/* ===================================
   청해이씨대종회 - Main Stylesheet
   =================================== */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - 청해(靑海) 컨셉 */
    --primary: #1a4d7a;
    --primary-light: #2d5f8d;
    --primary-dark: #0d3557;
    --secondary: #d4af37;
    --accent: #8b4513;
    
    --gray-50: #fafbfc;
    --gray-100: #f5f7fa;
    --gray-200: #e4e7eb;
    --gray-300: #d1d6db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --white: #ffffff;
    --black: #000000;
    
    /* Typography */
    --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Noto Serif KR', Georgia, serif;
    
    /* Spacing */
    --container-width: 1200px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

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

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

/* ===================================
   Header Styles
   =================================== */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.header-top {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 1rem 0;
    color: var(--white);
}

.header-top-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.symbol-mark svg {
    display: block;
}

.title-group {
    display: flex;
    flex-direction: column;
}

.site-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin: 0;
}

.site-title-zh {
    font-family: var(--font-serif);
    font-size: 0.875rem;
    opacity: 0.9;
    letter-spacing: 2px;
}

.header-utils {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.util-link {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: var(--transition);
}

.util-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.search-btn {
    padding: 0.5rem;
    color: var(--white);
    border-radius: 6px;
    transition: var(--transition);
}

.search-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Main Navigation */
.main-nav {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.nav-menu {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 1.25rem 1.5rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
    font-size: 1rem;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--gray-50);
}

.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.nav-item:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--gray-700);
    font-size: 0.9rem;
    transition: var(--transition);
}

.sub-menu a:hover {
    background: var(--gray-50);
    color: var(--primary);
    padding-left: 2rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition);
}

/* ===================================
   Main Slider
   =================================== */

.main-slider {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.mainSwiper {
    width: 100%;
    height: 100%;
}

.slide-content {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.slide-content .container {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
}

.slide-text {
    flex: 1;
    color: var(--white);
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
}

.slide-title {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.slide-desc {
    font-size: 1.125rem;
    line-height: 1.8;
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.slide-image {
    flex: 0 0 auto;
}

.image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

/* Swiper Custom Styles */
.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: var(--white);
    opacity: 0.5;
}

.swiper-pagination-bullet-active {
    opacity: 1;
    width: 32px;
    border-radius: 6px;
}

.swiper-button-next,
.swiper-button-prev {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    backdrop-filter: blur(10px);
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 20px;
}

/* ===================================
   Quick Menu
   =================================== */

.quick-menu {
    padding: 3rem 0;
    background: var(--gray-50);
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.quick-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.quick-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.quick-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    color: var(--white);
}

.quick-item span {
    font-weight: 500;
    font-size: 1.125rem;
    color: var(--gray-800);
}

/* ===================================
   Content Grid
   =================================== */

.content-grid {
    padding: 4rem 0;
}

.grid-3col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.content-box {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
}

.content-box:hover {
    box-shadow: var(--shadow-xl);
}

.box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--gray-50);
    border-bottom: 2px solid var(--primary);
}

.box-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.box-title svg {
    color: var(--primary);
}

.more-btn {
    font-size: 0.875rem;
    color: var(--gray-500);
    transition: var(--transition);
}

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

/* Notice List */
.notice-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.notice-list li {
    border-bottom: 1px solid var(--gray-100);
}

.notice-list li:last-child {
    border-bottom: none;
}

.notice-list a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    transition: var(--transition);
}

.notice-list a:hover {
    background: var(--gray-50);
}

.badge-new,
.badge-hot {
    flex-shrink: 0;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.badge-new {
    background: var(--primary);
    color: var(--white);
}

.badge-hot {
    background: #dc2626;
    color: var(--white);
}

.notice-title {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--gray-700);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.notice-date {
    flex-shrink: 0;
    font-size: 0.8125rem;
    color: var(--gray-400);
}

/* Event List */
.event-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.event-list li {
    display: flex;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

.event-list li:last-child {
    border-bottom: none;
}

.event-list li:hover {
    background: var(--gray-50);
}

.event-date {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border-radius: 8px;
}

.event-date .month {
    font-size: 0.875rem;
    font-weight: 500;
}

.event-date .day {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.event-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.event-title {
    font-weight: 500;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.event-place {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Jokbo Search */
.jokbo-search {
    padding: 1.5rem;
    display: flex;
    gap: 0.5rem;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
}

.search-submit {
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: var(--white);
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
}

.search-submit:hover {
    background: var(--primary-dark);
}

.jokbo-menu {
    list-style: none;
    padding: 0 1.5rem 1.5rem;
}

.jokbo-menu li {
    padding: 0.5rem 0;
}

.jokbo-menu a {
    color: var(--gray-600);
    transition: var(--transition);
}

.jokbo-menu a:hover {
    color: var(--primary);
    padding-left: 0.5rem;
}

/* ===================================
   Gallery Section
   =================================== */

.gallery-section {
    padding: 4rem 0;
    background: var(--gray-50);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.section-more {
    color: var(--gray-500);
    font-weight: 500;
    transition: var(--transition);
}

.section-more:hover {
    color: var(--primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.gallery-item.large {
    grid-column: span 2;
}

.gallery-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.gallery-image .image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-info {
    padding: 1.5rem;
}

.gallery-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.gallery-info p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 0.75rem;
}

.gallery-date {
    font-size: 0.875rem;
    color: var(--gray-400);
}

/* ===================================
   Links Section
   =================================== */

.links-section {
    padding: 3rem 0;
    background: var(--white);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.link-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: 12px;
    border: 2px solid transparent;
    transition: var(--transition);
}

.link-item:hover {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.link-item svg {
    color: var(--primary);
}

.link-item span {
    font-weight: 500;
    color: var(--gray-700);
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
}

.footer-logo h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.footer-logo-zh {
    font-family: var(--font-serif);
    font-size: 0.875rem;
    opacity: 0.7;
    letter-spacing: 2px;
}

.footer-contact p {
    font-size: 0.9375rem;
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.copyright {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-700);
    font-size: 0.875rem;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-col h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-col a {
    display: block;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--white);
    padding-left: 0.5rem;
}

.footer-social h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-800);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

/* ===================================
   Scroll to Top Button
   =================================== */

.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
    .gallery-item.large {
        grid-column: span 1;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .slide-title {
        font-size: 2rem;
    }
    
    .slide-desc {
        font-size: 1rem;
    }
    
    .slide-image {
        display: none;
    }
    
    .main-slider {
        height: 450px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-utils {
        gap: 1rem;
    }
    
    .util-link {
        font-size: 0.8125rem;
        padding: 0.375rem 0.75rem;
    }
    
    .grid-3col {
        grid-template-columns: 1fr;
    }
    
    .quick-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .site-title {
        font-size: 1.25rem;
    }
    
    .site-title-zh {
        font-size: 0.75rem;
    }
    
    .slide-title {
        font-size: 1.5rem;
    }
    
    .badge {
        font-size: 0.75rem;
        padding: 0.375rem 1rem;
    }
    
    .quick-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .links-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Animations
   =================================== */

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* AOS Animation Override */
[data-aos] {
    pointer-events: auto;
}

/* ===================================
   Utility Classes
   =================================== */

.text-center {
    text-align: center;
}

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

.bg-primary {
    background-color: var(--primary);
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }

.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.pb-5 { padding-bottom: var(--spacing-xl); }