/* ==========================================================================
   겜스고 가이드 - 프리미엄 SaaS 스타일 다크 테마 v3.0
   Design Language: Apple + Stripe + Notion (Minimal & Premium Dark)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&family=Noto+Sans+KR:wght@300;400;500;700;900&display=swap');

/* ===== 1. 디자인 토큰 및 변수 (CSS Custom Properties) ===== */
:root {
    /* Color Palette */
    --primary-color: #6366f1;       /* Indigo */
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.25);
    
    --accent-cyan: #22d3ee;         /* Cyan */
    --accent-emerald: #10b981;      /* Emerald */
    --accent-rose: #f43f5e;         /* Rose (공식가 취소선 강조 등) */
    --accent-amber: #f59e0b;        /* Amber */
    
    /* Dark Theme Surface Colors */
    --bg-body: #030712;             /* Super Dark Gray (Tailwind Slate-950) */
    --bg-surface: #0b0f19;          /* Deep Dark Blue-Gray */
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --bg-glass: rgba(255, 255, 255, 0.02);
    --bg-glass-strong: rgba(255, 255, 255, 0.05);
    
    /* Borders & Outlines */
    --border-glass: rgba(255, 255, 255, 0.07);
    --border-glass-hover: rgba(255, 255, 255, 0.15);
    --border-glow: rgba(99, 102, 241, 0.3);

    /* Typography System */
    --text-dark: #f9fafb;           /* Gray 50 (주요 헤드라인) */
    --text-primary: #f3f4f6;        /* Gray 100 (일반 본문) */
    --text-secondary: #9ca3af;      /* Gray 400 (설명/부텍스트) */
    --text-muted: #6b7280;          /* Gray 500 (주석/보조텍스트) */
    
    --font-heading: 'Outfit', 'Noto Sans KR', -apple-system, sans-serif;
    --font-body: 'Inter', 'Noto Sans KR', -apple-system, sans-serif;

    /* Spacing System (4px/8px Base) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-6: 24px;
    --space-8: 32px;
    --space-12: 48px;
    --space-16: 64px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --radius-full: 9999px;

    /* Transition System */
    --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
}

/* ===== 2. 전역 스타일 초기화 및 가독성 개선 ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.625;
    letter-spacing: -0.011em;
    overflow-x: hidden;
    position: relative;
}

/* 프리미엄 배경 오로라 이펙트 */
body::before {
    content: '';
    position: fixed;
    top: -40%;
    left: -20%;
    width: 150%;
    height: 150%;
    background: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.04) 0%, transparent 45%),
        radial-gradient(circle at 90% 10%, rgba(34, 211, 238, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(244, 63, 94, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: -2;
    animation: aurora 25s ease-in-out infinite alternate;
}

@keyframes aurora {
    0% { transform: rotate(0deg) translate(0, 0); }
    100% { transform: rotate(3deg) translate(2%, 2%); }
}

/* 스크롤바 커스텀 */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-body);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 선택 효과 */
::selection {
    background-color: rgba(99, 102, 241, 0.3);
    color: #fff;
}

/* 타이포그래피 정립 */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.025em;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--accent-cyan);
}

p {
    color: var(--text-secondary);
}

/* ===== 3. 공통 컴포넌트: 네비게이션 바 (Stripe-Style Navbar) ===== */
.navbar {
    background: rgba(3, 7, 18, 0.7) !important;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-glass);
    padding: var(--space-4) 0 !important;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(3, 7, 18, 0.9) !important;
    border-bottom-color: rgba(99, 102, 241, 0.15);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    padding: var(--space-3) 0 !important;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.brand-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 30%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1.2rem !important;
    position: relative;
    transition: color var(--transition-fast) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-cyan));
    transition: all var(--transition-normal);
    transform: translateX(-50%);
    border-radius: var(--radius-full);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--text-dark) !important;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 60%;
}

.navbar-toggler {
    border: 1px solid var(--border-glass) !important;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 2px var(--primary-glow) !important;
}

.navbar-toggler-icon {
    filter: invert(1);
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        background: rgba(11, 15, 25, 0.98);
        backdrop-filter: blur(24px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-lg);
        margin-top: var(--space-4);
        padding: var(--space-4);
    }
}

/* ===== 4. Hero Section (Premium SaaS Showcase) ===== */
.blog-header {
    background: radial-gradient(ellipse at center, rgba(17, 24, 39, 0.5) 0%, var(--bg-body) 100%);
    padding: var(--space-16) 0 var(--space-12);
    position: relative;
    overflow: hidden;
}

.header-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-6);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.05);
}

.header-title {
    font-size: clamp(2.2rem, 5vw, 3.75rem);
    font-weight: 800;
    line-height: 1.15;
    background: linear-gradient(135deg, #ffffff 40%, var(--primary-light) 70%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-6);
}

.header-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-8);
}

.header-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: var(--space-8);
}

.meta-item {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-glass-strong);
    border: 1px solid var(--border-glass);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.meta-item i {
    color: var(--primary-light);
}

/* ===== 5. UI Mockup (Premium SaaS Showcase) ===== */
.ui-mockup-container {
    max-width: 900px;
    margin: var(--space-12) auto 0;
    padding: 0 var(--space-4);
    perspective: 1000px;
}

.ui-mockup {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid var(--border-glass-hover);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    overflow: hidden;
    transform: rotateX(5deg);
    transition: transform var(--transition-slow);
}

.ui-mockup:hover {
    transform: rotateX(0deg) translateY(-8px);
}

.mockup-header {
    background: rgba(3, 7, 18, 0.4);
    border-bottom: 1px solid var(--border-glass);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot-1 { background-color: #ef4444; }
.dot-2 { background-color: #fbbf24; }
.dot-3 { background-color: #10b981; }

.mockup-address {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    flex-grow: 1;
    max-width: 300px;
    margin: 0 auto;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    padding: 2px 0;
}

.mockup-body {
    padding: var(--space-6);
    background-color: var(--bg-surface);
}

/* ===== 6. CTA & Buttons ===== */
.cta-box {
    background: var(--gradient-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--space-8) var(--space-6);
    text-align: center;
    margin: var(--space-12) 0;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff !important;
    font-weight: 600;
    font-size: 1rem;
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-full);
    border: none;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cta-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: all var(--transition-slow);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5), var(--shadow-glow);
}

.cta-button:hover::after {
    left: 100%;
}

.cta-button.glow-pulse {
    animation: ctaGlow 2.5s infinite;
}

@keyframes ctaGlow {
    0%, 100% { box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 4px 40px rgba(99, 102, 241, 0.6), 0 0 60px rgba(99, 102, 241, 0.2); }
}

/* ===== 7. Content Sections (Glassmorphic Cards) ===== */
.content-wrapper {
    padding: var(--space-12) 0 var(--space-16);
}

.content-section {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    margin-bottom: var(--space-8);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.content-section:hover {
    border-color: var(--border-glass-hover);
    box-shadow: var(--shadow-md);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: var(--space-6);
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

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

/* Info, Tip, Warning Boxes */
.info-box, .tip-box, .warning-box {
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-6);
    margin: var(--space-6) 0;
    border-left: 4px solid;
    font-size: 0.95rem;
}

.info-box {
    background-color: rgba(99, 102, 241, 0.06);
    border-left-color: var(--primary-color);
    color: var(--text-primary);
}

.tip-box {
    background-color: rgba(16, 185, 129, 0.06);
    border-left-color: var(--accent-emerald);
    color: var(--text-primary);
}

.warning-box {
    background-color: rgba(245, 158, 11, 0.06);
    border-left-color: var(--accent-amber);
    color: var(--text-primary);
}

/* ===== 8. SPU 상품 카드 그리드 UI (Gamsgo Premium Cards) ===== */
.streaming-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-6);
}

@media (min-width: 992px) {
    .streaming-services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 991.98px) and (min-width: 768px) {
    .streaming-services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 767.98px) {
    .streaming-services-grid {
        grid-template-columns: 1fr;
    }
}

.streaming-service-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.streaming-service-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-glass-hover);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.service-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.service-title-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* 서비스 로고 브랜딩 스타일 */
.ai-tool-logo, .music-logo, .video-logo {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #fff;
    background: var(--bg-glass-strong);
}

.ai-tool-logo.chatgpt { background: linear-gradient(135deg, #10a37f 0%, #0d8466 100%); }
.ai-tool-logo.claude { background: linear-gradient(135deg, #f38020 0%, #cc6614 100%); }
.ai-tool-logo.gemini { background: linear-gradient(135deg, #1a73e8 0%, #1558b3 100%); }
.ai-tool-logo.midjourney { background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%); }
.ai-tool-logo.perplexity { background: linear-gradient(135deg, #00a8a8 0%, #008080 100%); }
.ai-tool-logo.gamma { background: linear-gradient(135deg, #8a2be2 0%, #6a1b9a 100%); }

.service-title-group h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
}

.service-price-group {
    text-align: right;
}

.service-price {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent-cyan);
    font-family: var(--font-heading);
}

.service-price span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.service-content {
    padding: var(--space-6);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: var(--space-6);
}

.service-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.service-features {
    list-style: none !important;
    padding-left: 0 !important;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.service-features li {
    font-size: 0.85rem;
    color: var(--text-primary);
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}

/* 체크마크 유니코드 및 정돈 */
.service-features li::before {
    content: '\2713';
    color: var(--accent-emerald);
    font-weight: 700;
}

.service-action-group {
    margin-top: auto;
}

.service-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background-color: var(--bg-glass-strong);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-dark) !important;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.service-btn:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px var(--primary-glow);
    transform: translateY(-2px);
}

/* ===== 9. 가격 비교 요금제 표 (Pricing Table) ===== */
.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: var(--space-6) 0;
}

.comparison-table th {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--text-dark);
    font-weight: 600;
    padding: var(--space-4);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-glass);
}

.comparison-table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: center;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

.comparison-table .highlight-col {
    background-color: rgba(99, 102, 241, 0.04);
    color: var(--primary-light);
    font-weight: 600;
}

/* ===== 10. FAQ Section (Accordion UI) ===== */
.faq-section {
    padding: var(--space-12) 0;
}

.faq-container {
    max-width: 750px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.faq-item {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--border-glass-hover);
}

.faq-question {
    padding: var(--space-4) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0;
}

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

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) ease-out, padding var(--transition-normal) ease-out;
    background-color: rgba(0, 0, 0, 0.15);
}

.faq-item.active .faq-answer {
    max-height: 250px;
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-glass);
}

.faq-answer p {
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.7;
}

/* ===== 11. Scroll to Top & Fixed Bottom CTA ===== */
.scroll-to-top {
    position: fixed;
    bottom: 90px;
    right: var(--space-6);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

/* 모바일 전용 Sticky Floating CTA */
.fixed-bottom-cta {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    width: 90%;
    max-width: 450px;
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from { transform: translate(-50%, 100px); opacity: 0; }
    to { transform: translate(-50%, 0); opacity: 1; }
}

.fixed-cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: 1px solid var(--border-glass-hover);
    border-radius: var(--radius-full);
    color: #fff !important;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
    transition: all var(--transition-normal);
}

.fixed-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.6), var(--shadow-glow);
}

.fixed-cta-button i {
    animation: bounceRight 1.5s infinite;
}

@keyframes bounceRight {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4px); }
}

/* ===== 12. Footer Section (Premium SaaS Footer) ===== */
.footer-section {
    background: linear-gradient(to top, #010409 0%, #030712 100%);
    border-top: 1px solid var(--border-glass);
    padding: var(--space-16) 0 var(--space-8);
    color: var(--text-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(2, 1fr);
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

@media (max-width: 767.98px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

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

.footer-description {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-glass-strong);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: #fff !important;
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.footer-section-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-section-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

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

.footer-links {
    list-style: none !important;
    padding-left: 0 !important;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links li {
    list-style: none !important;
}

.footer-links li a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-fast);
}

.footer-links li a:hover {
    color: var(--primary-light);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid var(--border-glass);
    padding-top: var(--space-6);
}

.footer-bottom-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

@media (max-width: 575.98px) {
    .footer-bottom-grid {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

.footer-links-bottom {
    display: flex;
    gap: var(--space-6);
}

.footer-links-bottom a {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-links-bottom a:hover {
    color: var(--primary-light);
}

/* ===== 13. Sidebar & Quick Links (Blog Page Layout) ===== */
.sidebar {
    position: sticky;
    top: 90px;
}

.sidebar-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--space-4);
    border-left: 3px solid var(--primary-color);
    padding-left: var(--space-2);
}

.quick-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.quick-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background-color: var(--bg-glass-strong);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary) !important;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.quick-link:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--border-glass-hover);
    transform: translateX(4px);
}

.quick-link.primary {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0.05) 100%);
    border-color: rgba(99, 102, 241, 0.25);
    color: var(--primary-light) !important;
}

.quick-link.primary:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(99, 102, 241, 0.1) 100%);
    border-color: rgba(99, 102, 241, 0.4);
}

.popular-services {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.video-streaming-service-item {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: var(--space-3);
    transition: all var(--transition-fast);
}

.video-streaming-service-item:hover {
    background-color: var(--bg-glass-strong);
}

.service-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
}

.service-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-2);
}

.benefit-text {
    font-size: 0.75rem;
    color: var(--accent-cyan);
    font-weight: 500;
}

.service-go-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: var(--bg-glass-strong);
    color: var(--text-dark);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: all var(--transition-fast);
}

.service-go-btn:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* NProgress & Animations */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===================================
   14. Language Switcher (KO | EN)
   =================================== */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: blur(8px);
    margin-left: 1rem;
}

.lang-btn {
    color: rgba(255, 255, 255, 0.6) !important;
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 700;
    transition: all var(--transition-fast) ease;
    cursor: pointer;
    padding: 2px 6px;
}

.lang-btn:hover {
    color: #fff !important;
}

.lang-btn.active {
    color: #fff !important;
    background: var(--primary-color);
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

.lang-divider {
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.75rem;
}