/* ===================================
   2026 병오년 만세력 - 완전한 스타일
   Advanced Design with Dark Mode
   =================================== */

:root {
    /* 라이트 모드 색상 */
    --primary-red: #c41e3a;
    --primary-gold: #d4af37;
    --dark-bg: #1a1a1a;
    --light-bg: #f5f5f5;
    --white: #ffffff;
    --text-dark: #333333;
    --text-gray: #666666;
    --border-color: #e0e0e0;
    
    /* 배경 */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-card: #ffffff;
    
    /* 그라데이션 */
    --gradient-hero: linear-gradient(135deg, #1a1a1a 0%, #8b0000 50%, #c41e3a 100%);
    --gradient-gold: linear-gradient(135deg, #d4af37, #f4e5b5);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    
    /* 간격 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* 애니메이션 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 다크 모드 */
[data-theme="dark"] {
    --light-bg: #0f0f0f;
    --white: #1a1a1a;
    --text-dark: #e0e0e0;
    --text-gray: #a0a0a0;
    --border-color: #333333;
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #1f1f1f;
    --gradient-hero: linear-gradient(135deg, #0f0f0f 0%, #8b0000 50%, #c41e3a 100%);
    --glass-bg: rgba(31, 31, 31, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* ===== 리셋 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* ===== 컨테이너 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ========================================
   🧭 네비게이션
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Noto Serif KR', serif;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.8rem;
    color: var(--primary-gold);
    -webkit-text-fill-color: var(--primary-gold);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 1rem;
    transition: var(--transition-normal);
}

.nav-menu a:hover {
    color: var(--primary-red);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-gold);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 80%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-login {
    padding: 0.6rem 1.5rem;
    background: var(--gradient-gold);
    color: var(--dark-bg);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition-normal);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

/* 모바일 메뉴 토글 */
.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--text-dark);
}

/* ========================================
   🌙 다크 모드 토글
   ======================================== */
.theme-toggle {
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: 50px;
    width: 60px;
    height: 32px;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-normal);
    padding: 0;
}

.theme-toggle:hover {
    transform: scale(1.05);
    border-color: var(--primary-gold);
}

.theme-toggle-slider {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-red));
    transition: transform var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

[data-theme="dark"] .theme-toggle-slider {
    transform: translateX(28px);
}

.theme-toggle-slider i {
    color: white;
}

/* ========================================
   🎨 카드 & 섹션
   ======================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 2rem;
    transition: all var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    font-family: 'Noto Serif KR', serif;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-gray);
}

/* 서비스 카드 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* ========================================
   🔔 실시간 알림 시스템
   ======================================== */
.live-notifications {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
    max-width: 350px;
    pointer-events: none;
}

.live-notification {
    background: white;
    border-radius: 15px;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 1rem;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: auto;
    border-left: 4px solid var(--primary-gold);
}

[data-theme="dark"] .live-notification {
    background: var(--bg-card);
    border-left-color: var(--primary-red);
}

.notification-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
    animation: bounce 1s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.notification-content {
    flex: 1;
}

.notification-text {
    font-size: 0.9rem;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.notification-time {
    font-size: 0.75rem;
    color: var(--text-gray);
}

/* 모바일 알림 */
@media (max-width: 768px) {
    .live-notifications {
        left: 10px;
        right: 10px;
        max-width: none;
        bottom: 10px;
    }
    
    .live-notification {
        padding: 0.8rem 1rem;
    }
    
    .notification-icon {
        font-size: 1.5rem;
    }
}

/* ========================================
   ✨ 애니메이션
   ======================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    animation: staggerFadeInUp 0.6s ease forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

@keyframes staggerFadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   🔘 버튼
   ======================================== */
.btn-primary {
    padding: 1rem 2rem;
    background: var(--gradient-gold);
    color: var(--dark-bg);
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.5);
}

/* ========================================
   📱 반응형
   ======================================== */
@media (max-width: 768px) {
    .navbar .container {
        padding: 0.8rem 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        right: 0;
        flex-direction: column;
        background: var(--bg-primary);
        padding: 2rem;
        gap: 1rem;
        transition: left var(--transition-normal);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .theme-toggle {
        width: 50px;
        height: 28px;
    }
    
    .theme-toggle-slider {
        width: 20px;
        height: 20px;
    }
    
    [data-theme="dark"] .theme-toggle-slider {
        transform: translateX(22px);
    }
    
    .glass-card {
        padding: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 1rem;
    }
}

/* ========================================
   🎯 추가 효과
   ======================================== */
.gradient-animated {
    background: linear-gradient(270deg, #c41e3a, #d4af37, #c41e3a);
    background-size: 400% 400%;
    animation: gradientShift 10s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.pulse-scale {
    animation: pulseScale 2s infinite;
}

@keyframes pulseScale {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* 로딩 스켈레톤 */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 8px;
}

[data-theme="dark"] .skeleton {
    background: linear-gradient(90deg, #2a2a2a 25%, #3a3a3a 50%, #2a2a2a 75%);
    background-size: 200% 100%;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}