/* ===========================
   2026 건강보험료 계산기 스타일
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Pretendard:wght@300;400;500;600;700;800&display=swap');

/* --- 토큰 & 리셋 --- */
:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --teal-400: #2dd4bf;
  --teal-500: #14b8a6;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --rose-500: #f43f5e;
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --green-400: #4ade80;
  --green-500: #22c55e;

  --bg-base: #04060f;
  --bg-surface: #0d1117;
  --bg-card: rgba(13, 20, 40, 0.85);
  --bg-card-hover: rgba(18, 28, 55, 0.95);
  --border-color: rgba(96, 165, 250, 0.15);
  --border-active: rgba(96, 165, 250, 0.45);
  --text-primary: #f0f4ff;
  --text-secondary: #94a3b8;
  --text-muted: #475569;
  --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* --- 배경 파티클 --- */
.bg-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.35;
  animation: float-particle 18s infinite ease-in-out;
}

.particle:nth-child(1) { width: 400px; height: 400px; background: radial-gradient(circle, rgba(59,130,246,0.18) 0%, transparent 70%); top: -100px; left: -100px; animation-duration: 20s; }
.particle:nth-child(2) { width: 300px; height: 300px; background: radial-gradient(circle, rgba(168,85,247,0.14) 0%, transparent 70%); top: 30%; right: -80px; animation-duration: 25s; animation-delay: -8s; }
.particle:nth-child(3) { width: 250px; height: 250px; background: radial-gradient(circle, rgba(20,184,166,0.16) 0%, transparent 70%); bottom: 10%; left: 20%; animation-duration: 22s; animation-delay: -4s; }
.particle:nth-child(4) { width: 180px; height: 180px; background: radial-gradient(circle, rgba(244,63,94,0.10) 0%, transparent 70%); top: 60%; left: 50%; animation-duration: 28s; animation-delay: -12s; }
.particle:nth-child(5) { width: 350px; height: 350px; background: radial-gradient(circle, rgba(59,130,246,0.10) 0%, transparent 70%); bottom: -80px; right: 10%; animation-duration: 24s; animation-delay: -6s; }
.particle:nth-child(6) { width: 200px; height: 200px; background: radial-gradient(circle, rgba(251,191,36,0.08) 0%, transparent 70%); top: 20%; left: 40%; animation-duration: 30s; animation-delay: -15s; }

@keyframes float-particle {
  0%, 100% { transform: translateY(0) translateX(0) scale(1); }
  33% { transform: translateY(-30px) translateX(20px) scale(1.05); }
  66% { transform: translateY(20px) translateX(-15px) scale(0.95); }
}

/* --- 레이아웃 --- */
.app-wrapper {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

/* --- 헤더 --- */
.app-header {
  text-align: center;
  padding: 60px 20px 40px;
}

.header-badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(59,130,246,0.2) 0%, rgba(168,85,247,0.2) 100%);
  border: 1px solid rgba(96,165,250,0.3);
  color: var(--blue-400);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
}

.header-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #2dd4bf 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% auto;
  animation: gradient-shift 4s linear infinite;
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.header-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 400;
}

.maker-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  padding: 8px 20px;
  background: linear-gradient(135deg, rgba(45,212,191,0.12) 0%, rgba(59,130,246,0.12) 100%);
  border: 1px solid rgba(45,212,191,0.3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--teal-400);
  letter-spacing: 0.3px;
  backdrop-filter: blur(10px);
}

/* --- 메인 레이아웃 --- */
.main-content {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  align-items: start;
}

@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
  }
}

/* --- 카드 --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glow);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--border-active);
  box-shadow: 0 0 60px rgba(59, 130, 246, 0.18);
}

/* --- 스텝 카드 --- */
.step-card { margin-bottom: 20px; }

.step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.step-badge {
  background: linear-gradient(135deg, var(--blue-600), var(--purple-600));
  color: white;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 4px 10px;
  border-radius: 100px;
}

.step-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

/* --- 폼 --- */
.form-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.form-group { display: flex; flex-direction: column; gap: 12px; }

.form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* --- 가구원 수 버튼 --- */
.select-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.size-btn {
  flex: 1;
  min-width: 56px;
  padding: 12px 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
}

.size-btn:hover {
  background: rgba(59,130,246,0.12);
  border-color: var(--border-active);
  color: var(--blue-400);
  transform: translateY(-2px);
}

.size-btn.active {
  background: linear-gradient(135deg, rgba(59,130,246,0.25), rgba(168,85,247,0.2));
  border-color: var(--blue-500);
  color: var(--text-primary);
  box-shadow: 0 0 20px rgba(59,130,246,0.2), inset 0 1px 0 rgba(255,255,255,0.1);
}

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

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: linear-gradient(to right, var(--blue-600) 0%, var(--blue-600) var(--pct, 37.5%), rgba(255,255,255,0.1) var(--pct, 37.5%));
  border-radius: 100px;
  outline: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-400), var(--purple-500));
  border: 3px solid var(--bg-base);
  box-shadow: 0 0 14px rgba(59,130,246,0.5);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 24px rgba(59,130,246,0.7);
}

/* 퍼플 슬라이더 변형 (맞벌이용) */
.slider-purple {
  background: linear-gradient(to right, var(--purple-600) 0%, var(--purple-600) var(--pct, 20%), rgba(255,255,255,0.1) var(--pct, 20%));
}

.slider-purple::-webkit-slider-thumb {
  background: linear-gradient(135deg, #c084fc, var(--teal-400));
  box-shadow: 0 0 14px rgba(168,85,247,0.5);
}

.slider-purple::-webkit-slider-thumb:hover {
  box-shadow: 0 0 24px rgba(168,85,247,0.7);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

.slider-value-display {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

#ratio-display {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue-400), var(--teal-400));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.slider-income-amount {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* --- 가입자 유형 --- */
.type-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.type-group-4 {
  grid-template-columns: repeat(4, 1fr);
}

.type-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.type-card input[type="radio"] { display: none; }

.type-card:hover {
  background: rgba(59,130,246,0.08);
  border-color: rgba(96,165,250,0.3);
  transform: translateY(-2px);
}

.type-card.active {
  background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(168,85,247,0.15));
  border-color: var(--blue-500);
  box-shadow: 0 0 24px rgba(59,130,246,0.18), inset 0 1px 0 rgba(255,255,255,0.08);
}

.type-icon { font-size: 24px; }
.type-name { font-size: 13px; font-weight: 700; color: var(--text-primary); }
.type-desc { font-size: 11px; color: var(--text-secondary); }

/* --- 맞벌이 패널 --- */
.dual-panel {
  animation: fade-in-up 0.3s ease both;
}

.dual-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(168,85,247,0.4), transparent);
  margin: 20px 0;
}

.dual-income-visual {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dual-bar {
  display: flex;
  height: 36px;
  border-radius: var(--radius-md);
  overflow: hidden;
  gap: 3px;
  padding: 3px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-color);
}

.dual-bar-a {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
  border-radius: 8px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dual-bar-b {
  background: linear-gradient(135deg, var(--purple-600), #c084fc);
  border-radius: 8px;
  flex: 1;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dual-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dual-label-a, .dual-label-b {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.dual-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-a { background: var(--blue-400); box-shadow: 0 0 8px rgba(96,165,250,0.6); }
.dot-b { background: #c084fc; box-shadow: 0 0 8px rgba(192,132,252,0.6); }

.dual-amount {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 12px;
}

/* 맞벌이 결과 카드 컬러 */
.result-card-amount.dual-a { color: var(--blue-400); }
.result-card-amount.dual-b { color: #c084fc; }
.result-card-amount.dual-total {
  background: linear-gradient(135deg, var(--blue-400), #c084fc);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 맞벌이 상세 구분선 */
.detail-row.section-a { background: rgba(59,130,246,0.06); border-radius: 6px; }
.detail-row.section-b { background: rgba(168,85,247,0.06); border-radius: 6px; }

/* --- 계산 버튼 --- */
.calc-btn {
  width: 100%;
  padding: 18px 32px;
  background: linear-gradient(135deg, var(--blue-600) 0%, var(--purple-600) 50%, var(--teal-500) 100%);
  background-size: 200% auto;
  border: none;
  border-radius: var(--radius-lg);
  color: white;
  font-size: 17px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background-position 0.4s ease, transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 30px rgba(59,130,246,0.3), 0 1px 0 rgba(255,255,255,0.1) inset;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
}

.calc-btn:hover {
  background-position: right center;
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(59,130,246,0.45);
}

.calc-btn:active { transform: translateY(0); }

/* --- 결과 섹션 --- */
.result-section { display: flex; flex-direction: column; gap: 20px; animation: fade-in-up 0.5s ease both; }

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 결과 요약 */
.result-summary {
  background: linear-gradient(135deg, rgba(59,130,246,0.12) 0%, rgba(168,85,247,0.10) 100%);
  border: 1px solid rgba(96,165,250,0.25);
  border-radius: var(--radius-xl);
  padding: 24px 28px;
  backdrop-filter: blur(20px);
}

.summary-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.summary-title { font-size: 18px; font-weight: 700; }

.summary-badge {
  background: linear-gradient(135deg, var(--blue-500), var(--purple-500));
  color: white;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
}

.summary-info { font-size: 14px; color: var(--text-secondary); }

/* 결과 카드 */
.result-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(20px);
  text-align: center;
  transition: all var(--transition);
}

.result-card:hover {
  border-color: var(--border-active);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(59,130,246,0.12);
}

.result-card-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.result-card-amount {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}

.result-card-amount.blue { color: var(--blue-400); }
.result-card-amount.purple { color: #c084fc; }
.result-card-amount.teal { color: var(--teal-400); }
.result-card-amount.amber { color: var(--amber-400); }
.result-card-amount.green { color: var(--green-400); }
.result-card-amount.rose { color: #fb7185; }

.result-card-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* 상세 내역 */
.detail-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  backdrop-filter: blur(20px);
}

.detail-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 14px;
}

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

.detail-key { color: var(--text-secondary); }
.detail-val { font-weight: 600; color: var(--text-primary); }
.detail-val.accent { color: var(--blue-400); }
.detail-val.total {
  font-size: 16px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue-400), var(--teal-400));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 테이블 섹션 */
.table-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(20px);
}

.table-title {
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.insurance-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.insurance-table th {
  background: rgba(59,130,246,0.12);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.3px;
  padding: 12px 14px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.insurance-table td {
  padding: 11px 14px;
  text-align: right;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  color: var(--text-secondary);
  white-space: nowrap;
}

.insurance-table td:first-child { text-align: center; font-weight: 600; }

.insurance-table tr:hover td {
  background: rgba(59,130,246,0.06);
  color: var(--text-primary);
}

.insurance-table tr.current-row td {
  background: linear-gradient(90deg, rgba(59,130,246,0.15), rgba(168,85,247,0.12));
  color: var(--text-primary);
  font-weight: 700;
}

.insurance-table tr.current-row td:first-child {
  color: var(--blue-400);
  position: relative;
}

.insurance-table tr.current-row td:first-child::before {
  content: '▶ ';
  color: var(--blue-400);
}

/* 면책 문구 */
.disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 20px;
  background: rgba(251,191,36,0.06);
  border: 1px solid rgba(251,191,36,0.2);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 13px;
}

.disclaimer svg { color: var(--amber-400); flex-shrink: 0; margin-top: 2px; }
.disclaimer a { color: var(--blue-400); text-decoration: none; }
.disclaimer a:hover { text-decoration: underline; }

/* --- 사이드바 --- */
.info-aside { display: flex; flex-direction: column; gap: 16px; }

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  backdrop-filter: blur(20px);
}

.info-card-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.info-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 0;
  font-size: 13px;
}

.info-list li.divider {
  border-top: 1px solid var(--border-color);
  padding: 0;
  margin: 4px 0;
}

.info-label { color: var(--text-secondary); }
.info-value { font-weight: 600; color: var(--text-primary); }
.info-value.highlight { color: var(--blue-400); }

.median-list li { border-bottom: 1px solid rgba(255,255,255,0.04); }
.median-list li:last-child { border-bottom: none; }

/* 가입자 유형 안내 */
.type-info { display: flex; flex-direction: column; gap: 14px; }

.type-info-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.type-info-icon { font-size: 20px; flex-shrink: 0; }

.type-info-item strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.type-info-item p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- 푸터 --- */
.app-footer {
  text-align: center;
  padding: 28px 20px 24px;
  font-size: 12px;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
}

.footer-maker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(45,212,191,0.10) 0%, rgba(59,130,246,0.10) 100%);
  border: 1px solid rgba(45,212,191,0.25);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--teal-400);
  letter-spacing: 0.3px;
}

/* --- 반응형 --- */
@media (max-width: 768px) {
  .app-header { padding: 40px 10px 30px; }
  .card { padding: 20px; }
  .type-group { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .type-group-4 { grid-template-columns: repeat(2, 1fr); }
  .type-card { padding: 12px 8px; }
  .type-name { font-size: 12px; }
  .result-cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .select-group { gap: 6px; }
  .size-btn { font-size: 13px; padding: 10px 6px; }
  .result-cards { grid-template-columns: 1fr 1fr; }
  .type-group { grid-template-columns: 1fr; }
  .type-group-4 { grid-template-columns: repeat(2, 1fr); }
}