:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --border: #e5e7eb;
  --border-soft: rgba(199, 210, 254, 0.5);
  --text: #111827;
  --muted: #6b7280;
  --primary: #4f46e5;
  --primary-soft: #eef2ff;
  --danger: #dc2626;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 20px 46px rgba(79, 70, 229, 0.08), 0 10px 24px rgba(15, 23, 42, 0.05);
  --surface: linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(248,250,255,.98) 100%);
  --surface-soft: linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(243,247,255,.92) 100%);
  --radius: 24px;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
body { min-height: 100vh; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
#app { min-height: 100vh; }
.loading-screen { min-height: 100vh; display: grid; place-items: center; font-size: 1.1rem; color: var(--muted); }
.shell { padding: 24px; max-width: 1280px; margin: 0 auto; }
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 8px 12px; border: 1px solid rgba(199,210,254,.38); background: rgba(255,255,255,0.88);
  border-radius: 999px; backdrop-filter: blur(14px); position: static; top: auto; z-index: 20; box-shadow: 0 12px 28px rgba(15, 23, 42, 0.05);
}
.brand-row { display: flex; align-items: center; gap: 10px; }
.brand-row strong { font-size: 1rem; letter-spacing: -0.02em; }
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: white;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(79,70,229,.2);
}
.top-tabs { display: flex; flex-wrap: wrap; gap: 6px; flex: 1 1 auto; min-width: 0; }
.top-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.nav-pill, .flag-btn, .segment, .ghost-button, .secondary-button, .primary-button {
  display: inline-flex; align-items: center; justify-content: center; white-space: nowrap;
  border: 1px solid rgba(199,210,254,.34); background: rgba(255,255,255,.94); color: var(--text); padding: 7px 12px; border-radius: 999px; transition: .2s ease; min-height: 36px; font-size: .92rem;
}
.nav-pill.active, .segment.active, .flag-btn.active { background: var(--primary-soft); border-color: #c7d2fe; color: var(--primary); }
.flag-group { display: flex; gap: 8px; }
.flag-btn { width: 36px; height: 36px; padding: 0; font-size: .96rem; }
.ghost-button:hover, .secondary-button:hover, .nav-pill:hover, .flag-btn:hover, .segment:hover { transform: translateY(-1px); }
.primary-button { background: var(--primary); color: white; border-color: transparent; box-shadow: 0 10px 25px rgba(79,70,229,.25); }
.primary-button.big { font-size: 1rem; padding: 14px 18px; }
.primary-button.wide { width: 100%; }
.secondary-button { background: var(--primary-soft); color: var(--primary); }
.ghost-button.danger { color: var(--danger); }
.main-content { padding-top: 24px; }
.hero-card, .page-card, .auth-card {
  background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); box-shadow: var(--shadow-soft);
}
.hero-card { padding: 32px; display: grid; gap: 22px; }
.page-card { padding: 24px; }
.home-dashboard {
  gap: 16px;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,255,.98));
}
.home-hero-shell {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(240px, 0.82fr);
  gap: 18px;
  align-items: end;
  border: 1px solid rgba(199,210,254,.55);
  border-radius: 24px;
  padding: 26px 28px 22px;
  background:
    radial-gradient(circle at top left, rgba(99,102,241,.08), transparent 34%),
    linear-gradient(180deg, rgba(240,244,255,.88) 0%, rgba(247,249,255,.92) 46%, rgba(255,255,255,.98) 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.72);
}
.home-hero-copy {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  justify-items: start;
  text-align: left;
  max-width: 40rem;
}
.home-hero-copy h1 {
  margin: 0;
  font-size: clamp(1.55rem, 2.3vw, 2.05rem);
  line-height: .98;
  letter-spacing: -0.045em;
  max-width: 14ch;
  background: linear-gradient(90deg, #4361ee 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.home-hero-copy p { margin: 0; max-width: 31ch; font-size: .9rem; line-height: 1.45; }
.home-hero-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.home-hero-side {
  display: grid;
  gap: 12px;
  align-content: end;
}
.home-hero-stat {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(244,247,255,.9));
}
.home-hero-stat strong {
  font-size: 1.08rem;
  line-height: 1.05;
}
.home-dashboard-grid { display: grid; gap: 16px; }
.home-primary-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr); align-items: stretch; }
.home-secondary-grid, .home-quick-grid { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.home-quick-grid-compact { grid-template-columns: 1fr; }
.home-actions-stack, .home-settings-card, .home-action-card, .home-card-copy, .install-card-copy { display: grid; gap: 12px; }
.home-card-title { font-size: 1.12rem; line-height: 1.2; }
.home-section-label { font-size: .84rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: .04em; }
.home-card-copy p, .install-card-copy span { margin: 0; }
.home-card-meta {
  letter-spacing: -0.01em;
}
.home-settings-card, .home-action-card {
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(249,250,255,.98) 100%);
  border: 1px solid rgba(148,163,184,.18);
}
.home-settings-copy { gap: 8px; }
.home-settings-grid { gap: 12px; }
.home-settings-actions { padding-top: 4px; }
.home-settings-actions .primary-button { min-width: 170px; }
.home-action-card { align-content: start; }
.home-action-card.compact { min-height: 100%; }
.home-action-card.feature {
  padding: 20px 18px;
  justify-content: space-between;
}
.home-action-card.accent {
  border-color: rgba(99,102,241,.24);
  background: linear-gradient(145deg, rgba(79,70,229,.12), rgba(96,165,250,.08) 62%, rgba(255,255,255,.98));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.76);
}
.home-chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.home-install-card {
  margin-top: 2px;
  border-style: solid;
  border-color: rgba(199,210,254,.38);
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(244,247,255,.94));
}

.page-stack { display: grid; gap: 16px; }
.narrow-stack { max-width: 920px; }
.page-intro {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(199,210,254,.38);
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.09), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(243,247,255,.94));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.76), 0 14px 32px rgba(79,70,229,.05);
}
.page-intro.compact { padding: 16px 18px; }
.page-intro.minimal {
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
}
.page-intro-main { display: grid; gap: 10px; min-width: 0; min-height: 58px; }
.page-intro-copy { display: grid; gap: 6px; }
.page-intro-eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(79,70,229,.08);
  color: var(--primary);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.page-intro-title {
  margin: 0;
  font-size: clamp(1.42rem, 2.5vw, 1.95rem);
  line-height: .98;
  letter-spacing: -0.045em;
  max-width: 16ch;
  min-height: 1.2em;
  background: linear-gradient(90deg, #4361ee 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-intro.compact .page-intro-title { font-size: clamp(1.28rem, 2.15vw, 1.68rem); }
.page-intro.minimal .page-intro-main { gap: 8px; }
.page-intro.minimal .page-intro-title {
  font-size: clamp(1.16rem, 1.85vw, 1.48rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: none;
}
.page-intro-text { margin: 0; max-width: 44ch; line-height: 1.5; }
.page-intro-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-intro.minimal .page-intro-meta { gap: 6px; }
.page-intro-chip {
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(199,210,254,.34);
}
.page-intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: flex-start;
  justify-content: flex-end;
}
.form-page-card,
.progress-summary-card,
.legal-route-card {
  display: grid;
  gap: 16px;
}
.surface-title {
  margin: 0;
  font-size: clamp(1.08rem, 2vw, 1.34rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}
.form-shell-grid,
.account-shell-grid,
.admin-content-grid,
.progress-detail-grid,
.words-detail-grid {
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  align-items: start;
}
.form-side-card,
.account-spotlight-card,
.admin-filter-card,
.admin-side-card {
  display: grid;
  gap: 14px;
  align-content: start;
  align-self: start;
  background:
    radial-gradient(circle at top left, rgba(99,102,241,.08), transparent 36%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(243,247,255,.95));
}
.form-side-copy,
.form-note-grid,
.account-quick-grid {
  display: grid;
  gap: 12px;
}
.form-side-card .surface-title {
  max-width: 20ch;
  line-height: 1.22;
}
.form-note-card {
  gap: 8px;
  padding: 14px;
  border-radius: 18px;
}
.form-note-card p {
  margin: 0;
}
.form-chip-row { gap: 8px; }
.form-main-card { gap: 16px; }
.account-stack { display: grid; gap: 18px; }
.account-form-stack {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}
.account-card,
.account-danger-card,
.admin-summary-card,
.admin-feed-card,
.admin-stage-card,
.words-detail-list-card,
.words-detail-library-card,
.progress-list-card,
.words-toolbar-card {
  display: grid;
  gap: 16px;
}
.account-spotlight-card .surface-title { max-width: 16ch; }
.account-danger-card {
  border-color: rgba(239,68,68,.22);
  background:
    radial-gradient(circle at top right, rgba(248,113,113,.10), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(254,242,242,.92));
}
.progress-summary-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.progress-summary-copy {
  display: grid;
  gap: 8px;
  max-width: 38rem;
}
.progress-focus-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border: 1px solid rgba(199,210,254,.36);
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.18), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,248,255,.96));
}
.progress-focus-copy {
  display: grid;
  gap: 8px;
}
.progress-focus-side {
  display: grid;
  gap: 10px;
  justify-items: end;
}
.progress-focus-stat {
  display: grid;
  gap: 2px;
  min-width: 116px;
  padding: 10px 12px;
  border-radius: 18px;
  border: 1px solid rgba(199,210,254,.34);
  background: rgba(255,255,255,.82);
  text-align: center;
}
.progress-focus-stat strong {
  font-size: 1.35rem;
  line-height: 1;
}
.progress-focus-stat span {
  font-size: .82rem;
  color: var(--muted);
}
.progress-stats-grid,
.admin-feedback-stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.progress-meter-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.progress-meter-card { gap: 12px; }
.progress-meter-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.progress-meter-head strong { font-size: 1.45rem; }
.progress-meter-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(199,210,254,.38);
  overflow: hidden;
}
.progress-meter-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #4f46e5, #7c3aed);
}
.progress-meter-card.hard .progress-meter-fill {
  background: linear-gradient(90deg, #8b5cf6, #ec4899);
}
.admin-content-grid {
  grid-template-columns: 1fr;
}
.admin-editor-card {
  gap: 18px;
  padding: 18px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.10), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,248,255,.95));
}
.admin-editor-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  align-items: start;
}
.admin-editor-main,
.admin-editor-side {
  display: grid;
  gap: 16px;
}
.admin-editor-actions {
  padding-top: 4px;
}
.admin-stage-card {
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.08), transparent 36%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(244,247,255,.95));
}
.admin-stage-card .word-list { align-content: start; }
.admin-filter-card .grid.two {
  align-items: end;
}
.admin-side-card .stats-grid {
  gap: 12px;
}
.words-toolbar-card {
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.07), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(243,247,255,.94));
}
.words-detail-actions {
  justify-content: space-between;
}
.words-detail-meta {
  padding-top: 2px;
}
.words-detail-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
}
.words-detail-list-card .word-list,
.words-detail-library-card .word-list {
  align-content: start;
}
.feature-editor-card {
  padding: 18px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.10), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,248,255,.95));
}

.page-card[data-testid="study-page"] {
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(250,251,255,0.98));
}
.narrow-card { max-width: 820px; }
.auth-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: min(560px, 100%); padding: 28px; display: grid; gap: 18px; }
.auth-card-clean { align-content: start; }
.auth-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.auth-copy { display: grid; gap: 10px; }
.auth-copy h1 { margin: 0; font-size: clamp(2rem, 5vw, 3rem); line-height: 1.08; }
.auth-copy p { margin: 0; max-width: 44ch; }
.auth-flags { justify-content: flex-end; }
.auth-language-line { min-height: 46px; display: flex; align-items: center; padding: 0 14px; border: 1px solid rgba(199,210,254,.32); border-radius: 16px; background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(248,250,255,.96)); }
.mini-stat, .stat-card { padding: 16px; background: var(--surface-soft); border: 1px solid rgba(199,210,254,.32); border-radius: 18px; display: grid; gap: 8px; min-width: 0; box-shadow: inset 0 1px 0 rgba(255,255,255,.68); }
.mini-stat strong, .stat-card strong { font-size: 1.35rem; }
.mini-stat span, .stat-card span { min-width: 0; line-height: 1.35; overflow-wrap: anywhere; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.eyebrow { display: inline-flex; padding: 6px 12px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: .86rem; font-weight: 600; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.page-grid { display: grid; gap: 20px; grid-template-columns: 1.2fr .8fr; align-items: start; }
.page-grid.single-gap { grid-template-columns: 1fr; }
.page-grid.form-shell-grid { grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); }
.page-grid.account-shell-grid { grid-template-columns: minmax(0, 1.16fr) minmax(300px, 0.84fr); }
.page-grid.admin-content-grid { grid-template-columns: 1fr; }
.page-grid.progress-detail-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.page-grid.words-detail-grid { grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr); }
.field { display: grid; gap: 8px; }
.field.compact span { font-size: .86rem; color: var(--muted); }
.input { width: 100%; min-height: 46px; border-radius: 16px; border: 1px solid rgba(199,210,254,.34); padding: 0 14px; background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(249,250,255,.98)); box-shadow: inset 0 1px 0 rgba(255,255,255,.66); }
.textarea { min-height: 100px; padding: 14px; resize: vertical; }
.textarea.large { min-height: 180px; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; }
.action-row { display: flex; flex-wrap: wrap; gap: 10px; }
.action-row.center { justify-content: center; }
.install-card { display: grid; gap: 8px; border: 1px dashed #c7d2fe; background: #fafaff; border-radius: 18px; padding: 16px; }
.install-card.install-card-compact { grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 14px; }

.pair-field { gap: 10px; }
.pair-picker { display: flex; flex-wrap: wrap; gap: 8px; }
.pair-pill {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  padding: 9px 12px;
  border-radius: 999px;
  transition: .2s ease;
}
.pair-pill.active { background: var(--primary-soft); border-color: #c7d2fe; color: var(--primary); }
.pair-pill:hover { transform: translateY(-1px); }
.study-pair-block { display: grid; gap: 8px; }
.study-pair-title { font-size: .86rem; color: var(--muted); }
.words-head h2, .section-head h2 { margin: 0; }
.section-head h3 { margin: 0; font-size: 1.02rem; }
.study-controls { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; align-items: end; }
.segmented { display: inline-flex; gap: 8px; flex-wrap: wrap; }
.study-meta { text-align: center; margin: 8px 0 16px; }
.flashcard {
  width: 100%; min-height: 320px; border: 1px solid #d8e2ff; border-radius: 30px;
  background:
    radial-gradient(circle at top left, rgba(99,102,241,.14), transparent 34%),
    radial-gradient(circle at bottom right, rgba(14,165,233,.12), transparent 34%),
    linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  padding: 28px; display: grid; place-items: center; text-align: center;
  box-shadow: 0 24px 60px rgba(79,70,229,.12), 0 12px 24px rgba(15,23,42,.05), inset 0 1px 0 rgba(255,255,255,.72);
}
.flashcard.flipped {
  border-color: #c7d2fe;
  background:
    radial-gradient(circle at top right, rgba(59,130,246,.16), transparent 36%),
    radial-gradient(circle at bottom left, rgba(139,92,246,.14), transparent 32%),
    linear-gradient(180deg, #ffffff 0%, #f6f6ff 100%);
}
.flash-face { width: 100%; max-width: min(640px, 100%); min-width: 0; display: grid; gap: 14px; justify-items: center; }
.flash-label { display: inline-flex; justify-content: center; padding: 6px 12px; border-radius: 999px; background: #eef2ff; color: var(--primary); font-size: .82rem; font-weight: 600; }
.flash-face strong { max-width: 100%; font-size: clamp(1.8rem, 4vw, 3.2rem); line-height: 1.1; overflow-wrap: anywhere; word-break: break-word; hyphens: auto; }
.flash-face p { max-width: 100%; margin: 0; color: var(--muted); font-size: 1rem; line-height: 1.55; overflow-wrap: anywhere; word-break: break-word; }
.flash-face small { color: var(--muted); }
.status-pill { margin: 18px auto; width: fit-content; min-width: 84px; text-align: center; padding: 8px 14px; border-radius: 999px; background: #f3f4f6; color: var(--muted); }
.status-pill.learned { background: #dcfce7; color: #166534; }
.status-pill.hard { background: #fee2e2; color: #991b1b; }
.word-list, .admin-list { display: grid; gap: 12px; }
.word-card { display: flex; justify-content: space-between; gap: 12px; border: 1px solid rgba(199,210,254,.3); border-radius: 18px; padding: 14px; background: var(--surface-soft); box-shadow: inset 0 1px 0 rgba(255,255,255,.72); }
.admin-item {
  display: grid;
  grid-template-columns: minmax(180px, 240px) minmax(0, 1fr) auto;
  gap: 12px 18px;
  align-items: start;
  border: 1px solid rgba(199,210,254,.3);
  border-radius: 18px;
  padding: 14px;
  background: var(--surface-soft);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.72);
  min-width: 0;
}
.admin-item-head { display: grid; gap: 6px; min-width: 0; }
.admin-item-head strong,
.admin-item-head span,
.admin-item-message,
.admin-item-time { min-width: 0; overflow-wrap: anywhere; word-break: break-word; }
.admin-item-message { margin: 0; }
.admin-item-time { justify-self: end; text-align: right; }
.word-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 6px; }
.chip { display: inline-flex; padding: 4px 10px; border-radius: 999px; background: #f3f4f6; color: var(--muted); font-size: .78rem; }
.chip.custom { background: #eef2ff; color: var(--primary); }
.stats-grid { display: grid; gap: 14px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stats-grid.progress-stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stats-grid.admin-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.monitoring-detail-grid { grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr); align-items: start; }
.contact-stats-grid { grid-template-columns: 1fr; }
.sticky-card { position: sticky; top: 110px; align-self: start; }
.clickable { cursor: pointer; }
.toast {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); background: #111827; color: white;
  padding: 12px 16px; border-radius: 999px; box-shadow: var(--shadow); z-index: 50;
}


.auth-form { display: grid; gap: 16px; }
.auth-message { border-radius: 16px; padding: 12px 14px; font-size: .96rem; border: 1px solid transparent; }
.auth-message.error { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.auth-message.success { background: #ecfdf5; color: #166534; border-color: #bbf7d0; }
.field-error { color: var(--danger); font-size: .88rem; line-height: 1.4; }
.field-hint { color: var(--muted); font-size: .84rem; line-height: 1.4; }
.input-error { border-color: #fca5a5; box-shadow: 0 0 0 3px rgba(252, 165, 165, 0.18); }
button:disabled { opacity: .7; cursor: not-allowed; transform: none !important; }

@media (max-width: 960px) {
  .shell { padding: 16px; }
  .topbar { border-radius: 28px; flex-wrap: wrap; justify-content: center; }
  .top-tabs { justify-content: center; }
  .page-grid, .grid.two, .study-controls, .stats-grid, .stats-grid.admin-grid, .home-dashboard-grid, .home-primary-grid, .home-secondary-grid, .home-quick-grid { grid-template-columns: 1fr; }
  .page-grid.form-shell-grid,
  .page-grid.account-shell-grid,
  .page-grid.admin-content-grid,
  .page-grid.progress-detail-grid,
  .page-grid.words-detail-grid {
    grid-template-columns: 1fr;
  }
  .home-hero-shell,
  .account-form-stack { grid-template-columns: 1fr; }
  .sticky-card { position: static; }
  .top-actions { width: 100%; justify-content: center; }
  .page-intro { grid-template-columns: 1fr; }
  .page-intro-actions { justify-content: flex-start; }
  .progress-meter-grid { grid-template-columns: 1fr; }
  .progress-focus-card { grid-template-columns: 1fr; }
  .progress-focus-side { justify-items: start; }
}

@media (max-width: 640px) {
  .auth-card, .hero-card, .page-card { padding: 18px; border-radius: 22px; }
  .topbar { padding: 14px; }
  .word-card { flex-direction: column; }
  .admin-item { grid-template-columns: 1fr; }
  .admin-item-time { justify-self: start; text-align: left; }
  .flashcard { min-height: 260px; padding: 20px; }
  .home-dashboard { gap: 14px; padding: 18px; }
  .home-dashboard-compact { gap: 14px; }
  .home-hero-shell { padding: 18px 16px 16px; border-radius: 20px; }
  .home-hero-copy { gap: 6px; }
  .home-hero-copy h1 { font-size: clamp(1.4rem, 7vw, 1.82rem); max-width: 10ch; }
  .home-hero-copy p { font-size: .9rem; max-width: 24ch; }
  .home-hero-meta { gap: 6px; }
  .home-hero-side { gap: 10px; }
  .home-dashboard-grid { gap: 14px; }
  .home-settings-card, .home-action-card { gap: 10px; padding: 14px; }
  .home-settings-card .grid.two { gap: 12px; }
  .home-settings-actions .primary-button { width: 100%; }
  .home-card-title { font-size: 1rem; }
  .home-action-card .home-card-copy { gap: 8px; }
  .home-chip-row { gap: 6px; }
  .home-chip-row .chip { font-size: .74rem; padding: 4px 8px; }
  .home-action-card .action-row { display: grid; grid-template-columns: 1fr; gap: 8px; }
  .home-action-card .action-row .primary-button,
  .home-action-card .action-row .secondary-button,
  .home-action-card .action-row .ghost-button { width: 100%; justify-content: center; }
  .install-card.install-card-compact { grid-template-columns: 1fr; }
  .page-intro { padding: 14px 16px; gap: 12px; }
  .page-intro-title { font-size: 1.2rem; max-width: 11ch; }
  .page-intro-text { font-size: .92rem; max-width: 28ch; }
  .page-intro.minimal { padding: 12px 14px; }
  .page-intro.minimal .page-intro-title { font-size: 1.08rem; }
  .words-toolbar-card,
  .words-detail-list-card,
  .words-detail-library-card,
  .account-card,
  .account-danger-card,
  .admin-stage-card,
  .admin-filter-card,
  .admin-summary-card,
  .admin-feed-card,
  .admin-side-card,
  .form-side-card,
  .form-main-card,
  .progress-list-card,
  .progress-summary-card {
    gap: 14px;
  }
  .words-toolbar-card .action-row,
  .account-danger-card .action-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .words-toolbar-card .action-row .ghost-button.danger {
    grid-column: 1 / -1;
  }
  .form-note-grid,
  .account-quick-grid {
    grid-template-columns: 1fr;
  }
  .feature-editor-card,
  .admin-editor-card {
    padding: 16px;
  }
  .library-word-card {
    padding: 12px;
    gap: 8px;
  }
  .library-word-card .action-row .secondary-button,
  .library-word-card .action-row .ghost-button {
    min-height: 34px;
    padding: 6px 10px;
    font-size: .84rem;
  }
}

@media (max-width: 640px) {
  .auth-head { flex-direction: column; align-items: stretch; }
  .auth-flags { justify-content: flex-start; }
}


.empty-card { cursor: default; }
.empty-face { gap: 12px; }
.empty-face strong { font-size: 1.8rem; }

/* Mobile-first polish for store builds */
html, body { overscroll-behavior-y: contain; }
body { padding-bottom: env(safe-area-inset-bottom, 0px); }
.shell { padding-top: max(16px, env(safe-area-inset-top, 0px)); }
.shell.shell-compact-study .main-content { padding-top: 18px; }

.topbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  border-radius: 22px;
}
.topbar-main-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.topbar-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.topbar-mobile-actions { display: none; align-items: center; gap: 8px; }
.topbar-mobile-actions.is-visible { display: flex; }
.topbar-current-pill { display: inline-flex; align-items: center; justify-content: center; padding: 8px 12px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: .86rem; font-weight: 600; }
.ghost-icon-button {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(199,210,254,.34);
  border-radius: 12px;
  background: rgba(255,255,255,.94);
  color: var(--text);
  font-size: 1rem;
  display: inline-grid;
  place-items: center;
}
.ghost-icon-button:hover { transform: translateY(-1px); }
.study-page-card {
  background: linear-gradient(180deg, #ffffff 0%, #fbfcff 100%);
}
.study-layout {
  display: grid;
  grid-template-columns: minmax(230px, 296px) minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}
.study-side-panel {
  display: grid;
  gap: 10px;
  align-content: start;
}
.study-controls-stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: stretch;
}
.study-direction-block {
  display: grid;
  gap: 6px;
}
.study-direction-caption {
  padding-inline: 2px;
}
.study-settings-card {
  display: grid;
  gap: 12px;
  padding: 12px;
  border: 1px solid rgba(208, 217, 255, 0.56);
  border-radius: 20px;
  background: rgba(255,255,255,.82);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.88);
}
.study-settings-section {
  display: grid;
  gap: 6px;
  padding-top: 10px;
  border-top: 1px solid rgba(208, 217, 255, 0.42);
}
.study-inline-label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.study-filters { width: 100%; }
.study-source-tabs .segment {
  min-width: 112px;
}
.study-mode-toggle,
.study-presentation-toggle {
  gap: 8px;
}
.study-presentation-toggle { margin-top: -1px; }
.study-progress-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  padding-top: 10px;
  border-top: 1px solid rgba(208, 217, 255, 0.42);
}
.study-progress-card strong {
  font-size: 1rem;
  letter-spacing: -0.02em;
}
.study-progress-card span {
  font-size: .9rem;
}
.study-card-zone { display: grid; gap: 12px; }
.study-controls-shell {
  display: grid;
  gap: 10px;
}
.study-footer-card {
  display: grid;
  gap: 10px;
  padding: 12px 14px 10px;
  border: 1px solid rgba(208, 217, 255, 0.48);
  border-radius: 20px;
  background: rgba(255,255,255,.74);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9);
}
.study-audio-row,
.study-grade-row,
.study-utility-row {
  gap: 8px;
}
.study-audio-row .secondary-button,
.study-audio-row .ghost-button {
  min-width: 118px;
  justify-content: center;
}
.study-audio-primary {
  box-shadow: inset 0 1px 0 rgba(255,255,255,.88);
}
.study-audio-secondary {
  background: rgba(255,255,255,.42);
}
.flashcard {
  min-height: 384px;
  border: 1px solid rgba(99, 102, 241, 0.14);
  border-radius: 30px;
  background:
    radial-gradient(circle at top left, rgba(79,70,229,.11), transparent 30%),
    radial-gradient(circle at bottom right, rgba(14,165,233,.08), transparent 34%),
    linear-gradient(145deg, #ffffff 0%, #fafcff 52%, #f5f9ff 100%);
  box-shadow: 0 12px 32px rgba(79, 70, 229, 0.06), 0 6px 16px rgba(15, 23, 42, 0.04), inset 0 1px 0 rgba(255,255,255,0.96);
}
.flashcard.flipped {
  border-color: rgba(79, 70, 229, 0.18);
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.12), transparent 30%),
    radial-gradient(circle at bottom left, rgba(6,182,212,.1), transparent 34%),
    linear-gradient(145deg, #ffffff 0%, #f8f7ff 46%, #f4f9ff 100%);
}
.flashcard.speak-mode {
  background:
    radial-gradient(circle at top left, rgba(79,70,229,.11), transparent 26%),
    radial-gradient(circle at bottom right, rgba(6,182,212,.08), transparent 34%),
    linear-gradient(145deg, #ffffff 0%, #fafcff 46%, #f5fbff 100%);
}
.flashcard.typing-mode {
  background:
    radial-gradient(circle at top left, rgba(79,70,229,.11), transparent 26%),
    radial-gradient(circle at bottom right, rgba(34,197,94,.08), transparent 34%),
    linear-gradient(145deg, #ffffff 0%, #fafcff 46%, #f8fffb 100%);
}
.flash-label {
  background: rgba(79,70,229,.10);
  border: 1px solid rgba(99,102,241,.14);
}
.flashcard.speak-mode .flash-face strong {
  font-size: clamp(1.5rem, 3.6vw, 2.6rem);
}
.flashcard.speak-mode .flash-face small {
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
}
.study-action-row {
  padding-top: 4px;
}
.review-grade-button {
  min-width: 96px;
  border-color: rgba(208, 217, 255, 0.7);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
}
.review-grade-button[data-grade="hard"] {
  background: rgba(254, 243, 199, 0.7);
  color: #a16207;
  border-color: rgba(245, 158, 11, 0.22);
}
.review-grade-button[data-grade="good"] {
  background: rgba(224, 231, 255, 0.72);
  color: #4338ca;
  border-color: rgba(99, 102, 241, 0.22);
}
.study-utility-bar {
  display: grid;
  gap: 8px;
  justify-items: center;
  padding-top: 8px;
  border-top: 1px solid rgba(208, 217, 255, 0.34);
}
.study-utility-row .ghost-button {
  min-width: 108px;
  background: rgba(255,255,255,.38);
  border-color: rgba(208, 217, 255, 0.42);
}
.study-status-inline {
  margin: 0;
}
.study-shortcut-hint {
  text-align: center;
  margin-top: 0;
  font-size: .8rem;
  opacity: .88;
}
.study-typing-panel {
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid rgba(199,210,254,.36);
  border-radius: 22px;
  background: rgba(255,255,255,.82);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9);
}
.study-typing-field { margin: 0; }
.study-typing-actions {
  justify-content: center;
}
.study-typing-actions .secondary-button,
.study-typing-actions .ghost-button {
  min-width: 160px;
  justify-content: center;
}
.study-typing-feedback {
  margin: 0 auto;
  width: fit-content;
  min-width: 130px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 600;
}
.study-typing-feedback.correct {
  background: #dcfce7;
  color: #166534;
}
.study-typing-feedback.incorrect {
  background: #fee2e2;
  color: #991b1b;
}
.study-speak-panel {
  display: grid;
  gap: 10px;
  justify-items: center;
  padding: 14px 16px;
  border: 1px solid rgba(199,210,254,.36);
  border-radius: 22px;
  background: rgba(255,255,255,.82);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9);
}
.study-speak-button {
  min-width: 176px;
  justify-content: center;
  position: relative;
  isolation: isolate;
  overflow: visible;
  gap: 12px;
}
.study-speak-button.listening {
  opacity: 1;
  color: #312e81;
  border-color: rgba(79, 70, 229, 0.7);
  background: linear-gradient(180deg, rgba(196, 181, 253, 0.96), rgba(165, 180, 252, 0.94));
  box-shadow: 0 16px 28px rgba(79, 70, 229, 0.28), 0 0 0 2px rgba(129, 140, 248, 0.24);
  animation: speak-button-vibrate .42s linear infinite, speak-button-pulse 1.1s ease-out infinite;
}
.study-speak-button.listening::before,
.study-speak-button.listening::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 999px;
  border: 2px solid rgba(99, 102, 241, 0.3);
  pointer-events: none;
  z-index: -1;
  animation: speak-button-ring 1.1s ease-out infinite;
}
.study-speak-button.listening::after {
  inset: -14px;
  border-width: 1px;
  border-color: rgba(129, 140, 248, 0.22);
  animation-delay: .18s;
}
.study-speak-button-label {
  position: relative;
  z-index: 1;
}
.study-speak-indicator {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  min-height: 18px;
  position: relative;
  z-index: 1;
}
.study-speak-indicator span {
  width: 4px;
  border-radius: 999px;
  background: rgba(49, 46, 129, 0.96);
  box-shadow: 0 0 12px rgba(79, 70, 229, 0.34);
  transform-origin: center bottom;
  animation: speak-indicator-wave .58s ease-in-out infinite;
}
.study-speak-indicator span:nth-child(1) {
  height: 10px;
  animation-delay: 0s;
}
.study-speak-indicator span:nth-child(2) {
  height: 16px;
  animation-delay: .12s;
}
.study-speak-indicator span:nth-child(3) {
  height: 12px;
  animation-delay: .24s;
}
@keyframes speak-button-vibrate {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  10% { transform: translate3d(-2px, 0, 0) rotate(-1deg); }
  20% { transform: translate3d(2px, 1px, 0) rotate(1deg); }
  30% { transform: translate3d(-3px, -1px, 0) rotate(-1.25deg); }
  40% { transform: translate3d(3px, 1px, 0) rotate(1.25deg); }
  50% { transform: translate3d(-2px, 1px, 0) rotate(-0.9deg); }
  60% { transform: translate3d(2px, -1px, 0) rotate(0.9deg); }
  70% { transform: translate3d(-1px, 1px, 0) rotate(-0.55deg); }
  80% { transform: translate3d(1px, -1px, 0) rotate(0.55deg); }
}
@keyframes speak-button-pulse {
  0% {
    box-shadow: 0 16px 28px rgba(79, 70, 229, 0.28), 0 0 0 0 rgba(99, 102, 241, 0.48);
    filter: saturate(1);
  }
  55% {
    box-shadow: 0 18px 34px rgba(79, 70, 229, 0.34), 0 0 0 14px rgba(99, 102, 241, 0);
    filter: saturate(1.18);
  }
  100% {
    box-shadow: 0 16px 28px rgba(79, 70, 229, 0.28), 0 0 0 0 rgba(99, 102, 241, 0);
    filter: saturate(1);
  }
}
@keyframes speak-button-ring {
  0% {
    opacity: .88;
    transform: scale(.96);
  }
  100% {
    opacity: 0;
    transform: scale(1.14);
  }
}
@keyframes speak-indicator-wave {
  0%, 100% {
    transform: scaleY(.72);
    opacity: .7;
  }
  50% {
    transform: scaleY(1.45);
    opacity: 1;
  }
}
@media (prefers-reduced-motion: reduce) {
  .study-speak-button.listening {
    animation: none;
  }
  .study-speak-button.listening::before,
  .study-speak-button.listening::after,
  .study-speak-indicator span {
    animation: none;
  }
}
.study-speak-feedback {
  margin: 0 auto;
  width: fit-content;
  min-width: 180px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 600;
  text-align: center;
}
.study-speak-feedback.correct {
  background: #dcfce7;
  color: #166534;
}
.study-speak-feedback.incorrect {
  background: #fee2e2;
  color: #991b1b;
}
.study-speak-heard {
  text-align: center;
}

.topbar.force-collapsible {
  padding: 10px 12px;
  gap: 10px;
}
.topbar.force-collapsible .topbar-panel {
  display: none;
  width: 100%;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
  padding-top: 2px;
}
.topbar.force-collapsible.mobile-open .topbar-panel {
  display: grid;
}
.topbar.force-collapsible .top-tabs {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.topbar.force-collapsible .top-actions {
  width: 100%;
  justify-content: space-between;
  flex-wrap: nowrap;
}

@media (min-width: 961px) {
  .menu-toggle, .compact-toggle { display: none; }
}

@media (max-width: 960px) {
  .topbar {
    padding: 10px 12px;
    border-radius: 24px;
  }
  .topbar.compact-study {
    padding: 10px 12px;
  }
  .topbar.force-collapsible.compact-study {
    position: static;
    top: auto;
  }
  .topbar-mobile-actions { display: flex; }
  .topbar-current-pill { font-size: .82rem; }
  .topbar-panel {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding-top: 2px;
  }
  .topbar.mobile-open .topbar-panel { display: grid; }
  .top-tabs {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }
  .top-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: nowrap;
  }
  .top-actions .ghost-button { padding-inline: 12px; }
  .flag-group { flex-wrap: nowrap; }
  .nav-pill,
  .top-actions .ghost-button[data-nav-key="logout"] {
    min-width: 0;
    width: 100%;
    min-height: 40px;
  }
  .study-layout { grid-template-columns: 1fr; }
  .pair-picker { gap: 6px; }
  .pair-pill { width: calc(50% - 3px); text-align: center; padding-inline: 10px; }
  .study-side-panel {
    gap: 8px;
    padding: 2px 0 4px;
  }
  .study-settings-card,
  .study-footer-card {
    padding: 12px;
  }
  .study-controls-stack { gap: 10px; }
  .study-card-zone,
  .study-controls-shell,
  .study-settings-card { gap: 12px; }
  .flashcard {
    min-height: 332px;
    padding: 22px 18px;
    border-radius: 26px;
  }
  .study-audio-row .secondary-button,
  .study-audio-row .ghost-button {
    flex: 1 1 calc(50% - 10px);
  }
  .study-typing-actions .secondary-button,
  .study-typing-actions .ghost-button {
    flex: 1 1 calc(50% - 10px);
  }
  .study-settings-section {
    padding-top: 10px;
  }
  .study-grade-row .secondary-button,
  .study-utility-row .ghost-button {
    flex: 1 1 calc(50% - 10px);
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .shell { padding-inline: 12px; }
  .topbar {
    gap: 8px;
    border-radius: 22px;
  }
  .brand-row strong { font-size: .96rem; }
  .brand-mark { width: 32px; height: 32px; border-radius: 11px; }
  .page-card.study-page-card {
    padding: 16px;
  }
  .study-meta { margin: 0; }
  .flashcard {
    min-height: 320px;
    padding: 18px 16px;
    box-shadow: 0 18px 48px rgba(79,70,229,.18), 0 8px 20px rgba(15,23,42,.08), inset 0 1px 0 rgba(255,255,255,.95);
  }
  .flash-face { gap: 12px; }
  .flash-face strong { font-size: clamp(2.1rem, 10vw, 3rem); }
  .flash-face p { font-size: .98rem; }
  .flashcard.speak-mode .flash-face small { font-size: .94rem; }
  .top-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .pair-pill { width: 100%; }
}

@media (min-width: 961px) {
  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }
  .topbar-main-row { flex: 0 0 auto; }
  .topbar-panel { flex: 1 1 auto; display: flex; align-items: center; justify-content: space-between; }
}


.words-grid { align-items: start; }
.words-browser-card { min-height: 640px; }
.words-form-card { margin-top: 12px; }
.words-head-stack { align-items: flex-start; }
.words-head-note, .words-scope-note { margin: 4px 0 0; }
.words-filter-grid { margin-bottom: 8px; }
.collection-editor-card { margin-top: 12px; }
.collections-overview-grid { display: grid; gap: 14px; margin-top: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.collection-overview-card {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 18px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(99,102,241,.08), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,248,255,.94));
}
.collection-overview-card.active { border-color: rgba(99,102,241,.28); box-shadow: inset 0 0 0 1px rgba(99,102,241,.16); }
.collection-overview-copy { display: grid; gap: 8px; }
.words-library-section { display: grid; gap: 14px; }
.words-library-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.library-word-card .action-row { align-items: center; }
.empty-list-state { border: 1px dashed rgba(199,210,254,.52); border-radius: 18px; padding: 18px; color: var(--muted); background: linear-gradient(180deg, rgba(250,251,255,.98), rgba(242,246,255,.92)); }
.progress-empty-state {
  display: grid;
  gap: 8px;
  align-content: center;
  min-height: 144px;
}
.progress-empty-state p {
  margin: 0;
  max-width: 34ch;
}
.word-card-main { display: grid; gap: 4px; }
.pair-chip { background: #eef2ff; color: var(--primary); }
.pagination-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; }
.pagination-meta { color: var(--muted); font-size: .9rem; }
@media (max-width: 960px) {
  .form-shell-grid,
  .account-shell-grid,
  .admin-content-grid,
  .progress-detail-grid,
  .words-detail-grid,
  .words-grid { grid-template-columns: 1fr; }
  .words-browser-card { min-height: auto; }
  .collections-overview-grid { grid-template-columns: 1fr; }
  .words-filter-grid { grid-template-columns: 1fr; }
  .words-library-meta { gap: 6px; }
  .pagination-row { flex-wrap: wrap; justify-content: center; }
  .progress-summary-top {
    display: grid;
    gap: 12px;
  }
  .admin-editor-grid { grid-template-columns: 1fr; }
  .words-detail-actions { justify-content: flex-start; }
}

.info-stack{display:grid;gap:14px;margin:16px 0}
.info-card{padding:16px;border:1px solid rgba(199,210,254,.32);border-radius:18px;background:var(--surface-soft);box-shadow:inset 0 1px 0 rgba(255,255,255,.72)}
.info-card.warning{border-color:rgba(239,68,68,.25);background:rgba(254,242,242,.85)}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;margin:8px 0 16px}
.checkbox-row input{margin-top:3px}
.danger-button{border:none;border-radius:999px;padding:14px 18px;background:#dc2626;color:#fff;font-weight:700;cursor:pointer}
.danger-button:disabled{opacity:.5;cursor:not-allowed}
.legal-copy{display:grid;gap:12px;margin-top:16px}
.legal-standalone{max-width:880px;margin:40px auto;padding:20px}

/* Premium pastel refresh */
:root {
  --bg: #f7f5ff;
  --card: rgba(255, 255, 255, 0.96);
  --border: rgba(211, 220, 255, 0.86);
  --border-soft: rgba(205, 216, 255, 0.7);
  --text: #192033;
  --muted: #6b738d;
  --primary: #5a54ff;
  --primary-soft: rgba(90, 84, 255, 0.1);
  --danger: #e35c73;
  --shadow: 0 24px 70px rgba(72, 88, 149, 0.14);
  --shadow-soft: 0 24px 60px rgba(100, 108, 255, 0.12), 0 12px 24px rgba(36, 44, 75, 0.06);
  --surface: linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(249,250,255,.98) 100%);
  --surface-soft: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(246,248,255,.94) 100%);
}

html,
body {
  font-family: "Avenir Next", "Inter", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 204, 229, 0.22), transparent 26%),
    radial-gradient(circle at top right, rgba(191, 219, 254, 0.24), transparent 30%),
    radial-gradient(circle at bottom right, rgba(216, 180, 254, 0.18), transparent 28%),
    linear-gradient(180deg, #f9f7ff 0%, #f7f9ff 36%, #fbfcff 100%);
}

body.session-active {
  overflow-y: scroll;
}

.shell {
  max-width: 1328px;
}

.topbar {
  padding: 8px 12px;
  border-color: rgba(214, 222, 255, 0.86);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 12px 28px rgba(54, 67, 119, 0.07);
  backdrop-filter: blur(18px);
}

@media (min-width: 961px) {
  .topbar {
    padding: 8px 12px;
    gap: 12px;
    align-items: center;
  }

  .topbar-main-row {
    flex: 0 0 auto;
    min-width: 0;
  }

  .topbar-panel {
    min-width: 0;
    gap: 10px;
  }

  .top-tabs {
    flex: 1 1 auto;
    min-width: 0;
    flex-wrap: nowrap;
    align-items: center;
    gap: 2px;
    padding: 3px;
    border: 1px solid rgba(214, 222, 255, 0.9);
    border-radius: 16px;
    background: rgba(246, 248, 255, 0.62);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.82);
  }

  .topbar .nav-pill {
    flex: 0 1 auto;
    min-width: 0;
    border-color: transparent;
    background: transparent;
    box-shadow: none;
    color: #5c6687;
    font-weight: 600;
    padding: 7px 10px;
    font-size: .95rem;
  }

  .topbar .nav-pill:hover {
    transform: none;
    background: rgba(255,255,255,.56);
  }

  .topbar .nav-pill.active {
    background: rgba(255,255,255,.96);
    border-color: rgba(208, 217, 255, 0.96);
    color: #33406f;
    box-shadow: 0 10px 20px rgba(84, 93, 146, 0.08);
  }

  .top-actions .ghost-button {
    background: rgba(255,255,255,.86);
    box-shadow: none;
  }

  .top-actions {
    flex: 0 0 auto;
    gap: 8px;
    padding-left: 2px;
  }

  .flag-group {
    gap: 6px;
  }

  .flag-btn {
    width: 34px;
    height: 34px;
  }
}

.nav-pill[data-nav-key="home"] { min-width: 96px; }
.nav-pill[data-nav-key="study"] { min-width: 82px; }
.nav-pill[data-nav-key="words"] { min-width: 126px; }
.nav-pill[data-nav-key="progress"] { min-width: 98px; }
.nav-pill[data-nav-key="feedback"] { min-width: 104px; }
.nav-pill[data-nav-key="contact"] { min-width: 96px; }
.nav-pill[data-nav-key="account"] { min-width: 90px; }
.nav-pill[data-nav-key="admin"] { min-width: 82px; }
.nav-pill[data-nav-key="app"] { min-width: 74px; }
.nav-pill[data-nav-key="content"] { min-width: 132px; }
.nav-pill[data-nav-key="monitoring"] { min-width: 108px; }
.top-actions .ghost-button[data-nav-key="logout"] { min-width: 104px; }

.nav-pill,
.flag-btn,
.segment,
.ghost-button,
.secondary-button {
  padding: 7px 13px;
  border-color: rgba(208, 217, 255, 0.82);
  background: rgba(255, 255, 255, 0.82);
}

.nav-pill.active,
.segment.active,
.flag-btn.active {
  background: rgba(90, 84, 255, 0.11);
  border-color: rgba(128, 122, 255, 0.4);
  color: var(--primary);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.72);
}

.primary-button {
  background: linear-gradient(135deg, #5a54ff, #7a68ff);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 18px 30px rgba(90, 84, 255, 0.24);
}

.secondary-button {
  background: rgba(90, 84, 255, 0.11);
  color: var(--primary);
}

.ghost-button.danger {
  color: #d55d7b;
}

.hero-card,
.page-card,
.auth-card {
  border-color: rgba(208, 218, 255, 0.82);
  box-shadow: 0 28px 80px rgba(92, 101, 161, 0.12);
}

.page-intro {
  padding: 15px 18px;
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(90,84,255,.08), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(246,248,255,.96));
}

.page-intro-title {
  max-width: 18ch;
  color: #2f3574;
  background: none;
  -webkit-text-fill-color: currentColor;
}

.page-intro-text,
.home-card-copy p,
.install-card-copy span,
.progress-empty-state p,
.muted {
  color: var(--muted);
}

.chip {
  background: rgba(241, 243, 252, 0.96);
  color: #697089;
}

.pair-chip {
  background: rgba(90, 84, 255, 0.11);
  color: var(--primary);
}

.stat-card,
.mini-stat,
.info-card {
  border-color: rgba(210, 219, 255, 0.76);
  background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(247,249,255,.92));
}

.home-dashboard {
  gap: 18px;
  padding: 22px;
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.18), transparent 26%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,255,.97));
}

.home-hero-shell {
  min-height: 284px;
  height: auto;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  gap: 18px;
  align-items: stretch;
  padding: 22px 24px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(255, 201, 228, 0.12), transparent 24%),
    radial-gradient(circle at center right, rgba(191, 219, 254, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(255,255,255,.98) 0%, rgba(247,249,255,.98) 52%, rgba(243,247,255,.98) 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.86);
}

.home-hero-shell::before,
.home-hero-shell::after {
  display: none;
}

.home-hero-copy {
  grid-template-rows: auto auto auto auto;
  gap: 12px;
  align-content: center;
  position: relative;
  z-index: 1;
}

.home-hero-eyebrow {
  min-width: 11ch;
  justify-content: center;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(211, 220, 255, 0.78);
  box-shadow: 0 12px 24px rgba(91, 101, 181, 0.08);
}

.home-hero-copy h1 {
  display: block;
  width: 11.4ch;
  min-height: 4.5rem;
  font-size: clamp(1.82rem, 2.5vw, 2.55rem);
  line-height: 0.94;
  letter-spacing: -0.055em;
  text-wrap: balance;
  overflow-wrap: anywhere;
}

.home-hero-copy p {
  max-width: 32ch;
  min-height: 0;
  font-size: 0.95rem;
  line-height: 1.48;
}

.home-hero-meta {
  min-height: 0;
  align-content: start;
}

.home-hero-note {
  max-width: 31ch;
  padding-top: 2px;
}

.home-hero-spotlight {
  display: grid;
  gap: 12px;
  align-content: stretch;
  position: relative;
  z-index: 1;
}

.home-hero-panel {
  gap: 14px;
  height: 100%;
  padding: 20px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(255,255,255,.42), transparent 34%),
    linear-gradient(145deg, rgba(97, 90, 255, 0.12), rgba(130, 165, 255, 0.08) 62%, rgba(255,255,255,.98));
  box-shadow: 0 14px 30px rgba(94, 91, 255, 0.08);
}

.home-hero-panel-copy {
  display: grid;
  gap: 6px;
  grid-template-rows: auto minmax(2.2rem, auto) minmax(2.7rem, auto);
  min-height: 92px;
}

.home-hero-panel-title {
  font-size: clamp(1.22rem, 1.85vw, 1.56rem);
  min-height: 2.08em;
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.home-hero-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.home-hero-summary-grid .home-hero-stat {
  padding: 10px 12px;
  border: 1px solid rgba(199, 210, 254, 0.46);
  border-radius: 16px;
  background: rgba(255,255,255,.78);
  font-size: .82rem;
  font-weight: 600;
  color: var(--muted);
  justify-content: center;
  text-align: center;
}

.home-dashboard-layout {
  grid-template-columns: minmax(0, 1.04fr) minmax(300px, 0.96fr);
  align-items: start;
}

.home-side-stack {
  display: grid;
  gap: 12px;
  align-content: start;
}

.home-settings-card,
.home-action-card,
.home-install-card,
.collection-overview-card,
.words-toolbar-card,
.words-detail-list-card,
.words-detail-library-card,
.progress-summary-card,
.progress-list-card,
.form-side-card,
.form-main-card,
.account-main-card,
.legal-card,
.account-danger-card,
.admin-filter-card,
.admin-stage-card,
.admin-summary-card,
.admin-feed-card,
.admin-side-card {
  border-radius: 26px;
}

.home-settings-card {
  padding: 20px;
  background:
    radial-gradient(circle at top left, rgba(191,219,254,.14), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,255,.96));
}

.home-action-card {
  padding: 15px 16px;
  gap: 10px;
  background:
    radial-gradient(circle at top right, rgba(255, 207, 233, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.97), rgba(248,250,255,.95));
}

.home-action-card .action-row {
  margin-top: auto;
}

.home-install-card {
  border-style: solid;
  background:
    radial-gradient(circle at top right, rgba(255, 224, 204, 0.18), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(250,246,255,.95));
}

.auth-card {
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.18), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.96));
}

.auth-copy h1 {
  letter-spacing: -0.06em;
}

.form-side-card {
  background:
    radial-gradient(circle at top left, rgba(255, 207, 233, 0.18), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.95));
}

.form-main-card {
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(249,250,255,.96));
}

.form-note-card {
  background: rgba(255,255,255,.76);
}

.textarea.large {
  min-height: 220px;
}

.progress-summary-card {
  padding: 20px;
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.22), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(246,248,255,.95));
}

.progress-meter-card {
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.9), rgba(243,246,255,.96));
}

.progress-meter-card.learned {
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.18), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(241,247,255,.94));
}

.progress-meter-card.hard {
  background:
    radial-gradient(circle at top right, rgba(255,224,204,.18), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(250,245,255,.94));
}

.progress-list-card {
  padding: 20px;
  background:
    radial-gradient(circle at top left, rgba(255, 207, 233, 0.09), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,255,.95));
}

.progress-empty-state {
  border-style: solid;
  background:
    linear-gradient(180deg, rgba(250,252,255,.98), rgba(243,247,255,.94));
}

.account-main-card {
  padding: 22px;
  background:
    radial-gradient(circle at top left, rgba(191,219,254,.22), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.95));
}

.account-main-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.account-top-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
}

.account-main-grid-layout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.account-identity {
  display: flex;
  align-items: center;
  gap: 14px;
}

.account-avatar {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  flex: 0 0 auto;
}

.account-identity-copy {
  display: grid;
  gap: 4px;
}

.account-identity-copy p {
  margin: 0;
}

.account-form-pane {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid rgba(210, 219, 255, 0.76);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(255, 229, 213, 0.18), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.96), rgba(247,249,255,.94));
}

.account-form-pane .section-head {
  margin-bottom: 2px;
}

.account-form-note {
  margin-top: -4px;
}

.account-spotlight-card {
  padding: 22px;
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.28), transparent 30%),
    radial-gradient(circle at bottom left, rgba(255, 207, 233, 0.22), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,248,255,.94));
}

.legal-card {
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,255,.95));
}

.account-danger-card {
  padding: 22px;
  max-width: none;
  border-color: rgba(255, 188, 198, 0.72);
  background:
    radial-gradient(circle at top right, rgba(255, 224, 204, 0.28), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,245,247,.94));
}

.account-danger-card .info-card {
  background: rgba(255,255,255,.78);
}

.danger-button {
  background: linear-gradient(135deg, #ef6b8f, #ff7d79);
  box-shadow: 0 14px 30px rgba(239, 107, 143, 0.24);
}

.admin-filter-card {
  padding: 20px;
  gap: 16px;
  background:
    radial-gradient(circle at top left, rgba(191,219,254,.24), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.95));
}

.admin-filter-copy {
  display: grid;
  gap: 8px;
  max-width: 42rem;
}

.admin-filter-copy p {
  margin: 0;
  max-width: 42ch;
}

.admin-stage-card {
  padding: 20px;
  background:
    radial-gradient(circle at top right, rgba(255, 207, 233, 0.16), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(246,248,255,.95));
}

.admin-summary-card,
.admin-feed-card,
.admin-side-card {
  padding: 20px;
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.2), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.95));
}

.admin-editor-card {
  padding: 20px;
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.26), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(244,247,255,.95));
}

.admin-official-card {
  align-items: center;
  border-left: 3px solid rgba(90, 84, 255, 0.18);
  background:
    radial-gradient(circle at top right, rgba(255,255,255,.56), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.92));
}

.admin-official-card .word-head {
  margin-bottom: 8px;
}

.app-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
  padding: 14px 0 4px;
  border-top: 1px solid rgba(208, 218, 255, 0.78);
}

.app-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  padding: 0;
  color: #4e56d8;
  font: inherit;
  font-size: 0.92rem;
  min-width: 86px;
  cursor: pointer;
}

.footer-link[data-footer-key="terms"] { min-width: 78px; }
.footer-link[data-footer-key="impressum"] { min-width: 96px; }

.footer-link:hover {
  text-decoration: underline;
}

.admin-item {
  border-radius: 20px;
  border-left: 3px solid rgba(90, 84, 255, 0.16);
  background:
    radial-gradient(circle at top right, rgba(255, 229, 213, 0.1), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.92));
}

.words-toolbar-card {
  padding: 18px;
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.22), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(246,248,255,.95));
}

.words-detail-list-card,
.words-detail-library-card {
  padding: 18px;
  background:
    radial-gradient(circle at top right, rgba(255, 207, 233, 0.1), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.95));
}

.words-detail-list-card .word-card,
.words-detail-library-card .word-card {
  border-left: 3px solid rgba(90, 84, 255, 0.16);
  background: rgba(255,255,255,.82);
}

.collection-overview-card {
  background:
    radial-gradient(circle at top right, rgba(191,219,254,.15), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,255,.94));
}

.collection-overview-copy strong {
  font-size: 1.12rem;
}

@media (max-width: 960px) {
  .home-hero-shell,
  .home-dashboard-layout,
  .account-main-grid,
  .account-top-grid,
  .account-main-grid-layout {
    grid-template-columns: 1fr;
  }

  .home-hero-shell {
    min-height: auto;
    padding: 22px;
  }

  .home-hero-copy h1 {
    width: 11.5ch;
    min-height: 0;
    font-size: clamp(1.95rem, 5.1vw, 2.55rem);
  }

  .home-hero-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .app-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: flex-start;
  }

  .app-footer-links {
    justify-content: flex-start;
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .home-dashboard {
    padding: 18px;
  }

  .home-hero-shell,
  .home-settings-card,
  .home-action-card,
  .home-install-card,
  .account-main-card,
  .account-form-pane,
  .form-side-card,
  .form-main-card,
  .progress-summary-card,
  .progress-list-card,
  .words-toolbar-card,
  .words-detail-list-card,
  .words-detail-library-card,
  .admin-filter-card,
  .admin-stage-card,
  .admin-summary-card,
  .admin-feed-card,
  .admin-side-card {
    padding: 16px;
  }

  .home-hero-shell {
    gap: 14px;
  }

  .home-hero-copy {
    gap: 12px;
  }

  .home-hero-copy h1 {
    width: 11.5ch;
    min-height: 0;
    font-size: clamp(1.7rem, 8.2vw, 2.15rem);
  }

  .home-hero-copy p {
    max-width: 24ch;
    font-size: 0.96rem;
  }

  .home-hero-summary-grid {
    grid-template-columns: 1fr;
  }

  .page-intro-title {
    font-size: 1.08rem;
    max-width: none;
  }

  .mobile-detail-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .mobile-detail-actions .ghost-button.danger {
    grid-column: 1 / -1;
  }

  .mobile-detail-actions .secondary-button,
  .mobile-detail-actions .ghost-button {
    width: 100%;
    justify-content: center;
  }
}