/* 공통 스타일 - 리셋, 타이포, 레이아웃, 버튼 */
/* 2026-02-11 생성 */

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

:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f3460;
  --text-primary: #e8e8e8;
  --text-secondary: #a0a0b0;
  --accent-gold: #d4a520;
  --accent-red: #e74c3c;
  --accent-blue: #3498db;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(212, 165, 32, 0.4);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.4s ease;
  --transition-slow: 0.8s ease;
}

html {
  font-size: 16px;
}

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

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.3;
}

h1 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
h2 { font-size: clamp(1.2rem, 3vw, 1.6rem); }
h3 { font-size: clamp(1rem, 2.5vw, 1.3rem); }

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.8;
}

/* 컨테이너 */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px clamp(12px, 3vw, 24px);
}

/* 페이지 헤더 */
.page-header {
  text-align: center;
  padding: 30px 0 20px;
}

.page-header h1 {
  margin-bottom: 8px;
}

.page-header .subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* 버튼 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-gold), #b8860b);
  color: #1a1a2e;
  box-shadow: 0 4px 15px rgba(212, 165, 32, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(212, 165, 32, 0.5);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0) scale(0.96);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: #1a4a80;
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-sm {
  padding: 6px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  font-size: 1.2rem;
}

/* 네비게이션 바 */
.nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  margin-bottom: 16px;
}

.nav-bar .nav-links {
  display: flex;
  gap: 12px;
}

/* 유틸리티 */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.hidden { display: none !important; }

/* 페이드 인 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

/* 스크롤바 */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border-radius: 3px;
}