:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3248;
  --primary: #6c63ff;
  --primary-dim: #4d45cc;
  --success: #22c55e;
  --danger: #ef4444;
  --text: #e8eaf6;
  --text-muted: #7b82a0;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body.mode-free {
  --primary: #f59e0b;
  --primary-dim: #d97706;
}

body.mode-free .card-box {
  border-color: rgba(245, 158, 11, 0.35);
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.2), var(--shadow);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

#app {
  height: 100%;
  display: flex;
  flex-direction: column;
  max-width: 480px;
  margin: 0 auto;
}

/* ── Ionic platform look ───────────────────────────────────── */

body.platform-ios {
  --bg: #f2f2f7;
  --surface: #ffffff;
  --surface2: #f4f5f8;
  --border: #dde1ea;
  --primary: #007aff;
  --primary-dim: #0063cc;
  --success: #34c759;
  --danger: #ff3b30;
  --text: #111827;
  --text-muted: #6b7280;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 6px 24px rgba(17, 24, 39, 0.08);
}

body.platform-md {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface2: #eef1f7;
  --border: #dde3ef;
  --primary: #3f51b5;
  --primary-dim: #35449a;
  --success: #2e7d32;
  --danger: #c62828;
  --text: #0f172a;
  --text-muted: #64748b;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 4px 18px rgba(15, 23, 42, 0.1);
}

body.platform-ios .topbar {
  --background: rgba(248, 248, 252, 0.82);
  --border-color: #e6e8ef;
  margin: 0;
  backdrop-filter: blur(18px);
}

body.platform-md .topbar {
  --background: #ffffff;
  --border-color: #e7ebf3;
  margin: 0;
}

body.platform-ios .topbar::part(container),
body.platform-md .topbar::part(container) {
  border-bottom: 1px solid var(--border-color);
}

body.platform-ios .btn,
body.platform-md .btn {
  min-height: 46px;
  border-radius: 14px;
}

body.platform-ios .btn-primary {
  box-shadow: 0 8px 18px rgba(0, 122, 255, 0.22);
}

body.platform-md .btn-primary {
  box-shadow: 0 6px 14px rgba(63, 81, 181, 0.22);
}

/* ── screens ───────────────────────────────────────────────── */

.screen { display: none; flex-direction: column; height: 100%; }
.screen.active { display: flex; }

.screen-content::part(scroll) {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 100%;
}

/* ── splash ─────────────────────────────────────────────────── */

#splash-screen {
  justify-content: center;
  align-items: center;
  background: #ffffff;
}

.splash-logo {
  width: 88%;
  max-width: 460px;
  animation: splashIn 1.5s ease;
}

@keyframes splashIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── top bar ────────────────────────────────────────────────── */

.topbar {
  --background: transparent;
  --border-color: transparent;
  --min-height: 56px;
  --padding-start: 20px;
  --padding-end: 20px;
  --padding-top: max(16px, env(safe-area-inset-top));
  --padding-bottom: 8px;
}

.topbar-actions {
  gap: 6px;
}

.topbar-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--primary);
}

.topbar-brand {
  text-align: left;
  color: #374151;
  font-family: "Comic Sans MS", "Marker Felt", "Chalkboard SE", cursive;
  font-size: 30pxpx;
  font-weight: 800;
  letter-spacing: 0.2px;
}

body.platform-ios .topbar-brand {
  font-size: 27px;
}

body.platform-md .topbar-brand {
  font-size: 28px;
}

.auth-icon-btn { opacity: 0.45; }
.auth-icon-btn.logged-in { opacity: 1; }
.user-initial {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  pointer-events: none;
}

.topbar-logo {
  height: 30px;
  width: auto;
  object-fit: contain;
}

.main-tabbar {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 100%;
  max-width: 480px;
  z-index: 40;
  background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid #e7ebf3;
  padding-bottom: env(safe-area-inset-bottom);
  display: flex;
  gap: 2px;
  padding-left: 6px;
  padding-right: 6px;
  backdrop-filter: blur(18px);
}

.main-tabbar .tab-item {
  flex: 1;
  margin: 0;
  --color: var(--text-muted);
  --padding-start: 0;
  --padding-end: 0;
  --padding-top: 0;
  --padding-bottom: 0;
  min-height: 54px;
}

.main-tabbar .tab-item::part(native) {
  border-radius: 10px;
  transition: color 0.18s ease, background-color 0.18s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-tabbar .tab-item.is-active {
  --color: var(--primary);
}

.main-tabbar .tab-item.is-active::part(native) {
  background: color-mix(in srgb, var(--primary) 10%, transparent);
}

.main-tabbar .tab-item ion-icon {
  font-size: 22px;
  line-height: 1;
}

body.platform-md .main-tabbar {
  background: #ffffff;
  backdrop-filter: none;
}

body.with-bottom-nav .screen-content {
  --padding-bottom: calc(86px + env(safe-area-inset-bottom)) !important;
}

.ion-icon-btn {
  --color: var(--text-muted);
  --padding-start: 0;
  --padding-end: 0;
  --padding-top: 0;
  --padding-bottom: 0;
  min-width: 36px;
  min-height: 36px;
  font-size: 20px;
  margin: 0;
}

.ion-icon-btn::part(native) {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--surface2);
  border: 1px solid var(--border);
}

.ion-icon-btn:hover { --color: var(--text); }

/* ── auth screen ────────────────────────────────────────────── */

#auth-screen {
  gap: 0;
}

.auth-logo {
  font-size: 48px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -2px;
  text-align: center;
}

.auth-subtitle {
  color: var(--text-muted);
  font-size: 14px;
  text-align: center;
  margin-top: -16px;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0;
}

ion-card.auth-card::part(native),
ion-card.profile-card::part(native),
ion-card.stats-card::part(native),
ion-card.card-box::part(native) {
  margin: 0;
  border-radius: inherit;
}

ion-card.profile-card::part(native) {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.auth-tabs {
  display: flex;
  background: var(--surface2);
  border-radius: var(--radius-sm);
  padding: 4px;
}

.auth-tab {
  flex: 1;
  padding: 8px;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  border-radius: calc(var(--radius-sm) - 2px);
  cursor: pointer;
  transition: all 0.15s;
}

.auth-tab.active {
  background: var(--primary);
  color: white;
}

.input-group { display: flex; flex-direction: column; gap: 6px; }

.input-group label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group input {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-size: 16px;
  outline: none;
  transition: border-color 0.15s;
}
.input-group input:focus { border-color: var(--primary); }

.error-msg {
  color: var(--danger);
  font-size: 13px;
  min-height: 18px;
}

/* ── buttons ────────────────────────────────────────────────── */

.btn {
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  padding: 14px 20px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

ion-button.btn {
  --border-radius: var(--radius-sm);
  --box-shadow: none;
  --padding-top: 14px;
  --padding-bottom: 14px;
  --padding-start: 20px;
  --padding-end: 20px;
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

ion-button.btn::part(native) {
  text-transform: none;
  font-weight: 600;
}

.btn-primary {
  background: var(--primary);
  color: white;
}
ion-button.btn-primary {
  --background: var(--primary);
  --background-hover: var(--primary-dim);
  --background-activated: var(--primary-dim);
  --color: #fff;
}
.btn-primary:active { background: var(--primary-dim); transform: scale(0.98); }

.btn-success {
  background: var(--success);
  color: white;
  flex: 1;
}
ion-button.btn-success {
  --background: var(--success);
  --color: #fff;
  flex: 1;
}
.btn-danger {
  background: var(--danger);
  color: white;
  flex: 1;
}
ion-button.btn-danger {
  --background: var(--danger);
  --color: #fff;
  flex: 1;
}
.btn-ghost {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}
ion-button.btn-ghost {
  --background: var(--surface2);
  --background-activated: var(--surface2);
  --color: var(--text);
  --border-color: var(--border);
  --border-style: solid;
  --border-width: 1px;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ── card screen ────────────────────────────────────────────── */

#card-screen {
  padding: 0;
}

#card-screen .screen-content {
  --padding-start: 16px;
  --padding-end: 16px;
  --padding-bottom: 12px;
  --padding-top: 6px;
  background:
    radial-gradient(120% 45% at 50% -10%, rgba(99, 102, 241, 0.08), transparent 56%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 30%);
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
}

.card-corners {
  position: absolute;
  top: 12px;
  left: 14px;
  width: 100%;
  display: flex;
  justify-content: flex-end;
  align-items: flex-start;
  padding-right: 28px;
  gap: 8px;
  z-index: 2;
  pointer-events: none;
}

#card-new {
  order: 1;
  margin-left: 0;
}

#card-level {
  order: 2;
  margin-left: 0;
}

.badge {
  background: color-mix(in srgb, var(--surface2) 78%, white 22%);
  border: 1px solid color-mix(in srgb, var(--border) 82%, white 18%);
  border-radius: 20px;
  padding: 5px 11px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
  color: var(--text-muted);
}

.badge.mood { color: #7c3aed; border-color: #c4b5fd; background: #f5f3ff; }
.badge.tense { color: #0369a1; border-color: #bae6fd; background: #f0f9ff; }
.badge.level { color: #475569; border-color: #cbd5e1; background: #f8fafc; font-weight: 700; }

.card-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  text-align: center;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  position: relative;
}

.topbar-card-logo {
  text-align: left;
}

.topbar-chameleon-logo {
  height: 100px;
  width: auto;
  object-fit: contain;
  display: inline-block;
  position: relative;
  z-index: 120;
}

/* Float the chameleon logo above content without pushing layout down */
#card-screen > .topbar {
  position: absolute;
  top: max(6px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  z-index: 70;
  --min-height: 0;
  --padding-top: 0;
  --padding-bottom: 0;
  --padding-start: 14px;
  --padding-end: 14px;
  --background: transparent;
  --border-color: transparent;
  pointer-events: none;
  backdrop-filter: none;
  overflow: visible;
}

#card-screen > .topbar::part(container) {
  background: transparent !important;
  border-bottom: none !important;
  overflow: visible !important;
}

#card-screen .topbar-card-logo {
  position: relative;
  overflow: visible;
  line-height: 0;
}

/* On iPhone, keep logo closer to the top edge so it sits on (not inside) the card */
body.platform-ios #card-screen > .topbar {
  top: max(2px, env(safe-area-inset-top));
}

/* Path screen keeps a visible header; logo overlaps into scroll content */
#path-screen > .topbar {
  position: relative;
  z-index: 120;
  --background: var(--surface);
  --border-color: var(--border);
  --min-height: 150px;
  --padding-start: 14px;
  --padding-end: 14px;
  --padding-top: max(6px, env(safe-area-inset-top));
  --padding-bottom: 6px;
  overflow: visible;
}

#path-screen > .topbar::part(container) {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  overflow: visible;
}

#path-screen .topbar-card-logo {
  position: relative;
  height: auto;
  display: block;
  overflow: visible;
}

#path-screen .topbar-card-logo::part(native) {
  overflow: visible;
}

.path-header-camaleon {
  position: absolute;
  left: 8px;
  bottom: -30px;
  height: 92px;
  width: auto;
  object-fit: contain;
  pointer-events: none;
  z-index: 3;
}

ion-card.card-box {
  margin: 0;
  overflow: hidden;
}

#card-screen ion-card.card-box {
  margin-top: 64px;
  min-height: 56vh;
}

/* iOS Free-Mode: card sits lower and gets more vertical space */
body.platform-ios.mode-free #card-screen ion-card.card-box {
  margin-top: 84px;
  min-height: 60vh;
}

body.platform-ios.mode-free #card-screen ion-card.card-box::part(native) {
  min-height: 60vh;
  padding-top: 40px;
  padding-bottom: 40px;
}

@supports (height: 56dvh) {
  body.platform-ios.mode-free #card-screen ion-card.card-box {
    min-height: 60dvh;
  }

  body.platform-ios.mode-free #card-screen ion-card.card-box::part(native) {
    min-height: 60dvh;
  }
}

ion-card.card-box::part(native) {
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--border) 82%, white 18%);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
  padding: 34px 26px;
}

#card-content {
  transition: opacity 0.22s ease, transform 0.22s ease;
  will-change: opacity, transform;
  position: relative;
  padding-top: 14px;
  flex: 1;
  min-height: 0;
  justify-content: flex-start;
}

#card-content.swap-out {
  opacity: 0;
  transform: translateY(8px);
}

#card-content.swap-in {
  animation: cardContentIn 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes cardContentIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card-meaning {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.45px;
  text-transform: uppercase;
}

.card-infinitive {
  font-size: clamp(36px, 8vw, 48px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -1.2px;
  line-height: 1.06;
}

.card-infinitive-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.tts-btn {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  opacity: 0.6;
  padding: 4px 8px;
  border-radius: 8px;
  transition: opacity .15s;
  line-height: 1;
}
.tts-btn:active { opacity: 1; }

.card-divider {
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--primary) 48%, var(--border) 52%), transparent);
  border-radius: 999px;
}

.card-person {
  font-size: 17px;
  color: var(--text-muted);
  font-weight: 600;
}

.card-answer {
  font-size: clamp(28px, 6vw, 36px);
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.7px;
  opacity: 0;
  transition: opacity 0.25s;
  min-height: 48px;
}

.card-answer.visible { opacity: 1; }

.card-new-badge {
  background: #ecfdf3;
  border: 1px solid #86efac;
  color: #166534;
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ── action buttons ─────────────────────────────────────────── */

.action-area {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

.card-controls {
  min-height: 0;
  display: flex;
}

.card-controls > * {
  width: 100%;
}

.review-buttons {
  display: flex;
  gap: 10px;
}

.review-buttons ion-button {
  flex: 1;
}

/* Dezentere Think-Mode Actions */
#card-screen #reveal-btn,
#card-screen #review-btns ion-button {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
}

#card-screen #reveal-btn {
  --padding-top: 11px;
  --padding-bottom: 11px;
  --padding-start: 14px;
  --padding-end: 14px;
  --background: #f8fafc;
  --background-activated: #eef2f7;
  --color: #475569;
  --border-color: #d7dee8;
  --border-width: 1px;
}

#card-screen #review-btns ion-button {
  --padding-top: 11px;
  --padding-bottom: 11px;
  --padding-start: 12px;
  --padding-end: 12px;
  min-height: 42px;
}

#card-screen #review-btns .btn-danger {
  --background: #fff5f5;
  --background-activated: #ffe8e8;
  --color: #9b1c1c;
  --border-color: #ffd0d0;
  --border-style: solid;
  --border-width: 1px;
}

#card-screen #review-btns .btn-success {
  --background: #f2fcf6;
  --background-activated: #e4f7eb;
  --color: #166534;
  --border-color: #c8ebd8;
  --border-style: solid;
  --border-width: 1px;
}

/* ── stats bar ──────────────────────────────────────────────── */

.stats-bar {
  display: flex;
  gap: 0;
  background: color-mix(in srgb, var(--surface) 88%, white 12%);
  border: 1px solid color-mix(in srgb, var(--border) 82%, white 18%);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 4px 9px;
  gap: 2px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-muted);
  border-right: 1px solid color-mix(in srgb, var(--border) 76%, white 24%);
}
.stat-item:last-child { border-right: none; }

.stat-value {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}
.stat-item.due .stat-value    { color: #f97316; }
.stat-item.new .stat-value    { color: #a78bfa; }
.stat-item.done .stat-value   { color: var(--success); }
.stat-item.streak .stat-value { color: #fb923c; }
.stat-item.xp .stat-value     { color: #facc15; }

/* Optional second direction: stronger "learning app" look */
body.look-bold #card-screen .screen-content {
  background:
    radial-gradient(130% 52% at 50% -18%, rgba(30, 64, 175, 0.18), transparent 60%),
    radial-gradient(90% 45% at 50% 118%, rgba(147, 51, 234, 0.12), transparent 65%),
    linear-gradient(180deg, #f8fbff 0%, #f7f6ff 100%);
}

body.look-bold .card-box::part(native) {
  border-color: color-mix(in srgb, var(--primary) 28%, white 72%);
  box-shadow: 0 14px 34px rgba(59, 130, 246, 0.14);
}

body.look-bold .card-infinitive {
  color: #0f172a;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
}

body.look-bold .stats-bar {
  border-color: color-mix(in srgb, var(--primary) 24%, var(--border) 76%);
}

/* ── done screen ────────────────────────────────────────────── */

#done-screen {
  padding: 0;
}

#done-screen .screen-content::part(scroll) {
  justify-content: center;
  align-items: center;
  padding: 32px;
  gap: 24px;
}

.done-icon { font-size: 64px; }

.done-title {
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.5px;
}

.done-subtitle {
  color: var(--text-muted);
  text-align: center;
  font-size: 15px;
}

/* ── stats screen ────────────────────────────────────────────── */

#stats-screen {
  padding: 0;
}

#stats-screen .screen-content {
  --padding-start: 16px;
  --padding-end: 16px;
  --padding-bottom: 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stats-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
}

ion-card.stats-card::part(native) {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.stats-card-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.stats-card-value {
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -1px;
}

.progress-bar-wrap {
  background: var(--surface2);
  border-radius: 4px;
  height: 6px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.5s ease;
}

/* ── upgrade input (reuse input-group input style) ──────────── */

.upgrade-input {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-size: 16px;
  outline: none;
  width: 100%;
  transition: border-color 0.15s;
}
.upgrade-input:focus { border-color: var(--primary); }

/* ── level settings ─────────────────────────────────────────── */

.settings-section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  font-weight: 600;
  padding: 4px 0;
}

.settings-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 16px;
}

.level-pills {
  display: flex;
  gap: 6px;
}

.level-pill {
  flex: 1;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 4px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid var(--border);
  letter-spacing: 0.3px;
}

.level-pill.active {
  background: color-mix(in srgb, var(--primary) 12%, #ffffff 88%);
  color: color-mix(in srgb, var(--primary) 72%, #0f172a 28%);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border) 65%);
}

.level-pill.selected {
  background: color-mix(in srgb, var(--primary) 18%, #ffffff 82%);
  color: color-mix(in srgb, var(--primary) 78%, #0f172a 22%);
  border-color: color-mix(in srgb, var(--primary) 48%, var(--border) 52%);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--primary) 22%, transparent);
}

.level-pill:active { transform: scale(0.95); }

/* ── tense settings ─────────────────────────────────────────── */

.tense-group-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  font-weight: 600;
  padding: 8px 4px 4px;
}

.tense-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color 0.15s;
  gap: 12px;
}

.tense-row:active { opacity: 0.8; }
.tense-row.active {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border) 55%);
  background: color-mix(in srgb, var(--primary) 10%, #ffffff 90%);
}

.tense-row-text { flex: 1; }
.tense-row-name { font-size: 15px; font-weight: 500; color: var(--text); }
.tense-row-sub { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* Toggle switch */
.toggle {
  width: 44px;
  height: 26px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 13px;
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s;
}
.toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}
.toggle.on { background: var(--primary); border-color: var(--primary); }
.toggle.on::after { transform: translateX(18px); background: white; }

/* ── loading ────────────────────────────────────────────────── */

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── transitions ────────────────────────────────────────────── */

.fade-in { animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ── gamification toasts & overlays ─────────────────────────── */

.xp-toast {
    position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%);
    background: var(--primary); color: #fff; padding: 6px 16px;
    border-radius: 20px; font-weight: bold; animation: fadeup 2s forwards;
    pointer-events: none; z-index: 100;
}
.badge-toast {
    position: fixed; bottom: 110px; left: 50%; transform: translateX(-50%);
    background: #7c3aed; color: #fff; padding: 8px 18px;
    border-radius: 20px; animation: fadeup 3s forwards;
    pointer-events: none; z-index: 100;
}
.levelup-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,.6);
    display: flex; align-items: center; justify-content: center; z-index: 200;
}
.levelup-box {
    background: var(--surface); border-radius: 16px; padding: 32px;
    text-align: center;
}
@keyframes fadeup {
    0%   { opacity: 1; transform: translateX(-50%) translateY(0); }
    80%  { opacity: 1; }
    100% { opacity: 0; transform: translateX(-50%) translateY(-30px); }
}

/* ── screen-header (profile and similar screens) ────────────── */

.screen-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  padding-top: max(16px, env(safe-area-inset-top));
}

.screen-header h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--primary);
}

.back-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  font-size: 20px;
  transition: color 0.15s;
}
.back-btn:hover { color: var(--text); }

/* ── profile screen ─────────────────────────────────────────── */

.profile-body { padding: 16px; overflow-y: auto; flex: 1; }
.level-card { background: var(--card-bg, var(--surface)); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.level-number { font-size: 1.4rem; font-weight: bold; margin-bottom: 8px; }
.xp-bar-wrap { background: #333; border-radius: 8px; height: 10px; overflow: hidden; }
.xp-bar { height: 100%; background: var(--primary); transition: width .4s; }
.xp-label { font-size: .85rem; color: #aaa; margin-top: 4px; }
.streak-card { background: var(--card-bg, var(--surface)); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.badge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.badge-item { background: var(--card-bg, var(--surface)); border-radius: 10px; padding: 12px; text-align: center; }
.badge-item.locked { opacity: .35; }
.badge-item.earned { box-shadow: inset 0 0 0 2px var(--primary); }
.badge-icon { font-size: 2rem; }
.badge-name { font-size: .75rem; margin-top: 4px; }

/* ── path lesson bar (card screen) ───────────────────────────── */

.path-lesson-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px 4px;
}
.path-lesson-progress-wrap {
  flex: 1;
  height: 6px;
  background: #2a2d3e;
  border-radius: 3px;
  overflow: hidden;
}
.path-lesson-progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 3px;
  transition: width 0.3s ease;
}
.path-lesson-bar span {
  font-size: .75rem;
  color: #aaa;
  white-space: nowrap;
  min-width: 36px;
  text-align: right;
}

/* ── path screen ─────────────────────────────────────────────── */

.path-level-ready {
  margin: 4px 16px 0;
  background: color-mix(in srgb, var(--primary) 18%, white 82%);
  border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--border) 65%);
  color: color-mix(in srgb, var(--primary) 72%, #0f172a 28%);
  text-align: center;
  padding: 10px 14px;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 12px;
}

.path-mission {
  position: relative;
  margin: 0;
  padding: 14px 16px;
  min-height: 74px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border) 70%);
  background:
    linear-gradient(130deg,
      color-mix(in srgb, var(--primary) 14%, var(--surface) 86%),
      color-mix(in srgb, var(--primary) 5%, var(--surface) 95%));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--primary) 10%, transparent),
    0 8px 20px rgba(0,0,0,0.25);
  overflow: visible;
}

.path-mission-content {
  padding-left: 108px;
  padding-right: 84px;
}

.path-mission-wordmark {
  position: absolute;
  right: 10px;
  top: 9px;
  height: 18px;
  width: auto;
  object-fit: contain;
  pointer-events: none;
  opacity: 0.92;
}

.path-mission-kicker {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  text-align: left;
}

.path-mission-title {
  margin-top: 2px;
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.2px;
  text-align: left;
}

.path-mission-meta {
  margin-top: 3px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  text-align: left;
}

.path-nodes {
  position: relative;
  padding: 12px 0 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  background:
    radial-gradient(ellipse 70% 30% at 50% 15%,
      color-mix(in srgb, var(--primary) 7%, transparent) 0%,
      transparent 100%);
}

#path-screen .screen-content {
  --padding-start: 0;
  --padding-end: 0;
  --padding-bottom: 0;
}

.path-level-divider {
  width: 90%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 22px 20px 10px;
  z-index: 2;
}
.path-level-divider::before,
.path-level-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: color-mix(in srgb, var(--border) 86%, white 14%);
}
.path-level-divider span {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: .12em;
  background: color-mix(in srgb, var(--surface2) 90%, var(--primary) 10%);
  border: 1px solid color-mix(in srgb, var(--border) 70%, var(--primary) 30%);
  padding: 4px 14px;
  border-radius: 999px;
  white-space: nowrap;
}

.path-node-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0;
  z-index: 2;
  animation: node-enter 0.35s ease both;
  animation-delay: var(--node-delay, 0ms);
}
.path-node-wrap.left  { padding-left: 22%; }
.path-node-wrap.right { padding-right: 22%; }

.path-node {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid transparent;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  transition: transform .15s, box-shadow .18s, border-color .18s, background-color .18s;
  position: relative;
  z-index: 2;
}
.path-node:active:not(:disabled) { transform: scale(.92); }

.path-node.completed {
  background: linear-gradient(160deg, #22c55e 0%, #15803d 100%);
  border-color: #166534;
  color: #fff;
  box-shadow: 0 10px 22px rgba(22, 163, 74, 0.32);
}
.path-node.completed .node-stars {
  font-size: 14px;
  letter-spacing: 1px;
  color: #fde047;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.path-node.active {
  background: linear-gradient(160deg, color-mix(in srgb, var(--primary) 90%, white 10%), color-mix(in srgb, var(--primary) 76%, #111827 24%));
  border-color: color-mix(in srgb, var(--primary) 72%, #1f2937 28%);
  color: #fff;
  box-shadow: 0 10px 22px color-mix(in srgb, var(--primary) 32%, transparent);
}
.path-node.active.current {
  animation: pulse-node 2.1s infinite;
  box-shadow:
    0 0 0 8px color-mix(in srgb, var(--primary) 14%, transparent),
    0 14px 28px color-mix(in srgb, var(--primary) 28%, transparent);
}
.path-node.active .node-arc {
  position: absolute;
  inset: -4px;
  pointer-events: none;
}
.path-node.locked {
  background: color-mix(in srgb, var(--surface2) 78%, #e5e7eb 22%);
  border-color: color-mix(in srgb, var(--border) 78%, #d1d5db 22%);
  color: #9ca3af;
  cursor: default;
}

.path-node-label {
  font-size: .74rem;
  color: var(--text-muted);
  margin-top: 7px;
  text-align: center;
  max-width: 110px;
  font-weight: 600;
  line-height: 1.25;
}

@keyframes pulse-node {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--primary) 50%, transparent); }
  50%       { box-shadow: 0 0 0 10px color-mix(in srgb, var(--primary) 0%, transparent); }
}

@keyframes node-enter {
  from { opacity: 0; transform: scale(0.7) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* ── onboarding modal ────────────────────────────────────────── */

.onboarding-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 999;
  padding: 0 0 env(safe-area-inset-bottom, 0);
}

.onboarding-modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 32px 24px 28px;
  max-width: 480px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: slide-up .3s ease;
}

@keyframes slide-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

.onboarding-icon {
  font-size: 48px;
  text-align: center;
}

.onboarding-title {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  color: var(--text);
}

.onboarding-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  text-align: center;
}

.onboarding-text strong {
  color: var(--text);
}

.onboarding-hint {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.onboarding-hint strong {
  color: var(--text);
}

.onboarding-hint-icon {
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Type Input ──────────────────────────────────────────────── */

.type-input {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.type-input-boxes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
}

.type-input-box {
  width: 32px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

.type-input-box.space {
  width: 24px;
  color: var(--text-muted);
  opacity: 0.5;
}

.type-input-box.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(108, 99, 255, 0.3);
}

.type-input-box.correct {
  background: rgba(34, 197, 94, 0.15);
  border-color: var(--success);
  color: var(--success);
}

.type-input-box.wrong {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--danger);
  color: var(--danger);
  animation: shake 0.3s ease;
}

.type-input-box.hinted {
  background: rgba(251, 146, 60, 0.15);
  border-color: #fb923c;
  color: #fb923c;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

.type-input-hidden {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
}

.type-input-hint {
  font-size: 14px;
  padding: 8px 16px;
}

/* Accent hint message */
.type-input-accent-hint {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  padding: 8px 12px;
  background: var(--surface);
  border-radius: var(--radius-sm);
}

.type-input-accent-hint strong {
  color: #fb923c;
}

/* ── Modal Overlay (generic) ────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

/* ── Session Picker Modal ────────────────────────────────────── */

.session-picker-modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  width: min(94vw, 360px);
  max-width: 360px;
  text-align: center;
  box-sizing: border-box;
}

.session-picker-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
}

.session-picker-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  margin-bottom: 16px;
}

.session-picker-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  background: var(--surface2);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  margin: 0;
}

ion-button.session-picker-btn {
  --background: var(--surface2);
  --color: var(--text);
  --border-color: var(--border);
  --border-style: solid;
  --border-width: 2px;
  --border-radius: var(--radius-sm);
  --padding-start: 8px;
  --padding-end: 8px;
  --padding-top: 10px;
  --padding-bottom: 10px;
  width: 100%;
  min-height: 74px;
  margin: 0;
  font-size: 13px;
}

ion-button.session-picker-btn::part(native) {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.session-picker-btn:hover,
ion-button.session-picker-btn:hover {
  border-color: var(--primary);
  background: var(--primary-dim);
  --border-color: var(--primary);
  --background: var(--primary-dim);
}

.session-picker-icon {
  font-size: 22px;
}

.session-picker-remember {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
}

.session-picker-remember input {
  accent-color: var(--primary);
}

/* ── Multiple Choice ────────────────────────────────────────── */

.mc-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
}

.mc-option {
  padding: 14px 20px;
  background: var(--surface2);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
  min-height: 48px;
}

@media (hover: hover) {
  .mc-option:hover:not(:disabled) {
    border-color: var(--primary);
    background: var(--primary-dim);
  }
}

.mc-option:disabled {
  cursor: default;
}

.mc-option.correct {
  background: rgba(34, 197, 94, 0.2);
  border-color: var(--success);
  color: var(--success);
}

.mc-option.wrong {
  background: rgba(239, 68, 68, 0.2);
  border-color: var(--danger);
  color: var(--danger);
  animation: shake 0.3s ease;
}