@charset "UTF-8";

:root {
    /* Premium Color Palette */
    --bg-base: #02040a;
    --bg-surface: rgba(10, 14, 23, 0.6);
    --bg-surface-hover: rgba(16, 24, 40, 0.75);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #475569;
    
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-indigo: #6366f1;
    --accent-purple: #8b5cf6;
    
    --border-light: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(59, 130, 246, 0.3);
    
    /* Typography */
    --font-sans: 'Inter', 'Pretendard', sans-serif;
    
    /* Effects */
    --glass-blur: blur(24px);
    --shadow-soft: 0 12px 40px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.2);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body.dark-tech-theme {
    color: var(--text-primary);
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center { text-align: center; }
.relative { position: relative; }
.mt-2 { margin-top: 2rem; }
.text-blue { color: var(--accent-blue); }
.text-indigo { color: var(--accent-indigo); }
.hover-text-blue:hover { color: var(--accent-blue); }

/* --- Ambient Aurora Background --- */
.ambient-bg {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(circle at center, #050b14 0%, var(--bg-base) 100%);
}

.mesh-grid {
    position: absolute;
    width: 100vw; height: 100vh;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.8;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: drift 20s infinite alternate ease-in-out;
}

.orb-1 {
    width: 60vw; height: 60vw; max-width: 700px; max-height: 700px;
    background: rgba(6, 182, 212, 0.15); /* Cyan */
    top: -20%; left: -10%;
}

.orb-2 {
    width: 50vw; height: 50vw; max-width: 600px; max-height: 600px;
    background: rgba(99, 102, 241, 0.15); /* Indigo */
    bottom: -10%; right: -10%;
    animation-delay: -5s;
}

.orb-3 {
    width: 40vw; height: 40vw; max-width: 500px; max-height: 500px;
    background: rgba(59, 130, 246, 0.1); /* Blue */
    top: 30%; left: 40%;
    animation-delay: -10s;
}

@keyframes drift {
    0% { transform: scale(1) translate(0, 0); }
    50% { transform: scale(1.1) translate(30px, 30px); }
    100% { transform: scale(0.9) translate(-30px, -20px); }
}

/* --- Premium Glassmorphism --- */
.glass {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-light);
}

.glass-panel {
    background: rgba(15, 23, 42, 0.4); /* Slate dark */
    backdrop-filter: blur(32px);
    -webkit-backdrop-filter: blur(32px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-light);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.header-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
}

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

.btn-small {
    padding: 0.6rem 1.25rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

.outline-btn {
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}
.outline-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-highlight);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-indigo) 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: skewX(-20deg);
    transition: left 0.6s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.6);
}

.btn-primary:hover::before {
    left: 150%;
}

.btn-large {
    padding: 1.2rem 2.8rem;
    font-size: 1.15rem;
}

.btn-icon {
    margin-right: 8px;
    font-size: 0.9em;
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
    padding-bottom: 4rem;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.glass-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 2rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--accent-cyan);
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1.5px;
}

.text-gradient {
    background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 500px;
    line-height: 1.8;
}

/* --- Hero Visual (Image Wrapper) --- */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
    border-radius: 30px;
    transform: rotateX(5deg) rotateY(-10deg);
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.hero-image-wrapper:hover {
    transform: rotateX(0deg) rotateY(0deg) translateY(-10px);
}

.hero-image {
    width: 100%;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), inset 0 0 0 1px rgba(255,255,255,0.15);
    display: block;
}

.hero-glow {
    position: absolute;
    top: 10%; left: 10%; right: 10%; bottom: -10%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    filter: blur(60px);
    opacity: 0.3;
    z-index: -1;
    border-radius: inherit;
    transition: opacity 0.6s;
}
.hero-image-wrapper:hover .hero-glow {
    opacity: 0.5;
}


/* --- Features Section --- */
.section { padding: 8rem 0; }
.section-title { font-size: 3.5rem; margin-bottom: 1rem; line-height: 1.2; font-weight: 800; letter-spacing: -1px; }
.section-desc { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 5rem; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    padding: 3rem 2.5rem;
    border-radius: 24px;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-highlight);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 0 0 1px var(--border-highlight);
    background: rgba(30, 41, 59, 0.6);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    width: 70px; height: 70px;
    display: flex; justify-content: center; align-items: center;
    border-radius: 20px;
}

.icon-blue { background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0.05)); border: 1px solid rgba(59,130,246,0.3); }
.icon-indigo { background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(99, 102, 241, 0.05)); border: 1px solid rgba(99,102,241,0.3); }
.icon-cyan { background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(6, 182, 212, 0.05)); border: 1px solid rgba(6,182,212,0.3); }

.feature-card h3 { font-size: 1.5rem; margin-bottom: 1rem; font-weight: 700; }
.feature-card p { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.7; }

/* --- CTA Section --- */
.cta-box {
    padding: 6rem 3rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.8), rgba(30, 41, 59, 0.6));
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content { position: relative; z-index: 2; }
.cta-content h2 { font-size: 3rem; margin-bottom: 1.5rem; font-weight: 800; letter-spacing:-1px; }
.cta-content p { color: var(--text-secondary); font-size: 1.2rem; margin-bottom: 3rem; }

/* --- Footer --- */
.site-footer {
    padding: 3rem 0;
    margin-top: 4rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    background: rgba(2, 4, 10, 0.8);
}

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

.footer-copy p { font-size: 0.9rem; color: var(--text-muted); }
.footer-legal { display: flex; gap: 1.5rem; align-items: center; }
.footer-link { font-size: 0.95rem; color: var(--text-secondary); font-weight: 500; }
.separator { color: var(--border-light); font-size: 0.9rem; }

/* --- Legal Pages Specific --- */
.legal-main {
    padding-top: 10rem;
    padding-bottom: 6rem;
}

.legal-content {
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(32px);
    -webkit-backdrop-filter: blur(32px);
    border: 1px solid rgba(255,255,255,0.08);
    border-top: 1px solid rgba(255,255,255,0.15);
    border-radius: 30px;
    padding: 4rem;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: var(--shadow-soft);
}

.legal-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.legal-content h2 {
    font-size: 1.6rem;
    margin-top: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-cyan);
    font-weight: 700;
}

.legal-content p, .legal-content li {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    line-height: 1.8;
    font-size: 1.05rem;
}

.legal-content ul {
    padding-left: 1.5rem;
    margin-bottom: 2rem;
}

.legal-content .last-updated {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.3);
    margin-bottom: 4rem;
    display: block;
    font-weight: 500;
}

.legal-content a {
    color: var(--accent-blue);
    text-decoration: none;
    border-bottom: 1px solid transparent;
}
.legal-content a:hover {
    border-bottom-color: var(--accent-blue);
}

/* --- Animations --- */
.animate-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.9s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.animate-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero-layout, .features-grid { grid-template-columns: 1fr; }
    .hero-content { text-align: center; }
    .hero-subtitle { margin: 0 auto 3rem; }
    .hero-title { font-size: 3.5rem; }
    .hero-visual { margin-top: 2rem; }
    .section-title { font-size: 2.8rem; }
    .legal-content { padding: 3rem 2rem; }
}

@media (max-width: 768px) {
    .header-nav .nav-link:not(.btn-small) { display: none; }
    .hero { padding-top: 8rem; }
    .hero-title { font-size: 3rem; }
    .footer-layout { flex-direction: column; gap: 1.5rem; text-align: center; }
    .legal-content h1 { font-size: 2.5rem; }
    .legal-content h2 { font-size: 1.4rem; }
}