/* ==========================================================================
   Jogos Pedagógicos — Escola de Línguas Bíblicas (jogos.linguasbiblicas.com.br)
   Arquitetura CSS Moderna: Tokens por Ambiente, 3D Card Flip, Toggle Matrix
   ========================================================================== */

@font-face {
  font-family: "SBL Hebrew";
  src: url("/fonts/SBL_Hbrw.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;

  --bg-page: #090e1a;
  --bg-surface: #11192c;
  --bg-surface-elevated: #17223b;
  --bg-surface-soft: rgba(23, 34, 59, 0.68);
  --bg-pill: #152038;
  --bg-pill-hover: #1e2d4d;

  --text-primary: #f6f4ee;
  --text-secondary: #b5c0d4;
  --text-muted: #7d8ca8;

  --border-subtle: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);

  --accent-hebrew: #d9a441;
  --accent-hebrew-soft: rgba(217, 164, 65, 0.16);
  --accent-aramaic: #14b886;
  --accent-aramaic-soft: rgba(20, 184, 134, 0.16);
  --accent-greek: #4b8df8;
  --accent-greek-soft: rgba(75, 141, 248, 0.16);

  --env-accent: var(--accent-hebrew);
  --env-accent-soft: var(--accent-hebrew-soft);
  --env-contrast: #0b101d;

  --status-easy: #10b981;
  --status-medium: #f59e0b;
  --status-hard: #ef4444;

  --font-sans: "Outfit", "Inter", system-ui, -apple-system, sans-serif;
  --font-semitic: "SBL Hebrew", "Frank Ruhl Libre", "Ezra SIL", "Times New Roman", serif;
  --font-greek: "Cardo", "Gentium Plus", "Palatino Linotype", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;
  --shadow-card: 0 18px 46px rgba(0, 0, 0, 0.42);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg-page: #f5f2ea;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #fbf9f4;
  --bg-surface-soft: rgba(255, 255, 255, 0.88);
  --bg-pill: #eee9dc;
  --bg-pill-hover: #e3dccb;

  --text-primary: #162036;
  --text-secondary: #3f4d6b;
  --text-muted: #677591;

  --border-subtle: rgba(22, 32, 54, 0.11);
  --border-strong: rgba(22, 32, 54, 0.22);

  --accent-hebrew: #a67316;
  --accent-hebrew-soft: rgba(166, 115, 22, 0.14);
  --accent-aramaic: #0d8a63;
  --accent-aramaic-soft: rgba(13, 138, 99, 0.13);
  --accent-greek: #255ec7;
  --accent-greek-soft: rgba(37, 94, 199, 0.13);
  --env-contrast: #ffffff;

  --shadow-card: 0 14px 36px rgba(22, 32, 54, 0.09);
}

body[data-env="hebraico"] {
  --env-accent: var(--accent-hebrew);
  --env-accent-soft: var(--accent-hebrew-soft);
}

body[data-env="aramaico"] {
  --env-accent: var(--accent-aramaic);
  --env-accent-soft: var(--accent-aramaic-soft);
}

body[data-env="grego"] {
  --env-accent: var(--accent-greek);
  --env-accent-soft: var(--accent-greek-soft);
}

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

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  background-image:
    radial-gradient(circle at 12% 10%, var(--env-accent-soft), transparent 44%),
    radial-gradient(circle at 88% 90%, rgba(75, 141, 248, 0.07), transparent 48%);
  color: var(--text-primary);
  line-height: 1.5;
}

.font-semitic {
  font-family: var(--font-semitic);
  font-feature-settings: "kern" 1, "liga" 1, "mark" 1, "mkmk" 1;
}

.font-greek {
  font-family: var(--font-greek);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Cabeçalho Institucional ELB
   ========================================================================== */

.elb-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 24px;
  background: color-mix(in srgb, var(--bg-page) 84%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  border-radius: 6px;
}

.brand-titles {
  display: flex;
  flex-direction: column;
}

.brand-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--env-accent);
  font-weight: 600;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Seletor Rápido de Ambientes no Header */
.env-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.env-pill-btn {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.env-pill-btn:hover {
  color: var(--text-primary);
  background: var(--bg-pill-hover);
}

.env-pill-btn[aria-current="page"] {
  background: var(--env-accent);
  color: var(--env-contrast);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-ghost,
.btn-outline,
.btn-primary {
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  transition: transform 0.15s ease, background-color 0.18s ease, border-color 0.18s ease;
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-pill);
}

.btn-outline {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  border-color: var(--env-accent);
  background: var(--bg-surface-elevated);
}

.btn-primary {
  background: var(--env-accent);
  color: var(--env-contrast);
  border: 1px solid transparent;
  font-weight: 700;
}

.btn-primary:hover {
  filter: brightness(1.07);
}

button:focus-visible,
a:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 3px solid var(--env-accent);
  outline-offset: 3px;
}

/* ==========================================================================
   Container Principal & Hub dos 3 Ambientes de Línguas
   ========================================================================== */

.app-main {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 56px;
  flex: 1;
}

.hub-hero {
  text-align: center;
  max-width: 760px;
  margin: 12px auto 36px;
}

.hub-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-hebrew);
  background: var(--accent-hebrew-soft);
  border: 1px solid color-mix(in srgb, var(--accent-hebrew) 35%, transparent);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.hub-title {
  font-size: clamp(1.85rem, 3.8vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 12px;
  text-wrap: balance;
}

.hub-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0 auto;
  text-wrap: pretty;
}

.env-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 22px;
}

.env-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  position: relative;
  overflow: hidden;
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.env-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--card-accent);
}

.env-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-accent);
  @media (prefers-reduced-motion: reduce) {
    transform: none;
  }
}

.env-card[data-lang="hebraico"] { --card-accent: var(--accent-hebrew); }
.env-card[data-lang="aramaico"] { --card-accent: var(--accent-aramaic); }
.env-card[data-lang="grego"] { --card-accent: var(--accent-greek); }

.env-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.env-native-script {
  font-size: 1.75rem;
  line-height: 1.2;
  color: var(--card-accent);
}

.env-tag-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-pill);
  color: var(--text-secondary);
  font-weight: 600;
}

.env-card h2 {
  margin: 10px 0 8px;
  font-size: 1.38rem;
}

.env-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.env-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.env-stat-chip {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--bg-pill);
  color: var(--text-secondary);
}

.env-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Cabeçalho do Ambiente Isolado de Língua (Hebraico | Aramaico | Grego)
   ========================================================================== */

.workspace-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 5px solid var(--env-accent);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
}

.workspace-title-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.workspace-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--env-accent);
}

.workspace-title-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.workspace-title-row h1 {
  margin: 0;
  font-size: 1.5rem;
}

.workspace-native {
  font-size: 1.45rem;
  color: var(--text-secondary);
}

.game-mode-tabs {
  display: inline-flex;
  background: var(--bg-page);
  padding: 5px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  gap: 6px;
}

.game-tab-btn {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.game-tab-btn[aria-selected="true"] {
  background: var(--env-accent);
  color: var(--env-contrast);
}

/* ==========================================================================
   Controles Switch Nativos (<input type="checkbox" switch>)
   ========================================================================== */

.controls-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 18px;
}

.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.field-inline {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.select-modern {
  background: var(--bg-pill);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 6px 10px;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  max-width: 260px;
}

.switch-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  padding: 4px 8px;
  border-radius: 8px;
  background: var(--bg-pill);
  border: 1px solid var(--border-subtle);
}

.switch-label:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

input[type="checkbox"][switch] {
  accent-color: var(--env-accent);
  margin: 0;
  cursor: pointer;
  width: 1.1rem;
  height: 1.1rem;
}

input[type="checkbox"][switch]:focus-visible {
  outline: 3px solid var(--env-accent);
  outline-offset: 4px;
}

/* ==========================================================================
   JOGO 1: QUIZ DE PARSING (Análise & Modo Inverso)
   ========================================================================== */

.quiz-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.score-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.score-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
}

.metric-item strong {
  color: var(--env-accent);
  font-family: var(--font-mono);
  font-size: 1rem;
}

.quiz-prompt-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  position: relative;
}

.prompt-direction-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--env-accent-soft);
  color: var(--env-accent);
  margin-bottom: 12px;
}

.biblical-word-display {
  font-size: clamp(2.6rem, 6vw, 4.1rem);
  line-height: 1.32;
  margin: 8px 0;
  color: var(--text-primary);
}

.translit-line {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--env-accent);
  margin-bottom: 6px;
}

.lemma-hint-line {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

.audio-icon-btn {
  border: 1px solid var(--border-strong);
  background: var(--bg-pill);
  color: var(--text-primary);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.audio-icon-btn:hover {
  border-color: var(--env-accent);
  color: var(--env-accent);
}

/* Matriz de Botões Destacados de Liga/Desliga (Parsing) */
.parsing-matrix {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-card);
}

.parsing-row {
  display: grid;
  grid-template-columns: 185px 1fr;
  align-items: start;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.parsing-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

@media (max-width: 700px) {
  .parsing-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

.parsing-cat-label {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  padding-top: 7px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.parsing-row.row-wrong .parsing-cat-label {
  color: var(--status-hard);
}

.parsing-row.row-right .parsing-cat-label {
  color: var(--status-easy);
}

.toggle-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Botão Liga/Desliga de Característica Morfológica */
.morph-toggle-btn {
  appearance: none;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-pill);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 15px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: transform 0.12s ease, background-color 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, color 0.16s ease;
}

.morph-toggle-btn::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.45;
  transition: background-color 0.16s ease, opacity 0.16s ease;
}

.morph-toggle-btn:hover {
  background: var(--bg-pill-hover);
  color: var(--text-primary);
}

.morph-toggle-btn[aria-pressed="true"] {
  background: var(--env-accent);
  border-color: var(--env-accent);
  color: var(--env-contrast);
  box-shadow: 0 0 0 3px var(--env-accent-soft), 0 6px 18px rgba(0, 0, 0, 0.28);
  font-weight: 700;
}

.morph-toggle-btn[aria-pressed="true"]::before {
  background: currentColor;
  opacity: 1;
}

/* Modo Inverso: Badges destacados acesos + Campo de escrita da palavra original */
.reverse-specs-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 18px 0;
}

.highlighted-spec-pill {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background: var(--env-accent-soft);
  border: 2px solid var(--env-accent);
  box-shadow: 0 4px 16px var(--env-accent-soft);
}

.spec-cat {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-secondary);
}

.spec-val {
  font-size: 1.04rem;
  font-weight: 800;
  color: var(--env-accent);
}

.reverse-form {
  max-width: 560px;
  margin: 18px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.biblical-input {
  width: 100%;
  background: var(--bg-page);
  color: var(--text-primary);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 1.9rem;
  text-align: center;
  line-height: 1.35;
}

.biblical-input:focus {
  border-color: var(--env-accent);
  outline: none;
  box-shadow: 0 0 0 4px var(--env-accent-soft);
}

/* Teclado Bíblico Virtual */
.vk-board {
  margin-top: 14px;
  padding: 14px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.vk-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.vk-key {
  min-width: 38px;
  height: 40px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.vk-key:hover {
  border-color: var(--env-accent);
  background: var(--bg-pill-hover);
}

.vk-key-diac {
  font-size: 0.92rem;
  background: var(--bg-pill);
  color: var(--env-accent);
}

.vk-key-wide {
  min-width: 120px;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
}

.vk-key-action {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.quiz-actions-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
}

.feedback-banner {
  padding: 13px 18px;
  border-radius: var(--radius-md);
  font-size: 0.93rem;
  font-weight: 600;
  border: 1px solid transparent;
}

.feedback-banner.ok {
  background: rgba(16, 185, 129, 0.14);
  border-color: rgba(16, 185, 129, 0.45);
  color: #34d399;
}

html[data-theme="light"] .feedback-banner.ok {
  color: #065f46;
}

.feedback-banner.err {
  background: rgba(239, 68, 68, 0.13);
  border-color: rgba(239, 68, 68, 0.45);
  color: #f87171;
}

html[data-theme="light"] .feedback-banner.err {
  color: #991b1b;
}

/* ==========================================================================
   JOGO 2: FLASHCARDS (Frente e Verso 3D + Fácil/Médio/Difícil + Score Final)
   ========================================================================== */

.fc-stage {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.fc-progress-track {
  width: 100%;
  height: 8px;
  background: var(--bg-pill);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.fc-progress-fill {
  height: 100%;
  background: var(--env-accent);
  border-radius: var(--radius-full);
  transition: width 0.25s ease;
}

.fc-perspective {
  perspective: 1200px;
  min-height: 330px;
}

.fc-card-inner {
  position: relative;
  width: 100%;
  min-height: 330px;
  transform-style: preserve-3d;
  transition: transform 0.48s cubic-bezier(0.22, 1, 0.36, 1);
  @media (prefers-reduced-motion: reduce) {
    transition: none;
    transform-style: flat;
  }
}

.fc-card-inner.is-flipped {
  transform: rotateY(180deg);
  @media (prefers-reduced-motion: reduce) {
    transform: none;
  }
}

.fc-face {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  min-height: 330px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
}

.fc-face-back {
  position: absolute;
  inset: 0;
  transform: rotateY(180deg);
  justify-content: space-between;
  overflow-y: auto;
  @media (prefers-reduced-motion: reduce) {
    transform: none;
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fc-card-inner.is-flipped .fc-face-front {
    display: none;
  }
  .fc-card-inner.is-flipped .fc-face-back {
    position: relative;
    display: flex;
  }
}

.fc-translation-text {
  font-size: clamp(1.22rem, 2.5vw, 1.62rem);
  font-weight: 700;
  color: var(--text-primary);
  max-width: 580px;
  line-height: 1.42;
}

.fc-morph-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.fc-chip {
  font-size: 0.8rem;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-pill);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.fc-chip strong {
  color: var(--env-accent);
}

.fc-flip-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.btn-flip-main {
  min-width: 240px;
  padding: 13px 26px;
  font-size: 1rem;
  border-radius: var(--radius-full);
}

.fc-rating-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.rating-btn {
  appearance: none;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-surface);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 14px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-family: var(--font-sans);
  transition: transform 0.14s ease, border-color 0.16s ease, background-color 0.16s ease;
}

.rating-btn:hover {
  transform: translateY(-2px);
  @media (prefers-reduced-motion: reduce) {
    transform: none;
  }
}

.rating-btn.hard { border-color: rgba(239, 68, 68, 0.45); }
.rating-btn.hard:hover { background: rgba(239, 68, 68, 0.15); border-color: var(--status-hard); }

.rating-btn.medium { border-color: rgba(245, 158, 11, 0.45); }
.rating-btn.medium:hover { background: rgba(245, 158, 11, 0.15); border-color: var(--status-medium); }

.rating-btn.easy { border-color: rgba(16, 185, 129, 0.45); }
.rating-btn.easy:hover { background: rgba(16, 185, 129, 0.15); border-color: var(--status-easy); }

.rating-title {
  font-size: 1rem;
  font-weight: 700;
}

.rating-pts {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-secondary);
}

/* Tela de Score Final */
.score-summary-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--env-accent);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  box-shadow: var(--shadow-card);
  text-align: center;
}

.score-big-number {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 800;
  color: var(--env-accent);
  margin: 8px 0 4px;
}

.score-breakdown-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 22px 0;
}

.breakdown-box {
  background: var(--bg-pill);
  border-radius: var(--radius-md);
  padding: 14px;
}

.review-words-list {
  text-align: left;
  margin: 18px 0;
  max-height: 220px;
  overflow-y: auto;
  background: var(--bg-page);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  border: 1px solid var(--border-subtle);
}

.review-word-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.88rem;
}

.review-word-row:last-child {
  border-bottom: none;
}

/* ==========================================================================
   Dialogs Nativos (<dialog>) — Conforme modern-web-guidance `dialog`
   ========================================================================== */

dialog {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 0;
  max-width: 620px;
  width: calc(100% - 32px);
  box-shadow: var(--shadow-card);
}

dialog[open] {
  display: flex;
  flex-direction: column;
}

/* MANDATORY scroll containment rules from modern-web-guidance `dialog` */
dialog:modal {
  overscroll-behavior: contain;
}

dialog::backdrop {
  background: rgba(5, 8, 16, 0.72);
  backdrop-filter: blur(5px);
  overflow: hidden;
  overscroll-behavior: contain;
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-subtle);
}

.dialog-header h2 {
  margin: 0;
  font-size: 1.18rem;
}

.dialog-body {
  padding: 20px 22px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 22px;
  border-top: 1px solid var(--border-subtle);
}

.dropzone-box {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 24px 18px;
  text-align: center;
  background: var(--bg-page);
  transition: border-color 0.18s ease;
}

.dropzone-box:hover {
  border-color: var(--env-accent);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.86rem;
}

.input-modern {
  background: var(--bg-page);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 9px 12px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.elb-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.elb-footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.elb-footer a:hover {
  color: var(--env-accent);
}