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

:root {
    --bg-base: #020204;
    --bg-surface: rgba(8, 8, 12, 0.45);
    --bg-surface-elevated: rgba(14, 14, 22, 0.7);
    --border-glass: rgba(255, 255, 255, 0.04);
    --border-glass-hover: rgba(255, 255, 255, 0.08);
    
    --accent-indigo: #6366f1;
    --accent-indigo-glow: rgba(99, 102, 241, 0.15);
    --accent-indigo-gradient: linear-gradient(135deg, #818cf8 0%, #4f46e5 100%);
    
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.15);
    
    --accent-rose: #f43f5e;
    --accent-emerald: #10b981;
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    
    --font-header: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --transition-premium: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── BASE RESET ─── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body {
    overflow-x: hidden;
    position: relative;
}

/* ─── PREMIUM SCROLLBAR ─── */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.4);
}

/* ─── IMMERSIVE BACKDROP ─── */
.main-background {
    position: fixed;
    inset: 0;
    z-index: -100;
    background-color: var(--bg-base);
    overflow: hidden;
}

.main-background::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        radial-gradient(rgba(99, 102, 241, 0.008) 1.5px, transparent 1.5px);
    background-size: 32px 32px;
    background-position: 0 0, 16px 16px;
    opacity: 0.8;
}

.glow-overlay {
    position: absolute;
    width: 60vw;
    height: 60vh;
    top: -20vh;
    left: 20vw;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.09) 0%, rgba(6, 182, 212, 0.04) 50%, transparent 100%);
    filter: blur(80px);
    pointer-events: none;
    animation: slowDrift 20s infinite alternate ease-in-out;
}

.glow-overlay-2 {
    position: absolute;
    width: 45vw;
    height: 45vh;
    bottom: -10vh;
    right: 5vw;
    background: radial-gradient(circle, rgba(244, 63, 94, 0.03) 0%, rgba(99, 102, 241, 0.03) 60%, transparent 100%);
    filter: blur(100px);
    pointer-events: none;
    animation: slowDrift2 25s infinite alternate ease-in-out;
}

@keyframes slowDrift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(8%, 10%) scale(1.15); }
}
@keyframes slowDrift2 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-10%, -8%) scale(1.1); }
}

/* ─── FLOATING GLASS NAVIGATION ─── */
.nav-main {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 1200px;
    z-index: 1000;
    padding: 14px 32px;
    background: rgba(3, 3, 5, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 99px;
    transition: var(--transition-premium);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.nav-main:hover {
    border-color: rgba(99, 102, 241, 0.15);
    box-shadow: 0 15px 50px rgba(99, 102, 241, 0.05);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-header);
    font-weight: 900;
    font-size: 1.1rem;
    letter-spacing: 0.1em;
}

.brand-logo {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.6));
}

.nav-brand span {
    background: linear-gradient(to right, #fff 40%, rgba(255,255,255,0.6) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-link-item {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: var(--transition-fast);
    position: relative;
    padding: 6px 0;
}

.nav-link-item::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent-indigo-gradient);
    transition: var(--transition-premium);
}

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

.nav-link-item:hover::after {
    width: 100%;
}

.nav-btn {
    padding: 10px 24px;
    background: var(--text-primary);
    color: var(--bg-base);
    border-radius: 99px;
    font-weight: 600;
    font-size: 0.8125rem;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: var(--transition-premium);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.nav-btn:hover {
    transform: translateY(-2px);
    background: #f4f4f5;
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.25);
}

/* ─── HERO SECTION ─── */
.hero {
    padding: 180px 24px 100px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-indigo);
    margin-bottom: 36px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.05);
}

.badge::before {
    content: "";
    display: block;
    width: 6px;
    height: 6px;
    background: var(--accent-emerald);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-emerald);
    animation: beaconPulse 1.5s infinite alternate;
}

@keyframes beaconPulse {
    0% { transform: scale(0.8); opacity: 0.6; }
    100% { transform: scale(1.2); opacity: 1; }
}

.hero-title {
    font-family: var(--font-header);
    font-size: clamp(2.5rem, 7vw, 4.75rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
    max-width: 800px;
    text-transform: uppercase;
}

.text-gradient {
    background: linear-gradient(135deg, #ffffff 30%, rgba(255, 255, 255, 0.5) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
}

.hero-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 48px;
    line-height: 1.6;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 80px;
    width: 100%;
    max-width: 500px;
}

.btn {
    padding: 14px 28px;
    border-radius: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-premium);
    font-size: 0.875rem;
    letter-spacing: 0.02em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-indigo-gradient);
    color: white;
    box-shadow: 0 8px 30px rgba(79, 70, 229, 0.35);
    border: 1px solid rgba(255,255,255,0.08);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.5);
    border-color: rgba(255,255,255,0.15);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-glass-hover);
    transform: translateY(-2px);
}

/* ─── SPECTACULAR INTERACTIVE HOLO-WIDGET ─── */
.interactive-mockup-wrapper {
    width: 100%;
    max-width: 1050px;
    margin: 0 auto 120px;
    position: relative;
    padding: 2px;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.01) 100%);
    box-shadow: 0 30px 100px rgba(0,0,0,0.8);
}

.interactive-mockup-wrapper::before {
    content: "";
    position: absolute;
    top: -50px;
    left: 5%;
    width: 90%;
    height: 120px;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.12) 0%, transparent 60%);
    z-index: -1;
    pointer-events: none;
}

.mockup-container {
    background: rgba(4, 4, 6, 0.85);
    border-radius: 22px;
    overflow: hidden;
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    display: grid;
    grid-template-columns: 240px 1fr;
    height: 520px;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

/* Mockup Sidebar */
.mockup-sidebar {
    border-right: 1px solid var(--border-glass);
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    background: rgba(2, 2, 3, 0.5);
    text-align: left;
}

.mockup-brand {
    font-family: var(--font-header);
    font-weight: 900;
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-glass);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mockup-brand::before {
    content: "";
    width: 8px;
    height: 8px;
    background: var(--accent-indigo);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-indigo);
}

.mockup-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.mockup-nav-item.active {
    background: rgba(99, 102, 241, 0.06);
    color: var(--text-primary);
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.mockup-nav-item svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

/* Mockup Main View */
.mockup-main {
    padding: 32px 40px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    text-align: left;
}

.mockup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.mockup-title-block h3 {
    font-family: var(--font-header);
    font-weight: 800;
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.mockup-title-block p {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.mockup-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    align-items: start;
}

/* Mockup Cards */
.mockup-card {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.mockup-card-title {
    font-size: 0.6875rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mockup-card-title::before {
    content: "";
    width: 4px;
    height: 4px;
    background: var(--accent-cyan);
    border-radius: 50%;
}

.mockup-stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.mockup-stat-item {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.mockup-stat-val {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.mockup-stat-label {
    font-size: 0.625rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
}

.mockup-console {
    background: rgba(0, 0, 0, 0.45);
    border-radius: 12px;
    border: 1px solid var(--border-glass);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.6;
    color: #a5b4fc;
    min-height: 120px;
}

.console-cursor {
    display: inline-block;
    width: 6px;
    height: 14px;
    background: var(--accent-indigo);
    animation: cursorBlink 1s infinite;
}

@keyframes cursorBlink {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

/* Interactive Slider switch inside card */
.mockup-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.mockup-row:last-child {
    border: none;
}

.mockup-row-left {
    display: flex;
    flex-direction: column;
}

.mockup-row-title {
    font-size: 0.8125rem;
    font-weight: 600;
}

.mockup-row-subtitle {
    font-size: 0.6875rem;
    color: var(--text-secondary);
}

.mockup-switch {
    width: 38px;
    height: 20px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 99px;
    position: relative;
    cursor: pointer;
    border: 1px solid var(--border-glass);
}

.mockup-switch::after {
    content: "";
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mockup-switch.active {
    background: var(--accent-indigo);
}

.mockup-switch.active::after {
    left: 20px;
}

/* ─── EDITORIAL ASYMMETRIC FEATURES ─── */
.features-section {
    padding: 80px 24px 160px;
    max-width: 1200px;
    margin: 0 auto;
}

.features-header {
    text-align: center;
    margin-bottom: 80px;
}

.features-header h2 {
    font-family: var(--font-header);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.features-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-surface);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    padding: 48px;
    border-radius: 28px;
    transition: var(--transition-premium);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.02) 0%, transparent 60%);
    pointer-events: none;
    transition: var(--transition-premium);
}

/* Asymmetry: Spanning Cards */
.feature-card.col-8 {
    grid-column: span 8;
}

.feature-card.col-4 {
    grid-column: span 4;
}

.feature-card.col-6 {
    grid-column: span 6;
}

.feature-card:hover {
    border-color: rgba(99, 102, 241, 0.2);
    background: var(--bg-surface-elevated);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.08) 0%, transparent 50%);
}

.card-icon {
    width: 52px;
    height: 52px;
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
    transition: var(--transition-premium);
}

.feature-card:hover .card-icon {
    background: rgba(99, 102, 241, 0.1);
    transform: scale(1.05);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}

.card-icon svg {
    width: 22px;
    height: 22px;
    color: var(--accent-indigo);
}

.card-content {
    display: flex;
    flex-direction: column;
}

.card-title {
    font-family: var(--font-header);
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* Latency Indicator Overlay style for specific card */
.latency-panel-demo {
    margin-top: 24px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.latency-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 700;
}

.latency-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-emerald);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-emerald);
}

.latency-label {
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.latency-value {
    font-family: var(--font-mono);
    color: var(--accent-emerald);
}

/* ─── FOOTER ─── */
.footer {
    padding: 80px 24px;
    border-top: 1px solid var(--border-glass);
    background: rgba(2, 2, 4, 0.95);
    backdrop-filter: blur(20px);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    text-decoration: none;
    font-family: var(--font-header);
    letter-spacing: 0.05em;
    font-size: 0.9rem;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
}

/* ─── RESPONSIVE BREAKPOINTS ─── */
@media (max-width: 1024px) {
    .feature-card.col-8,
    .feature-card.col-4,
    .feature-card.col-6 {
        grid-column: span 12;
    }
    
    .interactive-mockup-wrapper {
        margin-bottom: 80px;
    }
}

@media (max-width: 768px) {
    .nav-main {
        top: 16px;
        padding: 12px 24px;
    }
    .nav-links {
        display: none;
    }
    .hero {
        padding-top: 150px;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    .btn {
        width: 100%;
    }
    
    .mockup-container {
        grid-template-columns: 1fr;
        height: auto;
    }
    .mockup-sidebar {
        display: none;
    }
    .mockup-main {
        padding: 24px;
    }
    .mockup-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}