/* ═══════════════════════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Theme vars — defaults for home; overridden by JS per-test */
  --primary:      #7C3AED;
  --accent:       #EC4899;
  --text-color:   #1A0A2E;
  --text-second:  rgba(26,10,46,0.60);
  --card-bg:      rgba(255,255,255,0.88);
  --card-border:  rgba(124,58,237,0.12);

  /* Home identity — never overridden */
  --home-bg:      #FAF8FF;
  --home-surface: #FFFFFF;
  --home-purple:  #7C3AED;
  --home-pink:    #EC4899;
  --home-text:    #1A0A2E;
  --home-muted:   rgba(26,10,46,0.52);

  /* Tokens */
  --radius:    20px;
  --radius-sm: 12px;
  --ease:      0.22s cubic-bezier(0.4,0,0.2,1);
  --ease-pop:  0.38s cubic-bezier(0.34,1.56,0.64,1);
  --shadow:    0 4px 24px rgba(124,58,237,0.09);
  --shadow-lg: 0 14px 44px rgba(124,58,237,0.18);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family:
    'Noto Sans KR',
    'Apple SD Gothic Neo',
    'Malgun Gothic', '맑은 고딕',
    sans-serif;
  background: var(--home-bg);
  color: var(--home-text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body.theme-active {
  background: transparent;
  color: var(--text-color);
}

button { font-family: inherit; }

/* ═══════════════════════════════════════════════════════════
   FIXED LAYERS
═══════════════════════════════════════════════════════════ */

/* Noise grain for home page */
.noise-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.038;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 300px 300px;
}

/*
  Background layer: JS injects theme gradient here.
  FUTURE: swap background-image to AI-generated image URL.
*/
.bg-image-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-size: cover;
  background-position: center;
  transition: background 0.5s ease;
}

/* ═══════════════════════════════════════════════════════════
   HOME — HEADER
═══════════════════════════════════════════════════════════ */
.home-header {
  position: relative;
  z-index: 2;
  padding: 52px 20px 28px;
  text-align: center;
}

.home-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--home-purple);
  margin-bottom: 14px;
}

.home-title {
  font-family:
    'Black Han Sans',
    'GmarketSansBold', 'GmarketSans',
    'AppleSDGothicNeo-Bold',
    '나눔고딕ExtraBold', '나눔고딕',
    sans-serif;
  font-size: clamp(38px, 11vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #6D28D9 0%, #A855F7 45%, #EC4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}

.home-subtitle {
  font-size: 15px;
  color: var(--home-muted);
  font-weight: 400;
}

/* ═══════════════════════════════════════════════════════════
   HOME — SECTIONS  (independent blocks, easy to extend)
═══════════════════════════════════════════════════════════ */
.home-main {
  position: relative;
  z-index: 2;
  padding: 0 16px 72px;
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

/* Generic section wrapper */
.home-section { width: 100%; }

.section-label {
  font-family:
    'Black Han Sans',
    'GmarketSansBold', 'GmarketSans',
    'AppleSDGothicNeo-Bold',
    '나눔고딕', sans-serif;
  font-size: 18px;
  color: var(--home-text);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

/* ── Featured section grid ────────────────────── */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 560px) {
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
}

/*
  Featured card — poster style.
  Gradient fills the whole card; text sits at the bottom.
  fc-thumb is the FUTURE AI image layer (currently transparent,
  shows the card's gradient bg through it).
*/
.featured-card {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  cursor: pointer;
  background: linear-gradient(
    145deg,
    var(--fc-bg-s, #4C1D95) 0%,
    var(--fc-bg-e, #831843) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 196px;
  transition: transform var(--ease-pop), box-shadow var(--ease);
  box-shadow: 0 6px 28px rgba(0,0,0,0.22);
}

/*
  Future thumbnail image layer.
  Add background-image: url(...) here to show an AI-generated image.
  Currently transparent so the card gradient shows through.
*/
.fc-thumb {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  /* Scrim: darkens the image bottom so text is readable */
  pointer-events: none;
}

/* Scrim gradient — always present, ensures text legibility */
.fc-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 20%,
    rgba(0,0,0,0.55) 100%
  );
}

/* Decorative circles — abstract geometric accent */
.featured-card::before {
  content: '';
  position: absolute;
  top: -48px;
  right: -32px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
  pointer-events: none;
  transition: transform var(--ease-pop);
}

.featured-card:hover::before {
  transform: scale(1.12);
}

.featured-card:hover,
.featured-card:focus-visible {
  transform: translateY(-6px) scale(1.015);
  box-shadow: 0 16px 48px rgba(0,0,0,0.30);
  outline: none;
}

.featured-card:active {
  transform: translateY(-2px) scale(1.005);
  transition-duration: 0.1s;
}

.fc-body {
  position: relative;
  z-index: 1;   /* above fc-thumb */
  padding: 20px 22px 20px;
}

.fc-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 5px;
  word-break: keep-all;
  text-shadow: 0 1px 6px rgba(0,0,0,0.3);
}

.fc-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.78);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.fc-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.fc-q {
  font-size: 11px;
  font-weight: 700;
  background: rgba(255,255,255,0.18);
  color: #fff;
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.03em;
}

.fc-cta {
  font-size: 13px;
  font-weight: 700;
  color: var(--fc-acc, #EC4899);
  letter-spacing: 0.02em;
  transition: transform var(--ease);
  text-shadow: none;
}

.featured-card:hover .fc-cta { transform: translateX(4px); }

/* ── All-tests section ────────────────────────── */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 560px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  /* Rhythmic offset: every other card steps down */
  .card-offset { margin-top: 24px; }
}

@media (min-width: 860px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}

.test-card {
  position: relative;
  background: var(--home-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition:
    transform var(--ease-pop),
    box-shadow var(--ease);
}

.test-card:hover,
.test-card:focus-visible {
  transform: translateY(-8px) rotate(1.2deg);
  box-shadow: var(--shadow-lg);
  outline: none;
}

.test-card:active {
  transform: translateY(-3px) rotate(0.5deg);
  transition-duration: 0.1s;
}

/*
  Thumbnail block — gradient colour face, future AI image slot.
  To add an image later: .card-thumb { background-image: url(...); }
*/
.card-thumb {
  height: 96px;
  flex-shrink: 0;
  background: linear-gradient(
    135deg,
    var(--card-accent-a, #7C3AED) 0%,
    var(--card-accent-b, #EC4899) 100%
  );
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
  transition: transform var(--ease-pop);
  transform-origin: center top;
}

/* Subtle inner vignette for depth */
.card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.04) 0%,
    rgba(0,0,0,0.14) 100%
  );
}

/* Decorative abstract shape in thumbnail */
.card-thumb::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(255,255,255,0.10);
  pointer-events: none;
}

.test-card:hover .card-thumb {
  transform: scale(1.04);
}

.card-content {
  padding: 16px 18px 8px;
  flex: 1;
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--home-text);
  margin-bottom: 5px;
  word-break: keep-all;
}

.card-desc {
  font-size: 13px;
  color: var(--home-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.card-q-count {
  font-size: 11px;
  font-weight: 700;
  background: #F3EEFF;
  color: var(--home-purple);
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}

.card-vibe {
  font-size: 11px;
  color: var(--home-muted);
  font-style: italic;
}

.card-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--home-purple);
  position: relative;
  z-index: 1;
}

.cta-arrow {
  display: inline-block;
  transition: transform var(--ease);
}

.test-card:hover .cta-arrow { transform: translateX(5px); }

/* ═══════════════════════════════════════════════════════════
   HOME — EMPTY STATE
═══════════════════════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--home-muted);
}
.empty-emoji { font-size: 56px; margin-bottom: 16px; }
.empty-state p { font-size: 15px; line-height: 1.8; }
.empty-hint { font-size: 13px; margin-top: 6px; font-style: italic; }

/* ═══════════════════════════════════════════════════════════
   TEST PAGE — LAYOUT
═══════════════════════════════════════════════════════════ */
.test-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 40px;
  position: relative;
  z-index: 2;
}

.test-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 10px;
}

.back-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-color);
  cursor: pointer;
  transition: background var(--ease);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.back-btn:hover { opacity: 0.8; }

.test-counter {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-second);
  letter-spacing: 0.04em;
}

/* Progress bar */
.progress-track {
  height: 3px;
  background: rgba(255,255,255,0.18);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 20px 36px;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.48s cubic-bezier(0.34,1.56,0.64,1);
  box-shadow: 0 0 8px var(--accent);
}

/* ═══════════════════════════════════════════════════════════
   QUESTION CARD (FROSTED GLASS)
═══════════════════════════════════════════════════════════ */
.question-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 0 16px;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
}

.question-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 28px 24px;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.question-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.question-number {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.question-text {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text-color);
}

/* ═══════════════════════════════════════════════════════════
   OPTIONS
═══════════════════════════════════════════════════════════ */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.option-btn {
  width: 100%;
  background: var(--card-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 15px 18px;
  text-align: left;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--text-color);
  cursor: pointer;
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.option-btn:hover:not(:disabled) {
  border-color: var(--accent);
  transform: translateX(6px);
  background: var(--card-bg);
}

.option-btn.selected {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  transform: translateX(6px);
}

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

/* ═══════════════════════════════════════════════════════════
   RESULT PAGE
═══════════════════════════════════════════════════════════ */
.result-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 16px 60px;
  position: relative;
  z-index: 2;
  gap: 18px;
}

/*
  Screenshot card — designed to fit in a single mobile viewport.
  Target: ≤ 420px height on 375px-wide screen (leaves room for buttons).
*/
.result-screenshot-card {
  background: var(--card-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--card-border);
  border-radius: 28px;
  padding: 26px 22px 16px;
  width: 100%;
  max-width: 380px;
  position: relative;
  overflow: hidden;

  /* Reveal animation */
  opacity: 0;
  transform: translateY(28px) scale(0.97);
  transition: opacity 0.42s ease, transform 0.42s cubic-bezier(0.34,1.56,0.64,1);
}

.result-screenshot-card.visible {
  opacity: 1;
  transform: none;
}

/* Decorative ambient glow inside card */
.result-screenshot-card::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: radial-gradient(
    ellipse at 50% 30%,
    var(--accent) 0%,
    transparent 60%
  );
  opacity: 0.10;
  pointer-events: none;
}

.result-screenshot-card > * { position: relative; }

.result-emoji {
  font-size: 76px;
  text-align: center;
  line-height: 1;
  margin-bottom: 8px;
  filter: drop-shadow(0 4px 14px rgba(0,0,0,0.14));
}

.result-badge {
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.result-title {
  font-family:
    'Black Han Sans',
    'GmarketSansBold', 'GmarketSans',
    'AppleSDGothicNeo-Bold',
    '나눔고딕ExtraBold', '나눔고딕',
    sans-serif;
  font-size: 30px;
  line-height: 1.2;
  text-align: center;
  color: var(--text-color);
  margin-bottom: 5px;
}

.result-subtitle {
  font-size: 14px;
  text-align: center;
  color: var(--text-second);
  font-style: italic;
  line-height: 1.55;
  margin-bottom: 14px;
}

.result-traits {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  justify-content: center;
  margin-bottom: 12px;
}

.trait-pill {
  background: rgba(255,255,255,0.18);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-color);
  white-space: nowrap;
}

.result-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-second);
  text-align: center;
  /* Clamp to 3 lines — keeps card compact for screenshot */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Watermark — visible in screenshot captures */
.result-watermark {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--card-border);
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-second);
  opacity: 0.65;
}

/* ═══════════════════════════════════════════════════════════
   RESULT — SHARE TEXT & BUTTONS
═══════════════════════════════════════════════════════════ */
.result-share-text {
  font-size: 13px;
  color: var(--text-second);
  text-align: center;
  line-height: 1.65;
  max-width: 340px;
  font-style: italic;
}

.result-actions {
  width: 100%;
  max-width: 380px;
}

.share-btn {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 15px 20px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: filter var(--ease), transform var(--ease);
  box-shadow: 0 4px 20px rgba(0,0,0,0.18);
  letter-spacing: 0.01em;
}

.share-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.22);
}

.share-btn:active { transform: translateY(0); transition-duration: 0.1s; }

.result-nav {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 380px;
}

.nav-btn {
  flex: 1;
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--ease), color var(--ease);
  border: 1.5px solid var(--card-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-retry {
  background: var(--card-bg);
  color: var(--text-color);
}

.btn-retry:hover { opacity: 0.85; }

.btn-home {
  background: transparent;
  color: var(--text-second);
  border-color: var(--card-border);
}

.btn-home:hover { color: var(--text-color); opacity: 0.85; }

/* ═══════════════════════════════════════════════════════════
   TOAST
═══════════════════════════════════════════════════════════ */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: rgba(20,8,48,0.90);
  color: #fff;
  padding: 11px 22px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.24s ease, transform 0.24s ease;
  z-index: 999;
  white-space: nowrap;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}