size: 48px;
  margin-bottom: 14px;
}
.kprac-empty-title {
  font-size: 18px;
  font-weight: 900;
  margin-bottom: 8px;
}
.kprac-empty-sub {
  font-size: 13px;
  color: var(--text2);
  font-weight: 600;
  line-height: 1.8;
}
.kprac-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}
.kprac-options--kana {
  grid-template-columns: 1fr 1fr !important;
}
.kprac-opt {
  padding: 14px;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--font-ui);
  color: var(--text);
}
.kprac-opt:hover:not(:disabled) {
  border-color: var(--lav);
  background: var(--lav-s);
  color: var(--lav);
  transform: scale(1.02);
}
.kprac-opt.correct {
  background: var(--mint-s);
  border-color: var(--mint);
  color: #065f46;
}
.kprac-opt.wrong {
  background: var(--coral-s);
  border-color: var(--coral);
  color: #be123c;
}
.kprac-opt:disabled {
  cursor: default;
}
.kprac-opt--kana {
  font-family: var(--font-jp) !important;
  font-size: 36px !important;
  padding: 20px !important;
  line-height: 1.2;
}
.kprac-audio-big {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 24px;
  padding: 16px 32px;
  border: 2px solid var(--sky);
  border-radius: var(--r-md);
  background: var(--sky-s);
  font-size: 16px;
  font-weight: 800;
  color: var(--sky);
  cursor: pointer;
  font-family: var(--font-ui);
  transition: all var(--t-fast);
}
.kprac-audio-big:hover {
  background: var(--sky);
  color: #fff;
}
.kprac-canvas-wrap {
  max-width: 260px;
  margin: 12px auto;
}
.kprac-canvas-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}
.kprac-canvas-actions .btn {
  flex: 1;
}
.match-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.match-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.match-card {
  padding: 0;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: all var(--t-fast);
  color: var(--text);
  text-align: center;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.match-card--kana {
  font-family: var(--font-jp);
  font-size: 28px;
}
.match-card:hover:not(:disabled) {
  border-color: var(--lav);
  background: var(--lav-s);
  transform: scale(1.02);
}
.match-card.selected {
  border-color: var(--sky);
  background: var(--sky-s);
  color: var(--sky-d);
  box-shadow: 0 0 0 3px var(--sky-s);
}
.match-card.matched {
  border-color: var(--mint);
  background: var(--mint-s);
  color: #065f46;
  cursor: default;
  animation: match-pop 0.3s ease;
}
.match-card.wrong {
  border-color: var(--coral);
  background: var(--coral-s);
  animation: match-shake 0.4s ease;
}
@keyframes match-pop {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}
@keyframes match-shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}
@media (max-width: 600px) {
  .kprac-kana {
    font-size: 72px;
  }
  .kprac-card {
    padding: 24px 16px;
  }
  .kprac-input-wrap {
    flex-direction: column;
  }
  .match-card--kana {
    font-size: 22px;
  }
}

/* ═══ FLASHCARD FLIP 3D ═══ */
.fc-card-outer {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
  padding: 0 !important;
  margin: 0 !important;
}
.fc-flipper {
  position: relative;
  width: 100%;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.fc-flipper.flipped {
  transform: rotateY(180deg);
}
.fc-face {
  width: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  padding: 36px 28px;
  box-shadow: var(--sh-md);
  text-align: center;
  box-sizing: border-box;
}
.fc-face--front {
  position: relative;
}
.fc-face--back {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  transform: rotateY(180deg);
}
.fc-flipper:not(.flipped) .fc-face--back {
  visibility: hidden;
}
.fc-flipper.flipped .fc-face--front {
  visibility: hidden;
}
.fc-flip-kana {
  font-size: 96px;
  line-height: 1;
  color: var(--text);
  margin-bottom: 8px;
}
.fc-romaji {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 12px;
  transition: color 0.3s ease;
}
.fc-example {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  padding: 10px 16px;
  margin-bottom: 16px;
  text-align: center;
}
.fc-example-jp {
  font-size: 20px;
  display: block;
  margin-bottom: 4px;
  color: var(--text);
}
.fc-example-it {
  font-size: 12px;
  color: var(--text2);
  font-weight: 600;
}
#kprac-feedback,
#kprac-next,
#srs-fb,
#srs-next {
  position: relative;
  z-index: 2;
}
@media (max-width: 600px) {
  .fc-face {
    padding: 24px 16px;
  }
  .fc-flip-kana {
    font-size: 72px;
  }
}

/* ═══ RESPONSIVE GLOBALS ═══ */
@media (max-width: 600px) {
  .container,
  .app-header,
  .app-nav {
    padding: 0 var(--space-md);
  }
  .home-hero .hero-jp {
    font-size: 72px;
  }
  .kana-grid {
    gap: 5px;
  }
  .kana-card {
    padding: 10px 4px;
    -webkit-tap-highlight-color: transparent;
  }
  .kana-card .kana-char {
    font-size: 22px;
  }
  .modal-kana {
    font-size: 72px;
  }
  .modal-overlay {
    padding: 8px;
  }
}
@media (max-width: 480px) {
  .modal {
    padding: 24px 18px;
  }
  .canvas-wrap {
    max-width: 240px;
  }
}
/* ── Bottone switch alfabeto ── */
.kana-switch-btn {
  margin-left: auto;
  font-size: 11px;
  padding: 5px 14px;
  border-radius: 20px;
  font-weight: 800;
}
/* ── Navigazione prev/next nel modal ── */
.modal-nav-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.modal-nav-btn {
  flex: 1;
  font-size: 11px;
  padding: 7px 12px;
}
.modal-nav-btn:disabled {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}
.modal-nav-counter {
  font-size: 11px;
  font-weight: 800;
  color: var(--text2);
  white-space: nowrap;
  text-align: center;
  min-width: 48px;
}