@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+KR:wght@300;400;500;600;700&display=swap');

/* 2025 Design System Variables */
:root {
    /* Light Theme Colors */
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;
    
    /* Neutral Colors */
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    
    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Glass & Effects */
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
    --backdrop-blur: blur(16px);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    --gradient-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Animation */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    --animation-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}



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

html, body {
    height: 100%;
    font-family: 'Inter', 'Noto Sans KR', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: #e2e8f0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    overflow-x: hidden;
}

/* Container */
.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: relative;
    backdrop-filter: var(--backdrop-blur);
}

/* Header with Glass Effect */
.header {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0 0 24px 24px;
    padding: 24px 32px;
    text-align: center;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
    position: relative;
    z-index: 100;
    margin: 16px 16px 0 16px;
    transition: all 0.3s ease-out;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-card);
    border-radius: 0 0 24px 24px;
    z-index: -1;
}

/* Navigation Links */
.nav-links {
    position: absolute;
    top: 24px;
    right: 32px;
    z-index: 10;
}

.nav-link {
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 12px 20px;
    color: #f1f5f9;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease-out;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.nav-link:hover {
    background: rgba(71, 85, 105, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
    .nav-links {
        top: 16px;
        right: 16px;
    }
    
    .nav-link {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
}

h1 {
    color: #f1f5f9;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    position: relative;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}



/* Filter Container */
#filter-container {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.filter-btn {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(125, 211, 252, 0.2);
    color: #e2e8f0;
    border-radius: 50px;
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease-out;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #475569, #64748b);
    transition: left 0.3s ease-out;
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    left: 0;
}

.filter-btn:hover,
.filter-btn.active {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    border-color: transparent;
}

/* Search Container */
#search-container {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

#search-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(16px);
    border: 2px solid rgba(125, 211, 252, 0.2);
    border-radius: 50px;
    padding: 16px 24px 16px 48px;
    font-size: 1rem;
    color: #e2e8f0;
    transition: all 0.3s ease-out;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

#search-input::placeholder {
    color: #94a3b8;
    font-weight: 400;
}

#search-input:focus {
    outline: none;
    border-color: #64748b;
    box-shadow: 0 0 0 4px rgba(100, 116, 139, 0.2), 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    transform: translateY(-1px);
}

#search-container::before {
    content: "🔍";
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.1rem;
    z-index: 10;
}

/* Content Wrapper */
.content-wrapper {
    display: flex;
    flex: 1;
    gap: 16px;
    margin: 16px;
    overflow: hidden;
}

/* Map */
#map {
    flex: 1;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-normal);
}

#map:hover {
    transform: scale(1.005);
    box-shadow: 0 25px 35px -5px rgb(0 0 0 / 0.15), 0 10px 15px -8px rgb(0 0 0 / 0.1);
}

/* Info Panel with Neumorphism */
#info-panel {
    width: 420px;
    background: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 32px;
    overflow-y: auto;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
    position: relative;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

#info-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.1) 0%, rgba(30, 41, 59, 0.05) 100%);
    border-radius: 24px;
    z-index: -1;
}

#info-panel.visible {
    transform: translateX(0);
    opacity: 1;
}

/* Scrollbar Styling */
#info-panel::-webkit-scrollbar {
    width: 8px;
}

#info-panel::-webkit-scrollbar-track {
    background: transparent;
}

#info-panel::-webkit-scrollbar-thumb {
    background: rgba(100, 116, 139, 0.5);
    border-radius: 50px;
}

#info-panel::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.7);
}

/* Typography */
#info-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 16px;
    line-height: 1.3;
    letter-spacing: -0.01em;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

#info-description {
    font-size: 1rem;
    line-height: 1.7;
    color: #cbd5e1;
    margin-bottom: 24px;
    font-weight: 500;
}

.info-detail {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: #cbd5e1;
    transition: all 0.3s ease-out;
}

.info-detail:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
}

.info-detail strong {
    color: #e2e8f0;
    font-weight: 600;
}

.info-detail a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.15s ease-out;
}

.info-detail a:hover {
    color: #f1f5f9;
    text-decoration: underline;
}

/* Cluster Cards */
.cluster-location-card {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    overflow: hidden;
}

.cluster-location-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #475569, #64748b);
    opacity: 0.2;
    transition: left 0.3s ease-out;
    z-index: -1;
}

.cluster-location-card:hover::before {
    left: 0;
}

.cluster-location-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
    border-color: #64748b;
}

.cluster-location-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #f1f5f9;
    margin-bottom: 8px;
    line-height: 1.4;
}

.cluster-location-card p {
    font-size: 0.9rem;
    color: #94a3b8;
    line-height: 1.6;
}

/* Welcome Message */
.welcome-message {
    text-align: center;
    padding: 40px 20px;
    cursor: pointer;
    transition: all 0.3s ease-out;
    border-radius: 16px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(16px);
    overflow: hidden;
}

.welcome-message:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

.welcome-message h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #f1f5f9;
    margin-bottom: 16px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    word-break: keep-all;
    line-height: 1.4;
}

.welcome-message p {
    color: #cbd5e1;
    font-size: 1rem;
    line-height: 1.7;
    font-weight: 500;
    word-break: keep-all;
}

/* Hotel Links */
.nearby-hotels {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.hotel-list {
    display: grid;
    gap: 12px;
    margin-top: 16px;
}

.hotel-link {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 16px 20px;
    color: #e2e8f0;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease-out;
    position: relative;
    overflow: hidden;
}

.hotel-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #585858, #a4a4a4);
    transition: left 0.3s ease-out;
    z-index: -1;
}

.hotel-link:hover::before {
    left: 0;
}

.hotel-link:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    text-decoration: none;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Loading Animation */
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 1.5s infinite;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-wrapper {
        flex-direction: column;
    }
    
    #info-panel {
        width: 100%;
        height: 45vh;
        transform: translateY(100%);
        border-radius: 24px 24px 0 0;
        border-bottom: none;
    }
    
    #info-panel.visible {
        transform: translateY(0);
    }
    
    #map {
        border-radius: 24px 24px 0 0;
    }
    
    .header {
        margin: 8px;
        border-radius: 0 0 20px 20px;
        padding: 20px 24px;
    }
    
    h1 {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }
    
    .theme-toggle {
        top: 20px;
        right: 24px;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 16px 20px;
    }
    
    h1 {
        font-size: 1.3rem;
        margin-bottom: 16px;
    }
    
    #filter-container {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    
    #search-input {
        padding: 14px 20px 14px 42px;
        font-size: 0.9rem;
    }
    
    .content-wrapper {
        margin: 8px;
        gap: 8px;
    }
    
    #info-panel {
        padding: 24px;
        border-radius: 20px 20px 0 0;
    }
    
    #info-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .header {
        margin: 4px;
        padding: 12px 16px;
        border-radius: 0 0 16px 16px;
    }
    
    h1 {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }
    
    .theme-toggle {
        top: 12px;
        right: 16px;
        padding: 6px 12px;
        font-size: 1rem;
    }
    
    .filter-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .content-wrapper {
        margin: 4px;
    }
    
    #info-panel {
        padding: 20px;
    }
}

/* Location List Cards */
.location-list-card {
    background: rgba(30, 41, 59, 0.8) !important;
    border: 1px solid rgba(96, 165, 250, 0.3) !important;
    border-radius: 12px !important;
    padding: 16px !important;
    margin-bottom: 12px !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2) !important;
}

.location-list-card h3 {
    color: #f1f5f9 !important;
    font-size: 1.1rem !important;
    margin-bottom: 8px !important;
    font-weight: 600 !important;
}

.location-list-card p {
    color: #cbd5e1 !important;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
    margin-bottom: 8px !important;
}

.card-footer {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
}

.category-tag {
    background: #475569 !important;
    color: white !important;
    padding: 4px 8px !important;
    border-radius: 8px !important;
    font-size: 0.75rem !important;
    font-weight: 500 !important;
}

.hours-text {
    color: #94a3b8 !important;
    font-size: 0.75rem !important;
}