/* ==========================================
   연신내노래방닷컴 - Main Stylesheet
   Mobile-First Responsive Design
   ========================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #FF6B6B;
    --secondary-color: #4A90E2;
    --accent-color: #FEC601;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border-color: #E1E8ED;
    --success-color: #51CF66;
    --kakao-color: #FEE500;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Navbar */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-sm) 0;
}

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

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

.nav-brand i {
    font-size: 1.5rem;
}

.nav-menu {
    display: none;
    gap: var(--spacing-md);
}

.nav-menu li a {
    font-weight: 500;
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-menu li a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

.mobile-menu-toggle {
    font-size: 1.5rem;
    color: var(--text-dark);
    display: block;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%);
    color: var(--bg-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 1.75rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.badge {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-white);
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.cta-button.secondary {
    background-color: var(--secondary-color);
    color: var(--bg-white);
}

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

section h2 {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

section h2 i {
    color: var(--primary-color);
}

.section-intro {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

/* Recommendations Section */
.recommendations {
    background-color: var(--bg-white);
}

.recommendation-list {
    display: grid;
    gap: var(--spacing-lg);
}

.recommendation-card {
    background-color: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.recommendation-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.rank-badge {
    background-color: var(--text-light);
    color: var(--bg-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 700;
}

.rank-badge.gold {
    background: linear-gradient(135deg, #FFD700, #FFA500);
}

.rank-badge.silver {
    background: linear-gradient(135deg, #C0C0C0, #A8A8A8);
}

.rank-badge.bronze {
    background: linear-gradient(135deg, #CD7F32, #B87333);
}

.card-header h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-dark);
}

.card-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.info-row {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 1rem;
}

.info-row i {
    color: var(--secondary-color);
    margin-top: 0.25rem;
    min-width: 20px;
}

.features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.feature-tag {
    background-color: var(--bg-light);
    color: var(--text-dark);
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.card-description {
    margin-top: var(--spacing-sm);
    color: var(--text-light);
    line-height: 1.7;
}

/* Types Section */
.types {
    background-color: var(--bg-light);
}

.types-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.type-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.type-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.type-icon i {
    font-size: 1.75rem;
    color: var(--bg-white);
}

.type-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.type-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.type-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.type-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-dark);
}

.type-list i {
    color: var(--success-color);
    margin-top: 0.25rem;
}

.type-tip {
    background-color: #FFF4E6;
    border-left: 4px solid var(--accent-color);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-md);
}

.type-tip i {
    color: var(--accent-color);
    margin-right: 0.5rem;
}

.type-tip strong {
    color: var(--text-dark);
}

.type-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--kakao-color);
    color: var(--text-dark);
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    margin-top: var(--spacing-md);
    transition: var(--transition);
}

.type-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Tips Section */
.tips {
    background-color: var(--bg-white);
}

.tips-content {
    display: grid;
    gap: var(--spacing-lg);
}

.tip-box {
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.tip-box h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tip-box h3 i {
    color: var(--secondary-color);
}

.price-table {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.price-row {
    background-color: var(--bg-white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.price-type {
    font-weight: 700;
    color: var(--text-dark);
}

.price-value {
    color: var(--primary-color);
    font-weight: 700;
}

.location-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.location-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.location-list i {
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

.tips-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding-left: var(--spacing-md);
}

.tips-list li {
    color: var(--text-dark);
    line-height: 1.7;
}

.tips-list strong {
    color: var(--primary-color);
}

.cta-box {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    margin-top: var(--spacing-lg);
}

.cta-box p {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-box i {
    margin-right: 0.5rem;
}

/* FAQ Section */
.faq {
    background-color: var(--bg-light);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    background-color: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    text-align: left;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--bg-light);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-question[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-light);
    line-height: 1.7;
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: var(--bg-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-brand i {
    color: var(--primary-color);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.footer-links {
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--kakao-color);
    color: var(--text-dark);
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    transition: var(--transition);
}

.footer-links a:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.footer-keywords {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    margin-top: var(--spacing-md);
    line-height: 1.7;
}

/* Kakao Floating Button */
.kakao-floating {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--kakao-color);
    color: var(--text-dark);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
    text-align: center;
}

.kakao-floating i {
    font-size: 1.75rem;
}

.kakao-floating span {
    font-size: 0.625rem;
    font-weight: 700;
    line-height: 1.2;
}

.kakao-floating:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 32px rgba(254, 229, 0, 0.5);
}

/* Tablet Styles */
@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    .nav-menu {
        display: flex;
    }

    .mobile-menu-toggle {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    section h2 {
        font-size: 2.25rem;
    }

    .recommendation-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .types-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .price-row {
        flex-wrap: nowrap;
    }

    .kakao-floating {
        width: 90px;
        height: 90px;
    }

    .kakao-floating i {
        font-size: 2rem;
    }

    .kakao-floating span {
        font-size: 0.6875rem;
    }
}

/* Desktop Styles */
@media (min-width: 1024px) {
    .hero h1 {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.375rem;
    }

    section h2 {
        font-size: 2.5rem;
    }

    .recommendation-list {
        grid-template-columns: repeat(1, 1fr);
    }

    .types-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .tips-content {
        grid-template-columns: 1fr;
    }
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.recommendation-card,
.type-card,
.faq-item {
    animation: fadeInUp 0.6s ease forwards;
}

.recommendation-card:nth-child(2) { animation-delay: 0.1s; }
.recommendation-card:nth-child(3) { animation-delay: 0.2s; }
.recommendation-card:nth-child(4) { animation-delay: 0.3s; }
.recommendation-card:nth-child(5) { animation-delay: 0.4s; }

/* Popup Modal Styles */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: var(--spacing-sm);
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: var(--transition);
}

.popup-overlay.active .popup-content {
    transform: scale(1);
}

.popup-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.popup-close:hover {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.popup-title {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.popup-title i {
    color: var(--primary-color);
}

.popup-description {
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

.popup-qr {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: block;
}

.popup-telegram-id {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.popup-telegram-id i {
    margin-right: 0.5rem;
}

.popup-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #0088cc, #00a8e8);
    color: var(--bg-white);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 700;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.popup-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.popup-features {
    display: flex;
    justify-content: space-around;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border-color);
}

.popup-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.popup-feature i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Type Card Images */
.type-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    margin: calc(-1 * var(--spacing-lg)) calc(-1 * var(--spacing-lg)) var(--spacing-md);
}

/* Print Styles */
@media print {
    .kakao-floating,
    .navbar,
    .cta-button,
    .popup-overlay {
        display: none;
    }
}