/* ─── 기본 설정 (라이트 모드) ─── */
:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-bg: #eef2ff;
  --text: #1e1e2e;
  --text-muted: #6b7280;
  --bg: #f8f9fc;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --header-bg: #ffffff;
  --footer-bg: #ffffff;
  --input-bg: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 2px 16px rgba(0,0,0,0.07);
  --shadow-hover: 0 8px 32px rgba(99,102,241,0.15);
}

/* ─── 다크 모드 ─── */
[data-theme="dark"] {
  --primary: #818cf8;
  --primary-light: #a5b4fc;
  --primary-bg: #1e1e3a;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --bg: #0f0f23;
  --card-bg: #1a1a2e;
  --border: #2d2d44;
  --header-bg: #1a1a2e;
  --footer-bg: #1a1a2e;
  --input-bg: #0f0f23;
  --shadow: 0 2px 16px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 32px rgba(129,140,248,0.2);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background 0.3s, color 0.3s;
}

/* ─── 레이아웃 ─── */
.container { max-width: 780px; margin: 0 auto; padding: 0 20px; width: 100%; }

/* ─── 헤더 ─── */
.site-header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  transition: background 0.3s, border-color 0.3s;
}
.site-header .container {
  display: flex; align-items: center; gap: 16px; height: 60px;
}
.logo {
  display: flex; align-items: baseline; gap: 8px;
  cursor: pointer; user-select: none; flex-shrink: 0;
}
.logo-main { font-size: 1.25rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; }
.logo-sub { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.875rem; color: var(--text-muted); flex: 1;
}
.breadcrumb span:first-child { cursor: pointer; color: var(--primary); }
.breadcrumb span:first-child:hover { text-decoration: underline; }
.sep { color: var(--border); }

/* ─── 헤더 액션 버튼들 ─── */
.header-actions {
  display: flex; align-items: center; gap: 8px; margin-left: auto; flex-shrink: 0;
}
.btn-history {
  padding: 6px 12px; background: var(--primary-bg); color: var(--primary);
  border: 1px solid var(--primary-light); border-radius: var(--radius-sm);
  font-size: 0.8rem; font-weight: 600; font-family: inherit; cursor: pointer;
  transition: background 0.2s, opacity 0.2s; white-space: nowrap;
}
.btn-history:hover { opacity: 0.8; }
.lang-toggle {
  display: flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden;
}
.lang-btn {
  padding: 5px 10px; background: transparent; color: var(--text-muted);
  border: none; font-size: 0.78rem; font-weight: 700; font-family: inherit;
  cursor: pointer; transition: background 0.2s, color 0.2s;
}
.lang-btn.active { background: var(--primary); color: #fff; }
.lang-btn:not(.active):hover { background: var(--primary-bg); color: var(--primary); }
.theme-toggle {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border);
  background: transparent; font-size: 1.1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}
.theme-toggle:hover { background: var(--primary-bg); border-color: var(--primary-light); }

/* ─── 토스트 ─── */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: #1e1e2e; color: #fff; padding: 12px 24px; border-radius: 999px;
  font-size: 0.875rem; font-weight: 600; z-index: 9999;
  opacity: 0; transition: opacity 0.3s, transform 0.3s; pointer-events: none;
  white-space: nowrap; box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
[data-theme="dark"] .toast { background: #e2e8f0; color: #1e1e2e; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ─── 공유 오버레이 ─── */
.share-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 500; display: flex; align-items: center; justify-content: center;
  animation: fadeIn 0.2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.share-overlay-box {
  background: var(--card-bg); border-radius: var(--radius); padding: 40px 32px;
  max-width: 380px; width: 90%; text-align: center; position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3); animation: fadeUp 0.3s ease;
}
.share-overlay-close {
  position: absolute; top: 16px; right: 20px; font-size: 1.2rem;
  cursor: pointer; color: var(--text-muted); line-height: 1;
}
.share-overlay-close:hover { color: var(--text); }
.share-overlay-label {
  font-size: 0.78rem; font-weight: 700; color: var(--primary); text-transform: uppercase;
  letter-spacing: 1px; margin-bottom: 16px;
}
.share-result-icon { font-size: 3rem; margin-bottom: 8px; }
.share-result-value { font-size: 2rem; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.share-result-label { font-size: 0.9rem; color: var(--text-muted); }

/* ─── 히스토리 페이지 ─── */
.history-date-group { margin-bottom: 28px; }
.history-date-label {
  font-size: 0.8rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 12px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.history-item {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 16px 20px; margin-bottom: 10px; display: flex; align-items: center; gap: 16px;
  transition: border-color 0.2s;
}
.history-item:hover { border-color: var(--primary-light); }
.history-item-icon { font-size: 1.8rem; flex-shrink: 0; }
.history-item-body { flex: 1; min-width: 0; }
.history-item-value { font-size: 1.1rem; font-weight: 800; color: var(--primary); }
.history-item-label { font-size: 0.82rem; color: var(--text-muted); margin-top: 2px; }
.history-item-time { font-size: 0.75rem; color: var(--text-muted); flex-shrink: 0; }
.history-empty {
  text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 0.9rem;
}
.history-empty .history-empty-icon { font-size: 3rem; margin-bottom: 12px; }
.btn-danger { color: #ef4444; border-color: #ef4444; }
.btn-danger:hover { background: rgba(239,68,68,0.08); }

/* ─── 결과 액션 버튼들 ─── */
.result-actions {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; justify-content: center;
}
.action-btn {
  padding: 10px 18px; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600;
  font-family: inherit; cursor: pointer; border: 1.5px solid var(--border);
  background: var(--card-bg); color: var(--text); transition: all 0.2s;
  display: flex; align-items: center; gap: 6px;
}
.action-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }
.action-btn.kakao {
  background: #FEE500; color: #391B1B; border-color: #FEE500;
}
.action-btn.kakao:hover { background: #f0d800; border-color: #f0d800; color: #391B1B; }

/* ─── 히어로 ─── */
.hero { text-align: center; padding: 56px 0 40px; }
.hero h1 { font-size: 2rem; font-weight: 800; letter-spacing: -1px; margin-bottom: 12px; }
.hero p { font-size: 1rem; color: var(--text-muted); }

/* ─── 툴 그리드 ─── */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  padding-bottom: 60px;
}
.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  position: relative; overflow: hidden;
}
.tool-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0; transition: opacity 0.2s;
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.tool-card:hover::before { opacity: 1; }
.tool-icon { font-size: 2rem; margin-bottom: 14px; }
.tool-card h2 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.tool-card p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.5; margin-bottom: 10px; }
.tool-tag {
  display: inline-block; background: var(--primary-bg); color: var(--primary);
  font-size: 0.75rem; font-weight: 600; padding: 3px 10px; border-radius: 999px;
}
.tool-usage {
  font-size: 0.72rem; color: var(--text-muted); margin-top: 8px; font-weight: 500;
}

/* ─── 툴 섹션 ─── */
.tool-section { padding: 40px 0 80px; flex: 1; }
.tool-header { text-align: center; margin-bottom: 32px; }
.tool-icon-lg { font-size: 3rem; margin-bottom: 12px; }
.tool-header h1 { font-size: 1.75rem; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 8px; }
.tool-header p { font-size: 0.9rem; color: var(--text-muted); }
.tool-header small { font-size: 0.78rem; }

/* ─── 카드 & 폼 ─── */
.card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); margin-bottom: 24px;
  transition: background 0.3s, border-color 0.3s;
}
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 8px; }
.form-group input,
.form-group select {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 1rem; font-family: inherit; color: var(--text);
  background: var(--input-bg); transition: border-color 0.2s, background 0.3s, color 0.3s;
  -webkit-appearance: none;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); }
.radio-group { display: flex; gap: 20px; }
.radio-label { display: flex; align-items: center; gap: 8px; font-size: 0.95rem; cursor: pointer; }
.radio-label input[type="radio"] { accent-color: var(--primary); width: 18px; height: 18px; }

/* ─── 버튼 ─── */
.btn-primary {
  width: 100%; padding: 14px; background: var(--primary); color: #fff;
  border: none; border-radius: var(--radius-sm); font-size: 1rem; font-weight: 700;
  font-family: inherit; cursor: pointer; transition: background 0.2s, transform 0.1s; margin-top: 4px;
}
.btn-primary:hover { background: #4f52d9; }
[data-theme="dark"] .btn-primary:hover { background: #6366f1; }
.btn-primary:active { transform: scale(0.98); }
.btn-secondary {
  padding: 11px 28px; background: transparent; color: var(--primary);
  border: 1.5px solid var(--primary); border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; font-family: inherit; cursor: pointer;
  margin-top: 20px; transition: background 0.2s;
}
.btn-secondary:hover { background: var(--primary-bg); }

/* ─── 결과 카드 ─── */
.result-card {
  background: var(--card-bg); border: 1.5px solid var(--primary-light);
  border-radius: var(--radius); padding: 36px 32px; box-shadow: var(--shadow);
  text-align: center; animation: fadeUp 0.4s ease;
  transition: background 0.3s, border-color 0.3s;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.result-value { font-size: 2.8rem; font-weight: 800; color: var(--primary); letter-spacing: -1px; margin-bottom: 4px; }
.result-label { font-size: 1rem; font-weight: 600; color: var(--text-muted); margin-bottom: 16px; }
.result-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.result-note { font-size: 0.82rem; color: var(--text-muted); margin-top: 16px; }

/* ─── BMI ─── */
.bmi-scale { margin-top: 28px; }
.bmi-bar {
  display: grid; grid-template-columns: 1fr 1fr 1fr 1fr;
  border-radius: 8px; overflow: hidden; font-size: 0.72rem; font-weight: 600; text-align: center;
}
.bmi-segment { padding: 8px 4px; color: #fff; line-height: 1.3; }
.bmi-segment small { opacity: 0.85; font-weight: 400; }
.s1 { background: #60a5fa; } .s2 { background: #4ade80; }
.s3 { background: #facc15; color: #7a5800; } .s4 { background: #f87171; }
.bmi-pointer-wrap { position: relative; height: 16px; margin-top: 4px; }
.bmi-pointer {
  position: absolute; top: 0; transform: translateX(-50%);
  width: 0; height: 0; border-left: 7px solid transparent;
  border-right: 7px solid transparent; border-bottom: 14px solid var(--text);
  transition: left 0.6s cubic-bezier(.34,1.56,.64,1);
}

/* ─── 칼로리 ─── */
.calorie-goals { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin: 20px 0 4px; }
.calorie-goal-item {
  background: var(--bg); border-radius: var(--radius-sm); padding: 14px 8px;
  display: flex; flex-direction: column; gap: 6px;
  transition: background 0.3s;
}
.calorie-goal-item.highlight { background: var(--primary-bg); border: 1.5px solid var(--primary-light); }
.goal-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; }
.goal-value { font-size: 1.1rem; font-weight: 800; color: var(--text); }
.calorie-goal-item.highlight .goal-value { color: var(--primary); }

/* ─── 물 섭취량 ─── */
.water-cups { font-size: 1.6rem; margin: 12px 0 8px; letter-spacing: 2px; }
.water-tips {
  background: var(--bg); border-radius: var(--radius-sm); padding: 18px 20px;
  margin-top: 20px; text-align: left; transition: background 0.3s;
}
.water-tips h3 { font-size: 0.875rem; font-weight: 700; margin-bottom: 10px; }
.water-tips ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.water-tips li { font-size: 0.85rem; color: var(--text-muted); padding-left: 16px; position: relative; line-height: 1.5; }
.water-tips li::before { content: '·'; position: absolute; left: 4px; color: var(--primary); font-weight: 700; }

/* ─── 나이·생존일수 ─── */
.age-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; text-align: center; }
.age-stat-item {
  background: var(--bg); border-radius: var(--radius-sm); padding: 16px 12px;
  transition: background 0.3s;
}
.age-stat-value { font-size: 1.4rem; font-weight: 800; color: var(--primary); }
.age-stat-label { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }

/* ─── 퀴즈 공통 ─── */
.quiz-progress { height: 5px; background: var(--border); border-radius: 999px; margin-bottom: 14px; overflow: hidden; }
.quiz-progress-bar {
  height: 100%; background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 999px; transition: width 0.4s ease; width: 0%;
}
.quiz-step { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; font-weight: 500; }
.quiz-card { padding: 28px; }
.quiz-question { font-size: 1rem; font-weight: 700; margin-bottom: 20px; line-height: 1.5; }
.quiz-options { display: flex; flex-direction: column; gap: 10px; }
.quiz-option {
  width: 100%; padding: 13px 18px; background: var(--input-bg);
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.9rem; font-family: inherit; color: var(--text);
  cursor: pointer; text-align: left; transition: border-color 0.15s, background 0.15s;
}
.quiz-option:hover { border-color: var(--primary); background: var(--primary-bg); }
.quiz-option.selected {
  border-color: var(--primary); background: var(--primary-bg);
  color: var(--primary); font-weight: 700; pointer-events: none;
}
.quiz-option.selected::after { content: ' ✓'; }

/* ─── 번아웃 결과 ─── */
.burnout-icon { font-size: 3.5rem; margin-bottom: 8px; }
.burnout-tips {
  background: var(--bg); border-radius: var(--radius-sm); padding: 18px 20px;
  margin-top: 20px; text-align: left; transition: background 0.3s;
}
.burnout-tips h3 { font-size: 0.875rem; font-weight: 700; margin-bottom: 10px; }
.burnout-tips ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.burnout-tips li { font-size: 0.85rem; color: var(--text-muted); padding-left: 16px; position: relative; line-height: 1.5; }
.burnout-tips li::before { content: '·'; position: absolute; left: 4px; color: var(--primary); font-weight: 700; }

/* ─── 연봉 ─── */
.salary-bar-wrap { margin: 24px 0 16px; }
.salary-bar {
  position: relative; height: 20px;
  background: linear-gradient(90deg, #60a5fa, #4ade80, #facc15, #f87171);
  border-radius: 999px; overflow: visible;
}
.salary-fill { position: absolute; top: 0; left: 0; height: 100%; background: rgba(0,0,0,0.15); border-radius: 999px; }
.salary-marker {
  position: absolute; top: -6px; width: 3px; height: 32px;
  background: var(--text); border-radius: 2px; transform: translateX(-50%);
  transition: left 0.6s cubic-bezier(.34,1.56,.64,1);
}
.salary-bar-labels { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-muted); margin-top: 6px; }

/* ─── 돈 성격 결과 ─── */
.money-icon { font-size: 3.5rem; margin-bottom: 8px; }
.money-tips {
  background: var(--bg); border-radius: var(--radius-sm); padding: 18px 20px;
  margin-top: 20px; text-align: left; transition: background 0.3s;
}
.money-tips h3 { font-size: 0.875rem; font-weight: 700; margin-bottom: 10px; }
.money-tips ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.money-tips li { font-size: 0.85rem; color: var(--text-muted); padding-left: 16px; position: relative; line-height: 1.5; }
.money-tips li::before { content: '·'; position: absolute; left: 4px; color: var(--primary); font-weight: 700; }

/* ─── 푸터 ─── */
.site-footer {
  background: var(--footer-bg); border-top: 1px solid var(--border);
  padding: 28px 0; margin-top: auto; transition: background 0.3s, border-color 0.3s;
}
.site-footer p { text-align: center; font-size: 0.85rem; color: var(--text-muted); }
.site-footer strong { color: var(--text); }
.footer-note { font-size: 0.75rem !important; margin-top: 4px; }

/* ─── 반응형 ─── */
@media (max-width: 600px) {
  .hero h1 { font-size: 1.5rem; }
  .tool-grid { grid-template-columns: 1fr; }
  .card, .result-card { padding: 24px 20px; }
  .calorie-goals { grid-template-columns: 1fr; }
  .age-stats { grid-template-columns: 1fr 1fr; }
  .result-value { font-size: 2.2rem; }
  .bmi-bar { font-size: 0.65rem; }
  .header-actions { gap: 6px; }
  .btn-history span { display: none; }
  .btn-history::before { content: '💾'; }
  .result-actions { gap: 8px; }
  .action-btn { padding: 9px 14px; font-size: 0.8rem; }
}