/* =====================================================================
   VEUS Quiz — style.css
   Mockup standalone, sem CDN, system fonts, light + dark.
   ===================================================================== */

/* ---------- Tokens canônicos VEUS ---------- */
:root {
  --veus-bg: #ffffff;
  --veus-surface: #fafafa;
  --veus-surface-2: #f4f1ec;
  --veus-ink: #1f1a14;
  --veus-ink-muted: #595959;
  --veus-ink-soft: #8a8479;
  --veus-yellow: #FFB316;
  --veus-yellow-hover: #e69d00;
  --veus-yellow-focus: #956200;
  --veus-yellow-soft: #fff4d9;
  --veus-yellow-ink: #1f1a14;
  --veus-border: #e5e2dc;
  --veus-border-strong: #cfcabf;
  --veus-success: #2f7d3b;
  --veus-success-soft: #e3f3e6;
  --veus-warning: #c47600;
  --veus-warning-soft: #fff1d6;
  --veus-danger: #b8332a;
  --veus-danger-soft: #fbe6e3;
  --veus-shadow-sm: 0 1px 2px rgba(31, 26, 20, 0.04), 0 1px 1px rgba(31, 26, 20, 0.03);
  --veus-shadow-md: 0 4px 14px rgba(31, 26, 20, 0.06), 0 2px 4px rgba(31, 26, 20, 0.04);
  --veus-shadow-lg: 0 12px 32px rgba(31, 26, 20, 0.10), 0 4px 8px rgba(31, 26, 20, 0.04);
  --veus-font-display: "Conduit ITC Medium", "Barlow Condensed", system-ui, -apple-system, "Segoe UI", sans-serif;
  --veus-font-body: "Conduit ITC Light", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --veus-radius: 12px;
  --veus-radius-lg: 18px;
  --veus-radius-2xl: 22px;
  --veus-radius-pill: 999px;
}

:root[data-theme="dark"] {
  --veus-bg: #1f1a14;
  --veus-surface: #2a241c;
  --veus-surface-2: #342c22;
  --veus-ink: #f5f1ea;
  --veus-ink-muted: #b9b3a8;
  --veus-ink-soft: #807a6e;
  --veus-yellow-soft: rgba(255, 179, 22, 0.16);
  --veus-yellow-focus: #FFB316;
  --veus-border: #3d3528;
  --veus-border-strong: #514637;
  --veus-success-soft: rgba(47, 125, 59, 0.18);
  --veus-warning-soft: rgba(196, 118, 0, 0.20);
  --veus-danger-soft: rgba(184, 51, 42, 0.20);
  --veus-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.30);
  --veus-shadow-md: 0 4px 14px rgba(0, 0, 0, 0.32);
  --veus-shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.40);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--veus-font-body);
  background: var(--veus-bg);
  color: var(--veus-ink);
  line-height: 1.55;
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; padding: 0; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible {
  outline: 3px solid var(--veus-yellow-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Layout principal: app shell ---------- */
.app {
  display: grid;
  grid-template-columns: 256px 1fr;
  min-height: 100vh;
}
.app--focus { grid-template-columns: 1fr; }

/* ---------- Sidebar ---------- */
.sidebar {
  background: var(--veus-surface);
  border-right: 1px solid var(--veus-border);
  padding: 24px 18px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  padding: 4px 8px;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--veus-yellow);
  color: var(--veus-yellow-ink);
  display: grid;
  place-items: center;
  box-shadow: 0 2px 6px rgba(255, 179, 22, 0.32);
}
.brand-mark svg { width: 22px; height: 22px; }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand-veus {
  font-family: var(--veus-font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.brand-app {
  font-size: 12px;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--veus-ink-muted);
  margin-top: 4px;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--veus-ink-soft);
  padding: 8px 12px 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--veus-ink-muted);
  text-decoration: none;
  transition: background 120ms ease, color 120ms ease;
}
.nav-item:hover {
  background: var(--veus-surface-2);
  color: var(--veus-ink);
}
.nav-item.is-active {
  background: var(--veus-yellow-soft);
  color: var(--veus-ink);
  font-weight: 600;
}
.nav-item.is-active::before {
  content: "";
  width: 3px;
  height: 18px;
  background: var(--veus-yellow);
  border-radius: 2px;
  margin-left: -12px;
  margin-right: 9px;
}
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.sidebar-footer {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--veus-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.user-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--veus-surface-2);
}
.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--veus-ink);
  color: var(--veus-bg);
  display: grid;
  place-items: center;
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
}
.user-name {
  font-weight: 600;
  font-size: 14px;
  line-height: 1.2;
}
.user-role {
  font-size: 12px;
  color: var(--veus-ink-muted);
}

/* ---------- Main ---------- */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---------- Topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 32px;
  border-bottom: 1px solid var(--veus-border);
  background: var(--veus-bg);
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
  background-color: color-mix(in srgb, var(--veus-bg) 92%, transparent);
}
.topbar-title {
  font-family: var(--veus-font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.icon-btn {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: var(--veus-ink-muted);
  position: relative;
  transition: background 120ms ease, color 120ms ease;
}
.icon-btn:hover {
  background: var(--veus-surface-2);
  color: var(--veus-ink);
}
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn .badge-dot {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  background: var(--veus-yellow);
  border: 2px solid var(--veus-bg);
  border-radius: 50%;
}

/* Theme toggle: hide opposite icon */
[data-theme="light"] .icon-moon,
[data-theme="dark"] .icon-sun { display: none; }

.topbar-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--veus-ink);
  color: var(--veus-bg);
  display: grid;
  place-items: center;
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 13px;
}

.menu-toggle {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  color: var(--veus-ink-muted);
}
.menu-toggle svg { width: 22px; height: 22px; }

/* ---------- Content ---------- */
.content {
  padding: 32px;
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
}

/* ---------- Hero (home) ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--veus-surface) 0%, var(--veus-surface-2) 100%);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-2xl);
  padding: 44px 48px;
  overflow: hidden;
  margin-bottom: 36px;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--veus-border-strong) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.45;
  z-index: -1;
  mask-image: linear-gradient(to right, black 0%, transparent 80%);
  -webkit-mask-image: linear-gradient(to right, black 0%, transparent 80%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--veus-yellow);
  color: var(--veus-yellow-ink);
  padding: 5px 12px;
  border-radius: var(--veus-radius-pill);
  font-family: var(--veus-font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero-title {
  font-family: var(--veus-font-display);
  font-size: clamp(2.4rem, 4vw + 0.5rem, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  font-weight: 700;
  margin: 0 0 12px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--veus-yellow) 0%, var(--veus-yellow-hover) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-sub {
  font-size: 18px;
  color: var(--veus-ink-muted);
  margin: 0 0 24px;
  max-width: 56ch;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-art {
  width: 200px;
  height: 200px;
  display: grid;
  place-items: center;
  position: relative;
}
.hero-art-circle {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, var(--veus-yellow) 0%, rgba(255, 179, 22, 0) 70%);
  opacity: 0.35;
  animation: hero-pulse 3.5s ease-in-out infinite;
}
@keyframes hero-pulse {
  0%, 100% { transform: scale(1); opacity: 0.35; }
  50%      { transform: scale(1.08); opacity: 0.55; }
}
.hero-bulb {
  width: 140px;
  height: 140px;
  color: var(--veus-yellow);
  filter: drop-shadow(0 4px 16px rgba(255, 179, 22, 0.32));
  position: relative;
  z-index: 1;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--veus-radius);
  font-family: var(--veus-font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform 100ms ease, box-shadow 180ms ease, background 120ms ease, color 120ms ease, border-color 120ms ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn--primary {
  background: var(--veus-yellow);
  color: var(--veus-yellow-ink);
  box-shadow: 0 2px 8px rgba(255, 179, 22, 0.24);
}
.btn--primary:hover {
  background: var(--veus-yellow-hover);
  box-shadow: 0 4px 14px rgba(255, 179, 22, 0.32);
  transform: translateY(-1px);
}
.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(255, 179, 22, 0.32);
}
.btn--primary:disabled,
.btn--primary[disabled] {
  background: var(--veus-border);
  color: var(--veus-ink-soft);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}
.btn--outline {
  background: transparent;
  color: var(--veus-ink);
  border-color: var(--veus-border-strong);
}
.btn--outline:hover {
  background: var(--veus-surface-2);
  border-color: var(--veus-ink);
}
.btn--ghost {
  background: transparent;
  color: var(--veus-ink-muted);
}
.btn--ghost:hover {
  background: var(--veus-surface-2);
  color: var(--veus-ink);
}
.btn svg { width: 18px; height: 18px; }

/* ---------- Section headers ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.section-title {
  font-family: var(--veus-font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.005em;
  margin: 0;
}
.section-sub {
  font-size: 14px;
  color: var(--veus-ink-muted);
  margin: 4px 0 0;
}
.section-link {
  font-size: 14px;
  color: var(--veus-yellow-focus);
  text-decoration: none;
  font-weight: 600;
}
.section-link:hover { text-decoration: underline; }

/* ---------- Stats grid ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}
.stat-card {
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-lg);
  padding: 22px;
  position: relative;
  overflow: hidden;
  transition: border-color 180ms ease, transform 180ms ease;
}
.stat-card:hover {
  border-color: var(--veus-yellow);
  transform: translateY(-2px);
}
.stat-icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--veus-yellow-soft);
  color: var(--veus-yellow-focus);
  margin-bottom: 14px;
}
.stat-icon svg { width: 20px; height: 20px; }
.stat-label {
  font-size: 13px;
  color: var(--veus-ink-muted);
  margin: 0 0 4px;
}
.stat-value {
  font-family: var(--veus-font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1;
}
.stat-trail {
  font-size: 12px;
  color: var(--veus-ink-muted);
  margin-top: 6px;
}
.stat-flame { color: #ff7f3f; }

/* ---------- Quiz cards grid ---------- */
.quizzes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.quiz-card {
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
  text-decoration: none;
  color: inherit;
}
.quiz-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--veus-shadow-lg);
  border-color: var(--veus-yellow);
}

.quiz-thumb {
  height: 140px;
  position: relative;
  display: grid;
  place-items: center;
  color: #ffffff;
  isolation: isolate;
  overflow: hidden;
}
.quiz-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.15) 1px, transparent 1px);
  background-size: 14px 14px;
  z-index: 0;
  opacity: 0.6;
}
.quiz-thumb svg {
  width: 56px;
  height: 56px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
}

.quiz-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 12px;
}
.quiz-card-title {
  font-family: var(--veus-font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.005em;
  line-height: 1.2;
  margin: 0;
}
.quiz-tagline {
  font-size: 14px;
  color: var(--veus-ink-muted);
  margin: 0;
  line-height: 1.45;
  flex: 1;
}
.quiz-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  font-size: 13px;
  color: var(--veus-ink-muted);
}
.quiz-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.quiz-meta-item svg { width: 14px; height: 14px; }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: var(--veus-radius-pill);
  background: var(--veus-surface-2);
  color: var(--veus-ink-muted);
  letter-spacing: 0.04em;
}

.difficulty {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--veus-radius-pill);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.difficulty::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.difficulty--facil {
  background: var(--veus-success-soft);
  color: var(--veus-success);
}
.difficulty--medio {
  background: var(--veus-warning-soft);
  color: var(--veus-warning);
}
.difficulty--dificil {
  background: var(--veus-danger-soft);
  color: var(--veus-danger);
}

.quiz-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 8px;
}

/* ---------- Leaderboard ---------- */
.home-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 32px;
}

.leaderboard {
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-lg);
  padding: 22px 24px;
}
.lb-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.lb-row {
  display: grid;
  grid-template-columns: 32px 36px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 8px;
  border-radius: 10px;
  transition: background 120ms ease;
}
.lb-row:hover { background: var(--veus-surface-2); }
.lb-row.is-self {
  background: var(--veus-yellow-soft);
  border: 1px solid var(--veus-yellow);
}
.lb-rank {
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--veus-ink-muted);
  text-align: center;
}
.lb-rank--gold   { color: #d4a017; font-size: 20px; }
.lb-rank--silver { color: #98a0a8; font-size: 20px; }
.lb-rank--bronze { color: #b87333; font-size: 20px; }

.lb-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--veus-surface-2);
  color: var(--veus-ink);
  display: grid;
  place-items: center;
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 12px;
  border: 1px solid var(--veus-border);
}
.lb-name { font-size: 14px; font-weight: 500; }
.lb-self-tag {
  font-size: 11px;
  color: var(--veus-yellow-focus);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lb-points {
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
}

/* =====================================================================
   PLAY PAGE
   ===================================================================== */

.play {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--veus-bg);
}

.play-topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 18px 32px;
  border-bottom: 1px solid var(--veus-border);
  background: var(--veus-bg);
  position: sticky;
  top: 0;
  z-index: 30;
}

.play-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--veus-ink-muted);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 10px;
  transition: background 120ms ease, color 120ms ease;
}
.play-back:hover {
  background: var(--veus-surface-2);
  color: var(--veus-ink);
}
.play-back svg { width: 18px; height: 18px; }

.play-progress-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.play-progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.play-quiz-title {
  font-family: var(--veus-font-display);
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.play-step {
  color: var(--veus-ink-muted);
  font-variant-numeric: tabular-nums;
}
.progress-bar {
  height: 6px;
  background: var(--veus-surface-2);
  border-radius: var(--veus-radius-pill);
  overflow: hidden;
  position: relative;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--veus-yellow-hover), var(--veus-yellow));
  border-radius: var(--veus-radius-pill);
  transition: width 380ms cubic-bezier(0.0, 0.0, 0.2, 1);
  position: relative;
}
.progress-fill::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.45), transparent);
  animation: progress-shine 2s linear infinite;
}
@keyframes progress-shine {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.timer {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  padding: 8px 14px;
  border-radius: var(--veus-radius-pill);
  font-variant-numeric: tabular-nums;
  font-family: var(--veus-font-display);
  font-weight: 600;
  font-size: 14px;
}
.timer svg { width: 16px; height: 16px; color: var(--veus-ink-muted); }
.timer.is-warning {
  background: var(--veus-warning-soft);
  border-color: var(--veus-warning);
  color: var(--veus-warning);
}
.timer.is-critical {
  background: var(--veus-danger-soft);
  border-color: var(--veus-danger);
  color: var(--veus-danger);
  animation: timer-pulse 1s ease-in-out infinite;
}
@keyframes timer-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.04); }
}

.play-stage {
  flex: 1;
  padding: 48px 24px 60px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.q-card {
  width: 100%;
  max-width: 720px;
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-2xl);
  padding: 40px 44px;
  box-shadow: var(--veus-shadow-md);
}

.q-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--veus-ink-muted);
}
.q-eyebrow strong {
  color: var(--veus-yellow-focus);
  font-family: var(--veus-font-display);
  letter-spacing: 0.16em;
}

.q-prompt {
  font-family: var(--veus-font-display);
  font-size: clamp(1.5rem, 1.4vw + 1rem, 2rem);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.005em;
  margin: 0 0 28px;
}

.q-hint {
  font-size: 13px;
  color: var(--veus-ink-muted);
  margin: -16px 0 22px;
  font-style: italic;
}

/* Options */
.options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}
.option {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--veus-bg);
  border: 2px solid var(--veus-border);
  border-radius: var(--veus-radius);
  text-align: left;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease, box-shadow 180ms ease;
  position: relative;
  font-size: 16px;
  line-height: 1.4;
  color: var(--veus-ink);
  width: 100%;
}
.option:hover:not([disabled]) {
  transform: scale(1.015);
  border-color: var(--veus-yellow);
  box-shadow: 0 2px 10px rgba(255, 179, 22, 0.12);
}
.option:active:not([disabled]) {
  transform: scale(1);
}
.option[disabled] { cursor: default; }

.option-letter {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--veus-yellow);
  color: var(--veus-yellow-ink);
  display: grid;
  place-items: center;
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 16px;
  transition: transform 120ms ease;
}
.option-text { flex: 1; }
.option-mark {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--veus-bg);
  opacity: 0;
  transition: opacity 180ms ease;
}
.option-mark svg { width: 100%; height: 100%; }

.option.is-selected {
  background: var(--veus-yellow-soft);
  border-color: var(--veus-yellow);
}
.option.is-correct {
  background: var(--veus-success-soft);
  border-color: var(--veus-success);
  animation: opt-correct 380ms ease;
}
.option.is-correct .option-letter {
  background: var(--veus-success);
  color: #ffffff;
}
.option.is-correct .option-mark {
  color: var(--veus-success);
  opacity: 1;
}
.option.is-wrong {
  background: var(--veus-danger-soft);
  border-color: var(--veus-danger);
  animation: opt-wrong 380ms ease;
}
.option.is-wrong .option-letter {
  background: var(--veus-danger);
  color: #ffffff;
}
.option.is-wrong .option-mark {
  color: var(--veus-danger);
  opacity: 1;
}
@keyframes opt-correct {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.03); }
  100% { transform: scale(1); }
}
@keyframes opt-wrong {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-6px); }
  40%      { transform: translateX(6px); }
  60%      { transform: translateX(-4px); }
  80%      { transform: translateX(4px); }
}

/* Fill input */
.fill-input {
  width: 100%;
  padding: 18px 22px;
  background: var(--veus-bg);
  border: 2px solid var(--veus-border);
  border-radius: var(--veus-radius);
  font-size: 18px;
  font-family: var(--veus-font-body);
  transition: border-color 120ms ease;
  margin-bottom: 28px;
}
.fill-input:focus {
  border-color: var(--veus-yellow);
  outline: none;
}
.fill-input.is-correct { border-color: var(--veus-success); background: var(--veus-success-soft); }
.fill-input.is-wrong   { border-color: var(--veus-danger);  background: var(--veus-danger-soft); }

/* Order (drag list) */
.order-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.order-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: var(--veus-bg);
  border: 2px solid var(--veus-border);
  border-radius: var(--veus-radius);
  cursor: grab;
  transition: transform 120ms ease, border-color 120ms ease, box-shadow 180ms ease;
  user-select: none;
}
.order-item:hover { border-color: var(--veus-yellow); }
.order-item.is-dragging {
  opacity: 0.65;
  cursor: grabbing;
  border-style: dashed;
  border-color: var(--veus-yellow-focus);
  background: var(--veus-yellow-soft);
}
.order-item.drag-over-top    { box-shadow: 0 -3px 0 var(--veus-yellow); }
.order-item.drag-over-bottom { box-shadow: 0 3px 0 var(--veus-yellow); }
.order-handle {
  width: 24px;
  height: 24px;
  color: var(--veus-ink-soft);
  flex-shrink: 0;
}
.order-handle svg { width: 100%; height: 100%; }
.order-index {
  width: 28px;
  height: 28px;
  background: var(--veus-yellow);
  color: var(--veus-yellow-ink);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}
.order-text { flex: 1; font-size: 15px; }

/* Feedback after confirm */
.q-feedback {
  margin-bottom: 24px;
  padding: 18px 20px;
  border-radius: var(--veus-radius);
  border-left: 4px solid var(--veus-yellow);
  background: var(--veus-surface-2);
  animation: fb-in 320ms cubic-bezier(0.0, 0.0, 0.2, 1);
}
@keyframes fb-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.q-feedback.is-correct {
  background: var(--veus-success-soft);
  border-left-color: var(--veus-success);
}
.q-feedback.is-wrong {
  background: var(--veus-danger-soft);
  border-left-color: var(--veus-danger);
}
.q-feedback-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--veus-font-display);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.q-feedback.is-correct .q-feedback-head { color: var(--veus-success); }
.q-feedback.is-wrong   .q-feedback-head { color: var(--veus-danger); }
.q-feedback-head svg { width: 20px; height: 20px; }
.q-feedback-body {
  font-size: 14px;
  color: var(--veus-ink);
  line-height: 1.5;
}
.q-points {
  font-family: var(--veus-font-display);
  font-weight: 700;
  color: var(--veus-yellow-focus);
}

.q-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.q-keys {
  font-size: 12px;
  color: var(--veus-ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.kbd {
  display: inline-block;
  padding: 2px 6px;
  border: 1px solid var(--veus-border-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--veus-surface);
  font-family: ui-monospace, "Cascadia Mono", "Source Code Pro", monospace;
  font-size: 11px;
  color: var(--veus-ink);
}

/* Confetti (correct) */
.confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 60;
  overflow: hidden;
}
.confetti-piece {
  position: absolute;
  width: 8px;
  height: 14px;
  top: -20px;
  border-radius: 2px;
  animation: confetti-fall 1500ms cubic-bezier(0.45, 0.0, 0.55, 1) forwards;
}
@keyframes confetti-fall {
  0%   { transform: translateY(0) rotate(0deg);   opacity: 1; }
  100% { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

/* =====================================================================
   RESULT PAGE
   ===================================================================== */

.result-stage {
  flex: 1;
  padding: 48px 24px 80px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.result-card {
  width: 100%;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.result-hero {
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-2xl);
  padding: 44px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.result-hero::before {
  content: "";
  position: absolute;
  top: -40px;
  left: 50%;
  width: 320px;
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--veus-yellow-soft) 0%, transparent 70%);
  z-index: 0;
}
.result-hero > * { position: relative; z-index: 1; }

.result-icon {
  width: 110px;
  height: 110px;
  margin: 0 auto 18px;
  color: var(--veus-yellow);
  filter: drop-shadow(0 4px 14px rgba(255, 179, 22, 0.28));
}

.result-score {
  font-family: var(--veus-font-display);
  font-size: clamp(2.6rem, 4vw + 1rem, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1;
  margin: 0 0 8px;
}
.result-score-pct { color: var(--veus-yellow-focus); }
.result-summary-label {
  font-size: 15px;
  color: var(--veus-ink-muted);
  margin: 0 0 16px;
}

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: var(--veus-radius-pill);
  font-family: var(--veus-font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.result-badge svg { width: 16px; height: 16px; }
.result-badge--ok {
  background: var(--veus-success-soft);
  color: var(--veus-success);
}
.result-badge--mid {
  background: var(--veus-warning-soft);
  color: var(--veus-warning);
}
.result-badge--low {
  background: var(--veus-danger-soft);
  color: var(--veus-danger);
}

.result-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.detail-card {
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-lg);
  padding: 18px 20px;
  text-align: center;
}
.detail-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--veus-ink-muted);
  margin: 0 0 6px;
}
.detail-value {
  font-family: var(--veus-font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.detail-trail {
  font-size: 12px;
  color: var(--veus-ink-muted);
  margin-top: 4px;
}
.detail-trail--up { color: var(--veus-success); }

.review-card {
  background: var(--veus-surface);
  border: 1px solid var(--veus-border);
  border-radius: var(--veus-radius-lg);
  overflow: hidden;
}
.review-head {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--veus-border);
}
.review-title {
  font-family: var(--veus-font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.005em;
}
.review-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.review-item {
  border-bottom: 1px solid var(--veus-border);
}
.review-item:last-child { border-bottom: 0; }
.review-summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 24px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  transition: background 120ms ease;
}
.review-summary::-webkit-details-marker { display: none; }
.review-summary:hover { background: var(--veus-surface-2); }
.review-status {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.review-status--ok   { background: var(--veus-success-soft); color: var(--veus-success); }
.review-status--fail { background: var(--veus-danger-soft);  color: var(--veus-danger); }
.review-status svg { width: 16px; height: 16px; }
.review-q { line-height: 1.4; }
.review-chev {
  width: 18px;
  height: 18px;
  color: var(--veus-ink-soft);
  transition: transform 200ms ease;
}
details[open] .review-chev { transform: rotate(180deg); }
.review-detail {
  padding: 0 24px 18px 66px;
  font-size: 14px;
  color: var(--veus-ink-muted);
  line-height: 1.55;
}
.review-detail strong { color: var(--veus-ink); }

.result-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Certificate modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(31, 26, 20, 0.55);
  display: grid;
  place-items: center;
  padding: 24px;
  z-index: 70;
  animation: modal-in 180ms ease;
}
[data-theme="dark"] .modal-backdrop { background: rgba(0, 0, 0, 0.65); }
@keyframes modal-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.modal {
  background: var(--veus-bg);
  border-radius: var(--veus-radius-2xl);
  padding: 28px;
  width: 100%;
  max-width: 720px;
  box-shadow: var(--veus-shadow-lg);
  animation: modal-pop 220ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes modal-pop {
  from { opacity: 0; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.modal-title {
  font-family: var(--veus-font-display);
  font-size: 20px;
  font-weight: 700;
}
.modal-close {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--veus-ink-muted);
}
.modal-close:hover { background: var(--veus-surface-2); color: var(--veus-ink); }
.modal-close svg { width: 20px; height: 20px; }

.certificate {
  border: 3px double var(--veus-border-strong);
  border-radius: var(--veus-radius-lg);
  padding: 36px 36px 30px;
  background: var(--veus-surface);
  position: relative;
  text-align: center;
  margin-bottom: 18px;
}
.cert-corner {
  position: absolute;
  width: 32px;
  height: 32px;
  color: var(--veus-yellow);
}
.cert-corner--tl { top: 10px; left: 10px; }
.cert-corner--tr { top: 10px; right: 10px; transform: rotate(90deg); }
.cert-corner--bl { bottom: 10px; left: 10px; transform: rotate(-90deg); }
.cert-corner--br { bottom: 10px; right: 10px; transform: rotate(180deg); }
.cert-eyebrow {
  font-size: 11px;
  letter-spacing: 0.30em;
  text-transform: uppercase;
  color: var(--veus-ink-muted);
  margin: 0 0 8px;
}
.cert-title {
  font-family: var(--veus-font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 18px;
}
.cert-name {
  font-family: var(--veus-font-display);
  font-size: 30px;
  letter-spacing: -0.005em;
  font-weight: 700;
  color: var(--veus-yellow-focus);
  margin: 0 0 8px;
}
.cert-body {
  font-size: 14px;
  color: var(--veus-ink-muted);
  line-height: 1.6;
  margin: 0 auto 18px;
  max-width: 50ch;
}
.cert-body strong { color: var(--veus-ink); }
.cert-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--veus-ink-muted);
}
.cert-sig-line {
  border-top: 1px solid var(--veus-border-strong);
  padding-top: 6px;
}
.cert-sig-line strong { display: block; color: var(--veus-ink); font-family: var(--veus-font-display); font-size: 13px; }

/* =====================================================================
   Drawer / Mobile menu
   ===================================================================== */

@media (max-width: 960px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 280px;
    transform: translateX(-100%);
    transition: transform 240ms cubic-bezier(0.0, 0.0, 0.2, 1);
    z-index: 50;
    height: 100vh;
    box-shadow: var(--veus-shadow-lg);
  }
  .sidebar.is-open { transform: translateX(0); }
  .menu-toggle { display: inline-grid; }
  .drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(31, 26, 20, 0.45);
    z-index: 40;
    opacity: 0;
    visibility: hidden;
    transition: opacity 200ms ease;
  }
  .drawer-backdrop.is-open {
    opacity: 1;
    visibility: visible;
  }
}

/* =====================================================================
   Responsive
   ===================================================================== */

@media (max-width: 1100px) {
  .quizzes-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .content { padding: 20px; }
  .topbar { padding: 14px 18px; }
  .hero { padding: 28px 22px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { width: 130px; height: 130px; justify-self: start; }
  .hero-bulb { width: 90px; height: 90px; }
  .hero-title { font-size: clamp(2rem, 7vw, 2.6rem); }
  .quizzes-grid { grid-template-columns: 1fr; }
  .play-topbar { grid-template-columns: auto 1fr; row-gap: 8px; padding: 14px 18px; }
  .play-topbar .timer { grid-column: 1 / -1; justify-self: end; }
  .play-stage { padding: 22px 16px 40px; }
  .q-card { padding: 24px 22px; }
  .q-prompt { font-size: clamp(1.25rem, 5vw, 1.6rem); }
  .result-stage { padding: 22px 16px 40px; }
  .result-hero { padding: 28px 22px; }
  .result-detail { grid-template-columns: 1fr; }
  .q-actions { flex-direction: column; align-items: stretch; }
  .q-keys { display: none; }
  .cert-footer { grid-template-columns: 1fr; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .confetti { display: none !important; }
  .progress-fill::after { display: none; }
}

/* Utility */
.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;
}
[hidden] { display: none !important; }