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

:root {
    --bg-deep: #000B14;
    --bg-dark: #050F1A;
    --bg-card: rgba(10, 25, 41, 0.7);
    --accent-blue: #007AFF;
    --accent-light: #58A6FF;
    --text-primary: #FFFFFF;
    --text-secondary: #8B949E;
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(5, 15, 26, 0.85);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

/* ===== Background Effects ===== */
.bg-grid {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    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: 60px 60px;
    z-index: -2;
    pointer-events: none;
}

.bg-gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.5;
}
.orb-1 {
    width: 600px; height: 600px;
    top: -200px; right: -100px;
    background: radial-gradient(circle, rgba(0,122,255,0.12) 0%, transparent 70%);
}
.orb-2 {
    width: 500px; height: 500px;
    bottom: 30%; left: -150px;
    background: radial-gradient(circle, rgba(88,166,255,0.08) 0%, transparent 70%);
}
.orb-3 {
    width: 400px; height: 400px;
    bottom: -100px; right: 20%;
    background: radial-gradient(circle, rgba(0,122,255,0.06) 0%, transparent 70%);
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

.gradient-text {
    background: linear-gradient(135deg, #FFFFFF 0%, rgba(255,255,255,0.6) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-label {
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    display: block;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.2;
    margin-bottom: 1.2rem;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    line-height: 1.8;
}

.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 0;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transition-smooth);
}
.nav.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo img {
    height: 28px;
    transition: var(--transition-smooth);
    filter: brightness(0) invert(1);
    /* 다크 배경용: 로고를 화이트로 변환. 추후 전용 화이트 로고 파일로 교체 권장 */
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.88rem;
    transition: var(--transition-smooth);
    letter-spacing: 0.3px;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--accent-blue);
    transition: width 0.3s ease;
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    background: var(--text-primary);
    color: var(--bg-deep);
    padding: 0.5rem 1.3rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.82rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    letter-spacing: 0.3px;
}
.nav-cta:hover {
    background: rgba(255,255,255,0.85);
    transform: translateY(-1px);
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-mobile-toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--text-primary);
    transition: var(--transition-smooth);
}
.nav-mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

/* Hero Background Video */
.hero-video-wrap {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
}
.hero-video {
    width: 100%; height: 100%;
    object-fit: cover;
}
.hero-video-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background:
        linear-gradient(to bottom,
            rgba(0, 11, 20, 0.7) 0%,
            rgba(0, 11, 20, 0.5) 40%,
            rgba(0, 11, 20, 0.6) 70%,
            rgba(0, 11, 20, 0.95) 100%
        );
    z-index: 1;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.7);
    padding: 0.5rem 1.2rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(4px);
}
.hero-badge-dot {
    width: 6px; height: 6px;
    background: #34D399;
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: clamp(3rem, 6.5vw, 5rem);
    line-height: 1.05;
    margin-bottom: 1.8rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero p {
    color: rgba(255,255,255,0.55);
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    max-width: 480px;
    margin: 0 auto 3rem;
    font-weight: 400;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--text-primary);
    color: var(--bg-deep);
    padding: 0.85rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    letter-spacing: 0.3px;
}
.btn-primary:hover {
    background: rgba(255,255,255,0.85);
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(255,255,255,0.1);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-primary);
    padding: 0.85rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    border: 1px solid rgba(255,255,255,0.25);
    transition: var(--transition-smooth);
    letter-spacing: 0.3px;
}
.btn-secondary:hover {
    border-color: rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.05);
}

.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.scroll-line {
    width: 1px; height: 48px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
    animation: scroll-pulse 2.5s ease-in-out infinite;
}
@keyframes scroll-pulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.2; transform: scaleY(0.5); }
}

/* ===== Proof Bar ===== */
.proof-bar {
    padding: 0;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0,0,0,0.3);
}
.proof-bar-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
}
.proof-item {
    text-align: center;
    padding: 2.5rem 1rem;
    border-right: 1px solid var(--border-color);
}
.proof-item:last-child {
    border-right: none;
}
.proof-number {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}
.proof-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
}

/* ===== About Section ===== */
.about {
    padding: 100px 0;
    text-align: center;
}
.about .section-desc {
    margin: 0 auto;
}

/* ===== Platform Section ===== */
.platform {
    padding: 120px 0;
}

.platform-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    margin-top: 3.5rem;
    background: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.platform-card {
    background: var(--bg-dark);
    border: none;
    padding: 2rem 1.5rem;
    border-radius: 0;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.platform-card:hover {
    background: rgba(0,122,255,0.04);
}

.platform-card-icon {
    width: 44px; height: 44px;
    background: rgba(0,122,255,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}
.platform-card-num {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--accent-light);
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    opacity: 0.6;
}
.platform-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}
.platform-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ===== Services Section ===== */
.services {
    padding: 120px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3.5rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 4px;
    transition: var(--transition-smooth);
}
.service-card:hover {
    border-color: rgba(0,122,255,0.3);
    transform: translateY(-4px);
}

.service-card-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
}
.service-icon {
    width: 40px; height: 40px;
    background: rgba(0,122,255,0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
}
.service-card h3 {
    font-size: 1.2rem;
}

.tag {
    display: inline-block;
    background: rgba(0,122,255,0.08);
    color: var(--accent-light);
    padding: 0.25rem 0.8rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.service-card > p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.2rem;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.service-features span {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 500;
}

/* ===== Performance Section ===== */
.performance {
    padding: 120px 0;
}

.perf-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin-top: 3.5rem;
    padding: 3rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.perf-item {
    text-align: center;
    padding: 1rem 0;
}
.perf-number {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}
.perf-unit {
    font-size: 0.9rem;
    color: var(--accent-light);
    font-weight: 600;
    margin-top: 0.3rem;
}
.perf-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
}

.perf-highlight {
    margin-top: 2.5rem;
    text-align: center;
    padding: 2rem;
    background: rgba(0,122,255,0.04);
    border: 1px solid rgba(0,122,255,0.1);
    border-radius: 4px;
}
.perf-highlight p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 2;
}
.perf-highlight strong {
    color: var(--text-primary);
}

/* ===== Data Lake Section ===== */
.datalake {
    padding: 120px 0;
}
.datalake-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 3.5rem;
}
.dl-card {
    background: var(--bg-dark);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition-smooth);
}
.dl-card:hover {
    background: rgba(0,122,255,0.04);
}
.dl-icon {
    width: 48px; height: 48px;
    margin: 0 auto 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    opacity: 0.7;
}
.dl-card:hover .dl-icon {
    opacity: 1;
    color: var(--accent-blue);
}
.dl-card h4 {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.dl-card p {
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.5;
}

/* ===== Partners Section ===== */
.partners {
    padding: 120px 0;
}

.partner-section-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: 3rem;
    margin-bottom: 1.2rem;
    color: var(--text-primary);
}
.partner-section-icon {
    display: flex;
    align-items: center;
    color: var(--accent-blue);
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}
.partner-logo {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.7rem 1.2rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}
.partner-logo:hover {
    border-color: rgba(0,122,255,0.3);
    color: var(--text-primary);
}
.partner-logo.highlight {
    border-color: rgba(0,122,255,0.2);
    color: var(--text-primary);
    background: rgba(0,122,255,0.05);
}
.partner-logo.global {
    border-color: rgba(52,211,153,0.2);
    color: #34D399;
    background: rgba(52,211,153,0.05);
}
.partner-logo small {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.partner-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 3rem;
    padding: 1.2rem 2rem;
    background: rgba(0,122,255,0.06);
    border: 1px solid rgba(0,122,255,0.15);
    border-radius: 100px;
    color: var(--accent-light);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ===== Business Flow / Ecosystem Section ===== */
.flow {
    padding: 120px 0;
}

.flow-diagram {
    margin-top: 3.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.flow-row {
    display: flex;
    justify-content: center;
}
.flow-row-multi {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    width: 100%;
}

.flow-node {
    text-align: center;
}
.flow-node-center {
    background: var(--bg-card);
    border: 1px solid rgba(0,122,255,0.3);
    padding: 2rem 3rem;
    border-radius: 16px;
    position: relative;
}
.flow-node-icon {
    width: 56px; height: 56px;
    margin: 0 auto 0.8rem;
    background: rgba(0,122,255,0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.flow-node-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
}
.flow-node-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.3rem;
}

.flow-connections {
    display: flex;
    justify-content: center;
    padding: 1.5rem 0;
}
.flow-line {
    width: 1px; height: 40px;
    background: linear-gradient(to bottom, var(--accent-blue), var(--border-color));
}

.flow-node-small {
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.5rem 1rem;
    border-radius: 12px;
    transition: var(--transition-smooth);
}
.flow-node-small:hover {
    border-color: rgba(0,122,255,0.3);
}
.flow-small-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}
.flow-small-desc {
    color: var(--text-secondary);
    font-size: 0.82rem;
}

/* ===== History Timeline ===== */
.history {
    padding: 120px 0;
}

.timeline-wrapper {
    margin-top: 3.5rem;
    position: relative;
    padding-left: 2rem;
}
.timeline-wrapper::before {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 1px; height: 100%;
    background: linear-gradient(to bottom, var(--accent-blue), var(--border-color));
}

.timeline-item {
    position: relative;
    padding: 0 0 2.5rem 2rem;
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem; top: 6px;
    width: 8px; height: 8px;
    background: var(--accent-blue);
    border-radius: 50%;
    border: 2px solid var(--bg-deep);
    transform: translateX(-50%);
    left: -4px;
}
.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-year {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-light);
    letter-spacing: 1px;
    margin-bottom: 0.4rem;
}
.timeline-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}
.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== Contact Section ===== */
.contact {
    padding: 120px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.contact-item-icon {
    width: 40px; height: 40px;
    min-width: 40px;
    background: rgba(0,122,255,0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
}
.contact-item-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 0.2rem;
}
.contact-item-value {
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-group input,
.form-group select,
.form-group textarea {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0,122,255,0.1);
}
.form-group textarea {
    min-height: 120px;
    resize: vertical;
}
.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238B949E' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}
.form-group select option {
    background: var(--bg-dark);
}

.form-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent-blue);
    color: white;
    padding: 0.9rem 2rem;
    border: none;
    border-radius: 8px;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-top: 0.5rem;
}
.form-submit:hover {
    background: #0062CC;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,122,255,0.3);
}
.form-submit:disabled {
    opacity: 0.85;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.contact-form-error {
    color: #f87171;
    font-size: 0.9rem;
    margin: 0.75rem 0 0;
    line-height: 1.4;
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 0;
    border-top: 1px solid var(--border-color);
    background: var(--bg-dark);
}

.footer-top {
    padding-bottom: 2.5rem;
}

.footer-links-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.footer-links h4 {
    font-size: 0.82rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.footer-links ul {
    list-style: none;
}
.footer-links li {
    margin-bottom: 0.5rem;
}
.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    transition: var(--transition-smooth);
}
.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
}
.footer-bottom-left {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}
.footer-logo img {
    height: 18px;
    filter: brightness(0) invert(1);
    opacity: 0.5;
    margin-top: 2px;
}
.footer-legal {
    color: var(--text-secondary);
    font-size: 0.72rem;
    line-height: 1.7;
    opacity: 0.5;
}

/* ===== Notice Modal ===== */
.notice-modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 9999;
    align-items: center;
    justify-content: center;
}
.notice-modal.active {
    display: flex;
    animation: noticeFadeIn 0.25s ease forwards;
}
@keyframes noticeFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.notice-backdrop {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.notice-content {
    position: relative;
    max-width: 480px;
    width: 90%;
    border-radius: 4px;
    overflow: hidden;
    background: #0d1117;
    border: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.8);
    animation: noticeUp 0.3s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes noticeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}
.notice-close {
    position: absolute;
    top: 12px; right: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: rgba(255, 255, 255, 0.4);
    width: 30px; height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    z-index: 1;
}
.notice-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}
.notice-content a {
    display: block;
    line-height: 0;
}
.notice-content img {
    width: 100%;
    height: auto;
    display: block;
}
.notice-footer {
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.notice-today {
    display: flex;
    align-items: center;
    gap: 7px;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.75rem;
    transition: color 0.2s;
}
.notice-today:hover { color: rgba(255, 255, 255, 0.55); }
.notice-today input {
    accent-color: var(--accent-blue);
    cursor: pointer;
    width: 13px; height: 13px;
}
.notice-close-text {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.25);
    font-size: 0.75rem;
    cursor: pointer;
    transition: color 0.2s;
    padding: 0;
}
.notice-close-text:hover { color: rgba(255, 255, 255, 0.55); }

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ===== Responsive ===== */
@media (max-width: 968px) {
    .notice-content { max-width: 420px; }

    .nav-links { display: none; }
    .nav-cta.desktop { display: none; }
    .nav-mobile-toggle { display: flex; }

    .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%; left: 0;
        width: 100%;
        background: var(--glass-bg);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        padding: 1.5rem 2rem;
        border-bottom: 1px solid var(--border-color);
        gap: 1rem;
    }

    .proof-bar-grid { grid-template-columns: repeat(3, 1fr); }
    .proof-item:nth-child(4), .proof-item:nth-child(5) { border-top: 1px solid var(--border-color); }
    .platform-cards { grid-template-columns: repeat(3, 1fr); }
    .platform-cards .platform-card:last-child { grid-column: auto; }
    .datalake-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .perf-grid { grid-template-columns: repeat(3, 1fr); }
    .flow-row-multi { grid-template-columns: repeat(2, 1fr); }
    .footer-links-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
    .notice-content { max-width: 360px; width: 92%; }

    .container { padding: 0 1.2rem; }
    .hero h1 { font-size: 2.2rem; }
    .section-title { font-size: 1.8rem; }

    .proof-bar-grid { grid-template-columns: repeat(2, 1fr); }
    .proof-item { padding: 1.5rem 0.8rem; }
    .proof-item:last-child { grid-column: 1 / -1; }
    .datalake-grid { grid-template-columns: 1fr 1fr; }
    .datalake-grid .dl-card:last-child { grid-column: 1 / -1; }
    .platform-cards { grid-template-columns: repeat(2, 1fr); }
    .platform-cards .platform-card:last-child { grid-column: 1 / -1; }
    .perf-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 1.5rem;
        gap: 1.5rem;
    }
    .perf-grid .perf-item:last-child {
        grid-column: 1 / -1;
    }
    .flow-row-multi { grid-template-columns: 1fr; }
    .footer-links-row { grid-template-columns: 1fr 1fr; }
    .footer-bottom-left { flex-direction: column; gap: 0.8rem; }
}