@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root {
    --primary: #4CAF50;
    --primary-dark: #2E7D32;
    --primary-light: #E8F5E9;
    --background: #F8FAFC;
    --card-bg: #FFFFFF;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --radius: 20px;
    --shadow: 0 10px 40px -10px rgba(0,0,0,0.08);
    --hover-shadow: 0 20px 40px -10px rgba(76, 175, 80, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

li { list-style-type: none; }
a { text-decoration: none; color: inherit; }

body {
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.6;
}

header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 40px 20px;
    text-align: center;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(76,175,80,0.2);
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    pointer-events: none;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

header nav ul {
    margin-top: 15px;
}

header nav ul li p {
    font-size: 0.95rem;
    opacity: 0.85;
    font-weight: 400;
}

main {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Sections */
.hero-section {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

@media (max-width: 800px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 35px;
    box-shadow: var(--shadow);
    flex: 1;
    min-width: 320px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
    border: 1px solid rgba(255,255,255,0.8);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--hover-shadow);
}

.card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

.card h2::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 24px;
    background: var(--primary);
    border-radius: 4px;
    margin-right: 12px;
    vertical-align: text-bottom;
}

.card p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
}

.card strong {
    color: var(--text-main);
    font-weight: 600;
}

/* Quick Links */
.links-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 10px;
}

.link-btn {
    display: block;
    padding: 20px 24px;
    background: var(--background);
    color: var(--text-main);
    border-radius: 14px;
    font-weight: 600;
    font-size: 1.1rem;
    text-align: center;
    transition: all 0.25s ease;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.link-btn::after {
    content: '→';
    position: absolute;
    right: 24px;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.25s ease;
}

.link-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(76, 175, 80, 0.25);
    padding-right: 40px;
}

.link-btn:hover::after {
    opacity: 1;
    transform: translateX(0);
}

/* Notices Layout */
.notice-board {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 1;
}

.notice-areas {
    display: flex;
    gap: 20px;
    max-height: 350px;
    overflow-y: auto;
    padding-right: 8px;
}

.notice-areas::-webkit-scrollbar {
    width: 6px;
}
.notice-areas::-webkit-scrollbar-thumb {
    background-color: #cbd5e1;
    border-radius: 10px;
}

.notice-area {
    flex: 1;
}

.notice-area h3 {
    font-size: 1.05rem;
    margin-bottom: 15px;
    color: var(--text-muted);
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
}

/* Notice Items */
.notice-item {
    background: var(--background);
    border-radius: 12px;
    padding: 14px 16px;
    margin-bottom: 12px;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.notice-item:hover {
    background: white;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.notice-item.important {
    border-left: 4px solid #ef4444;
    background: #fef2f2;
}

.notice-item:not(.important) {
    border-left: 4px solid var(--primary);
}

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

.notice-title {
    font-weight: 600;
    color: var(--text-main);
    font-size: 1rem;
}

.notice-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.notice-content {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.view-all-btn {
    display: block;
    margin-top: auto;
    padding: 14px 20px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-main);
    font-weight: 600;
    text-align: center;
    transition: all 0.2s;
    width: 100%;
}

.view-all-btn:hover {
    background: var(--background);
    color: var(--primary-dark);
    border-color: var(--primary);
}

/* Notice Shortcut Buttons */
.notice-shortcuts {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.notice-shortcut-btn {
    flex: 1;
    display: block;
    padding: 12px 14px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    text-align: center;
    transition: all 0.25s ease;
    border: none;
}

.link-btn-purple {
    background: linear-gradient(135deg, #4f46e5, #ec4899);
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.link-btn-purple:hover {
    background: linear-gradient(135deg, #4338ca, #be185d);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.35);
}

.link-btn-green {
    background: linear-gradient(135deg, #10b981, #06b6d4);
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.link-btn-green:hover {
    background: linear-gradient(135deg, #059669, #0891b2);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.35);
}

@media (max-width: 500px) {
    .notice-shortcuts {
        flex-direction: column;
    }
}

/* Popups */
.popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    display: none;
    z-index: 999;
}

.popup-overlay.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.popup-3 {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -45%);
    background: var(--card-bg);
    width: 90%;
    max-width: 600px;
    padding: 35px;
    display: none;
    z-index: 1000;
    border-radius: var(--radius);
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
    opacity: 0;
    max-height: 90%;
    overflow-y: auto;
    word-break: keep-all;
}

.popup-3.active {
    display: block;
    opacity: 1;
    transform: translate(-50%, -50%);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.popup-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 10px;
    text-align: center;
}

.popup-date {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 25px;
    text-align: center;
    font-weight: 500;
}

.popup-content {
    color: var(--text-main);
    line-height: 1.7;
    margin-bottom: 30px;
    font-size: 1.05rem;
}

.popup-inner button {
    background: var(--text-main);
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
}

.popup-inner button:hover {
    background: var(--primary);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (max-width: 600px) {
    .notice-areas {
        flex-direction: column;
        max-height: none;
        overflow-y: visible;
    }
}

/* ── 바로가기 팝업 공통 스타일 ── */
.sp-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}
.sp-overlay.active {
    display: block;
}

.sp-popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -48%);
    z-index: 10001;
    width: 90%;
    max-width: 420px;
    animation: slideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.sp-popup.active {
    display: block;
    transform: translate(-50%, -50%);
}

.sp-popup-inner {
    background: rgba(255, 255, 255, 0.97);
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    text-align: center;
}

.sp-popup-inner h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
}

.sp-popup-inner ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0;
}

.sp-popup-inner li a {
    display: block;
    padding: 14px 20px;
    font-size: 1rem;
    font-weight: 500;
    color: #475569;
    background: #f1f5f9;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.sp-popup-inner li a:hover {
    background: var(--primary);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.sp-popup-inner li a.sp-close {
    background: #e2e8f0;
    color: #64748b;
    margin-top: 6px;
}

.sp-popup-inner li a.sp-close:hover {
    background: #ef4444;
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

@media (prefers-color-scheme: dark) {
    .sp-popup-inner {
        background: rgba(30, 41, 59, 0.97);
        color: #f8fafc;
    }
    .sp-popup-inner h2 { color: #f8fafc; }
    .sp-popup-inner li a {
        color: #cbd5e1;
        background: #334155;
    }
    .sp-popup-inner li a.sp-close {
        background: #0f172a;
        color: #94a3b8;
    }
}