/* ============================================================
   Songguseer — Music Quiz Platform
   style.css  ·  Warm Cute Light Edition 🍑
   ============================================================ */

/* ── 0. Reset ────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── 1. Tokens ───────────────────────────────────────────────── */
:root {
  --bg-main:             #fdf8f0;
  --bg-card:             #ffffff;
  --bg-hint:             #fef6e4;
  --color-primary:       #f4845f;
  --color-primary-dark:  #e0673f;
  --color-secondary:     #a8d8ea;
  --color-accent:        #ffb347;
  --color-correct:       #6bcb77;
  --color-wrong:         #ff6b6b;
  --color-text:          #3d3d3d;
  --color-text-light:    #888888;
  --color-border:        #ece8e0;
  --shadow-sm:           0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:           0 4px 20px rgba(0,0,0,0.10);
  --shadow-lg:           0 8px 32px rgba(0,0,0,0.13);
  --radius-btn:          50px;
  --radius-card:         29px;
  --radius-sm:           17px;
  --transition:          0.2s ease;
  --safe-top:  env(safe-area-inset-top, 0px);
  --safe-bot:  env(safe-area-inset-bottom, 0px);
  --safe-l:    env(safe-area-inset-left, 0px);
  --safe-r:    env(safe-area-inset-right, 0px);
}

/* ── 2. Base ─────────────────────────────────────────────────── */
html { font-size: 19px; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont,
               'Segoe UI', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  background-color: var(--bg-main);
  background-image:
    radial-gradient(circle at 20% 50%, #fceabb22 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, #a8d8ea22 0%, transparent 40%),
    radial-gradient(circle at 60% 80%, #f4845f11 0%, transparent 40%);
  color: var(--color-text);
  min-height: 100dvh;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  -webkit-font-smoothing: antialiased;
}

/* bg-orb는 밝은 테마에선 숨김 */
.bg-orb { display: none; }

/* ── 3. Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 10px; }
::-webkit-scrollbar-track { background: transparent; }

/* ── 4. Screens ──────────────────────────────────────────────── */
.screen {
  display: none;
  flex-direction: column;
  min-height: 100dvh;
  max-width: 540px;
  width: 100%;
  margin: 0 auto;
  padding: 0 calc(24px + var(--safe-l)) 0 calc(24px + var(--safe-r));
}

.screen.active { display: flex; }

/* ══════════════════════════════════════════════════════════════
   START SCREEN
══════════════════════════════════════════════════════════════ */
#start-screen {
  justify-content: center;
  gap: 0;
  padding-top:    calc(34px + var(--safe-top));
  padding-bottom: calc(38px + var(--safe-bot));
}

/* Brand */
.start-header {
  margin-bottom: auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
}

.brand-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  line-height: 1;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: .22em;
  color: var(--color-text);
}

.brand-tagline {
  font-size: .7rem;
  letter-spacing: .10em;
  color: var(--color-text-light);
  text-transform: uppercase;
  padding-left: 2px;
}

/* Hero */
.start-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 44px 0 36px;
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 12px;
}

.hero-line {
  font-size: clamp(1.85rem, 7.5vw, 2.9rem);
  font-weight: 800;
  line-height: 1.22;
  color: var(--color-text);
}

.hero-line--accent {
  color: var(--color-primary);
}

.hero-sub {
  font-size: clamp(.82rem, 2.4vw, .92rem);
  color: var(--color-text-light);
  line-height: 1.65;
  max-width: 340px;
}

/* Info grid */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 34px;
}

.info-cell {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 15px;
  box-shadow: var(--shadow-sm);
}

.info-icon {
  font-size: 1.15rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 1px;
}

.info-text {
  font-size: .77rem;
  line-height: 1.55;
  color: var(--color-text-light);
}

/* ── Shared Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .03em;
  border-radius: var(--radius-btn);
  min-height: 64px;
  padding: 0 34px;
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
  overflow: hidden;
}

.btn:active { transform: scale(.96); }

.btn-start {
  width: 100%;
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(244,132,95,0.40);
  font-size: 1rem;
}

.btn-start:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 28px rgba(244,132,95,0.50);
  transform: translateY(-1px);
}

/* Ripple */
.btn.ripple::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.28);
  border-radius: inherit;
  animation: rippleAnim .4s ease-out forwards;
}

@keyframes rippleAnim {
  from { opacity: 1; transform: scale(.4); }
  to   { opacity: 0; transform: scale(1.8); }
}

/* ══════════════════════════════════════════════════════════════
   GAME SCREEN
══════════════════════════════════════════════════════════════ */
#game-screen {
  padding-top:    calc(24px + var(--safe-top));
  padding-bottom: calc(34px + var(--safe-bot));
  gap: 17px;
  min-height: 100dvh;
  height: auto;
  overflow-y: auto;
}

/* ── Status bar (3열: 문제 | 점수 | 힌트 보유) ─────────────── */
.status-bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.sb-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.sb-col--center { align-items: center; }
.sb-col--right  { align-items: flex-end; }

.sb-label {
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--color-text-light);
  text-transform: uppercase;
}

.sb-val {
  font-size: 1.7rem;
  font-weight: 900;
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -.02em;
}

.sb-val--score { color: var(--color-primary); }

/* ── 남은 기회 행 ────────────────────────────────────────────── */
.lives-bar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lives-label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.lives-row { display: flex; gap: 4px; }

.life-icon {
  font-size: 1.5rem;
  line-height: 1;
  transition: color .25s;
}

.life-active { color: var(--color-wrong); }
.life-lost   { color: var(--color-border); }

/* ── Tokens ──────────────────────────────────────────────────── */
.tokens-row { display: flex; align-items: center; gap: 2px; }
.token-icon  { font-size: 1.35rem; line-height: 1; }
.token-empty { font-size: 1.35rem; color: var(--color-border); }
.token-plus  { font-size: .75rem; font-weight: 700; color: var(--color-text-light); }

/* ── Stage Card ──────────────────────────────────────────────── */
.stage-card {
  background: var(--bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 22px 24px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-md);
}

/* 카드 상단: 힌트 N/3 배지 */
.card-top {
  display: flex;
  align-items: center;
}

.hint-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary);
  border-radius: 999px;
  padding: 5px 14px 5px 12px;
}

.hint-badge-label {
  font-size: .72rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .04em;
}

.hint-badge-count {
  font-size: .72rem;
  font-weight: 700;
  color: rgba(255,255,255,0.75);
}

/* 아티스트 행 */
.stage-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fef6f2;
  border: 1px solid rgba(244,132,95,0.15);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
}

.artist-row {
  display: flex;
  align-items: center;
  gap: 7px;
}

.artist-icon { font-size: .9rem; line-height: 1; }

.artist-label {
  font-size: .72rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.stage-artist {
  font-size: .88rem;
  font-weight: 800;
  color: var(--color-primary);
}

.stage-decade {
  font-size: .72rem;
  font-weight: 700;
  color: var(--color-text-light);
  background: var(--bg-main);
  border: 1px solid var(--color-border);
  padding: 3px 10px;
  border-radius: 999px;
}

/* Divider */
.stage-divider {
  height: 1px;
  background: var(--color-border);
  margin: -4px 0;
}

/* Hints container */
.hints-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Hint item */
.hint-item {
  position: relative;
  padding: 12px 14px 12px 14px;
  background: var(--bg-hint);
  border: 1.5px solid #f0e4cc;
  border-left: 3px solid #ddc89a;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  line-height: 1.65;
  color: var(--color-text);
  animation: fadeSlideIn .3s ease-out both;
}

.hint-ai {
  background: #fff3ee;
  border-color: rgba(244,132,95,0.22);
  border-left: 3px solid var(--color-primary);
}

/* 힌트 라벨 — 좌상단 가로 작게 */
.hint-item::before {
  content: attr(data-num);
  display: block;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-primary);
  margin-bottom: 4px;
  line-height: 1;
}

/* AI한줄평은 주황, 나머지는 회색 */
.hint-item:not(.hint-ai)::before {
  color: var(--color-text-light);
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Hint Button ─────────────────────────────────────────────── */
.btn-hint {
  width: 100%;
  background: var(--bg-hint);
  border: 1.5px solid #f0e4cc;
  color: var(--color-text);
  border-radius: var(--radius-btn);
  min-height: 60px;
  font-family: inherit;
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .02em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.btn-hint:hover:not(:disabled) {
  border-color: var(--color-primary);
  background: #fff3ee;
  box-shadow: var(--shadow-md);
}

.btn-hint:active:not(:disabled) { transform: scale(.97); }

.btn-hint:disabled,
.btn-no-token {
  opacity: .45;
  cursor: not-allowed;
}

.hint-btn-bulb { font-size: 1rem; line-height: 1; }

/* ── Answer Section ──────────────────────────────────────────── */
.answer-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.input-shell {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-btn);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.input-shell:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(244,132,95,0.15), var(--shadow-md);
}

.answer-input {
  flex: 1;
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
  padding: 15px 22px;
  line-height: 1.4;
  caret-color: var(--color-primary);
}

.answer-input::placeholder {
  color: var(--color-text-light);
  font-size: .88rem;
}

/* Submit — 독립 버튼 */
.btn-submit {
  width: 100%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-btn);
  min-height: 62px;
  font-family: inherit;
  font-size: .95rem;
  font-weight: 800;
  letter-spacing: .04em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(244,132,95,0.35);
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
  overflow: hidden;
}

.btn-submit:hover  { background: var(--color-primary-dark); box-shadow: 0 6px 24px rgba(244,132,95,0.45); }
.btn-submit:active { transform: scale(.97); }
.btn-submit:disabled { opacity: .4; cursor: not-allowed; }

/* Feedback */
.feedback {
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .02em;
  min-height: 22px;
  text-align: center;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity .2s, transform .2s;
}

.feedback.show  { opacity: 1; transform: translateY(0); }
.feedback.correct { color: var(--color-correct); }
.feedback.wrong   { color: var(--color-wrong); }

/* ══════════════════════════════════════════════════════════════
   RESULT SCREEN
══════════════════════════════════════════════════════════════ */
#result-screen {
  align-items: center;
  justify-content: center;
  padding-top:    calc(48px + var(--safe-top));
  padding-bottom: calc(48px + var(--safe-bot));
  text-align: center;
}

.result-wordmark {
  font-size: clamp(5rem, 22vw, 9rem);
  font-weight: 900;
  letter-spacing: .18em;
  color: rgba(244, 132, 95, 0.08);
  line-height: 1;
  user-select: none;
  pointer-events: none;
  margin-bottom: -0.32em;
}

.result-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 38px;
  position: relative;
  z-index: 1;
}

.result-pretitle {
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--color-text-light);
  text-transform: uppercase;
  font-weight: 600;
}

.result-big {
  font-size: clamp(5rem, 22vw, 8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--color-primary);
  filter: drop-shadow(0 4px 16px rgba(244,132,95,0.30));
}

.result-caption {
  font-size: 1rem;
  color: var(--color-text-light);
  letter-spacing: .04em;
  font-weight: 500;
}

/* Share box */
.result-share-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
  max-width: 340px;
  margin-bottom: 28px;
  background: var(--bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 22px 20px;
  box-shadow: var(--shadow-md);
}

.result-share-msg {
  font-size: .88rem;
  color: var(--color-text-light);
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
}

/* Share button */
.btn-share {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  background: linear-gradient(135deg, #a8d8ea 0%, #7ec8e3 100%);
  color: #1a4a5e;
  border: none;
  border-radius: var(--radius-btn);
  min-height: 52px;
  font-family: inherit;
  font-size: .92rem;
  font-weight: 800;
  letter-spacing: .03em;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(168,216,234,0.50);
  transition: all var(--transition);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
  overflow: hidden;
}

.btn-share:hover  { opacity: .9; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(168,216,234,0.60); }
.btn-share:active { transform: scale(.97); }

/* 복사 완료 상태 */
.btn-share.copied {
  background: linear-gradient(135deg, #6bcb77 0%, #4caf60 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(107,203,119,0.45);
}

/* Actions */
.result-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
  max-width: 380px;
}

.btn-text {
  background: transparent;
  border: none;
  color: var(--color-text-light);
  font-family: inherit;
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: .04em;
  cursor: pointer;
  min-height: 44px;
  padding: 0 16px;
  transition: color var(--transition);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

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

/* ── Toast ───────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: calc(28px + var(--safe-bot));
  left: 50%;
  transform: translateX(-50%) translateY(18px);
  background: var(--bg-card);
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  font-size: .83rem;
  font-weight: 700;
  letter-spacing: .03em;
  padding: 11px 22px;
  border-radius: 999px;
  white-space: nowrap;
  opacity: 0;
  z-index: 999;
  box-shadow: var(--shadow-lg);
  transition: opacity .25s, transform .25s;
  pointer-events: none;
}

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

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 390px) {
  .info-grid { grid-template-columns: 1fr; }
  .hero-line  { font-size: 1.7rem; }
}