/* ============================================
   SERENE MOTA — Back to the Future Theme
   ============================================ */

/* --- Custom Properties --- */
:root {
    --bg-primary: #0b0620;
    --bg-secondary: #0e0a2a;
    --bg-card: #140f30;
    --bg-card-hover: #1c1545;

    --text-primary: #f0e6d3;
    --text-secondary: rgba(240,230,211,0.7);
    --text-muted: rgba(240,230,211,0.4);

    --accent-orange: #ff8c00;
    --accent-amber: #ffb347;
    --accent-red: #ff3366;
    --accent-cyan: #00d4ff;
    --accent-blue: #1e90ff;

    --glow-orange: rgba(255,140,0,0.4);
    --glow-cyan: rgba(0,212,255,0.3);
    --glow-red: rgba(255,51,102,0.3);

    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;

    --radius: 4px;
    --radius-lg: 8px;
    --transition: 0.3s ease;
    --nav-height: 70px;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    background:
        radial-gradient(ellipse at 15% 10%, rgba(90,50,180,0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 85% 20%, rgba(0,100,200,0.1) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 60%, rgba(120,40,160,0.08) 0%, transparent 55%),
        radial-gradient(ellipse at 70% 90%, rgba(0,180,220,0.06) 0%, transparent 40%),
        radial-gradient(ellipse at 25% 80%, rgba(180,100,255,0.06) 0%, transparent 50%),
        var(--bg-primary);
    background-attachment: fixed;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

a { color: var(--accent-orange); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-amber); }

img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Gradient Text --- */
.gradient-text {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-amber), var(--accent-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Preloader / Flux Capacitor Boot --- */
#preloader {
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, #120a30 0%, #0b0620 100%);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.flux-boot {
    text-align: center;
}

.flux-capacitor-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    position: relative;
}

.flux-y {
    width: 100%;
    height: 100%;
    position: relative;
}

.flux-arm {
    position: absolute;
    width: 4px;
    height: 50px;
    background: var(--accent-orange);
    left: 50%;
    top: 50%;
    transform-origin: center top;
    border-radius: 2px;
    box-shadow: 0 0 15px var(--glow-orange), 0 0 30px var(--glow-orange);
    animation: fluxPulse 0.8s ease-in-out infinite alternate;
}

.flux-arm-1 { transform: translateX(-50%) rotate(0deg); }
.flux-arm-2 { transform: translateX(-50%) rotate(120deg); }
.flux-arm-3 { transform: translateX(-50%) rotate(240deg); }

.flux-center {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-orange);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 20px var(--accent-orange), 0 0 40px var(--glow-orange);
    animation: fluxPulse 0.5s ease-in-out infinite alternate;
}

@keyframes fluxPulse {
    from { opacity: 0.4; }
    to { opacity: 1; }
}

.boot-text {
    font-family: var(--font-mono);
    color: var(--accent-orange);
    font-size: 14px;
    letter-spacing: 2px;
}

.fluxing {
    animation: fluxBlink 0.3s steps(1) infinite;
}

@keyframes fluxBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* --- Lightning Canvas Overlay --- */
.lightning-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
    background: rgba(11,6,32,0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(180,160,255,0.08);
    transition: background var(--transition), border-color var(--transition);
}

.navbar.scrolled {
    background: rgba(11,6,32,0.95);
    border-bottom-color: rgba(180,160,255,0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 20px;
    text-decoration: none;
}

.logo-atom {
    flex-shrink: 0;
    display: inline-block;
    filter: drop-shadow(0 0 4px rgba(255,255,0,0.3));
}

.logo-glow {
    color: var(--accent-orange);
    text-shadow: 0 0 20px var(--glow-orange);
}

.logo-accent {
    color: var(--text-primary);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 32px;
    height: 24px;
    position: relative;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--text-primary);
    position: absolute;
    left: 0;
    right: 0;
    transition: var(--transition);
}

.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 11px; }
.nav-toggle span:nth-child(3) { top: 22px; }

.nav-toggle.active span:nth-child(1) { top: 11px; transform: rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { top: 11px; transform: rotate(-45deg); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color var(--transition), text-shadow var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--accent-orange);
    text-shadow: 0 0 10px var(--glow-orange);
}

.nav-links a.nav-cta {
    background: var(--accent-orange);
    color: var(--bg-primary);
    padding: 8px 20px;
    border-radius: var(--radius);
    font-weight: 700;
}

.nav-links a.nav-cta:hover {
    background: var(--accent-amber);
    color: var(--bg-primary);
    text-shadow: none;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 14px 28px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-orange), #ff6600);
    color: var(--bg-primary);
    box-shadow: 0 0 20px var(--glow-orange), 0 4px 15px rgba(0,0,0,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px var(--glow-orange), 0 8px 25px rgba(0,0,0,0.4);
    color: var(--bg-primary);
}

.btn-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.15), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.btn:hover .btn-glow {
    transform: translateX(100%);
}

.btn-outline {
    background: transparent;
    color: var(--accent-orange);
    border: 1px solid rgba(255,140,0,0.4);
}

.btn-outline:hover {
    background: rgba(255,140,0,0.1);
    border-color: var(--accent-orange);
    color: var(--accent-amber);
}

.btn-lg { padding: 18px 36px; font-size: 15px; }
.btn-full { width: 100%; justify-content: center; }

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: calc(var(--nav-height) + 40px) 24px 60px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(255,140,0,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 30%, rgba(0,212,255,0.05) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 100%, rgba(255,51,102,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    z-index: 2;
}

/* Time Circuit Badge */
.time-circuit-badge {
    display: inline-block;
    margin-bottom: 24px;
    border: 1px solid rgba(255,140,0,0.3);
    border-radius: var(--radius);
    overflow: hidden;
    background: rgba(255,140,0,0.03);
}

.tc-row {
    display: flex;
    align-items: center;
    padding: 6px 16px;
    gap: 12px;
}

.tc-destination {
    border-bottom: 1px solid rgba(255,140,0,0.15);
}

.tc-label {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-muted);
    letter-spacing: 2px;
    min-width: 120px;
}

.tc-display {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--accent-orange);
    font-weight: 700;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--glow-orange);
}

.tc-now {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px var(--glow-cyan);
}

.hero-title {
    font-size: clamp(28px, 4vw, 52px);
    margin-bottom: 24px;
    text-transform: none;
}

.title-small {
    display: block;
    font-family: var(--font-body);
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: none;
}

.title-big {
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 540px;
    line-height: 1.8;
}

.hero-subtitle strong {
    color: var(--accent-orange);
    font-weight: 700;
}

.hero-subtitle em {
    color: var(--accent-cyan);
    font-style: normal;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 800;
    color: var(--accent-orange);
    text-shadow: 0 0 20px var(--glow-orange);
}

.stat-symbol {
    font-family: var(--font-display);
    font-size: 20px;
    color: var(--accent-amber);
}

.stat-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-top: 4px;
}

.stat-divider {
    opacity: 0.4;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
}

.delorean-frame {
    position: relative;
    width: 100%;
    max-width: 480px;
}

.delorean-frame canvas {
    border-radius: var(--radius-lg);
}

.speed-readout {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    font-family: var(--font-display);
    animation: speedPulse 2s ease-in-out infinite;
}

.speed-number {
    font-size: 36px;
    font-weight: 900;
    color: var(--accent-orange);
    text-shadow: 0 0 30px var(--glow-orange), 0 0 60px rgba(255,140,0,0.2);
    display: block;
}

.speed-unit {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 3px;
    display: block;
}

@keyframes speedPulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 2;
    transition: opacity var(--transition);
}

.scroll-indicator span {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent-orange), transparent);
    margin: 8px auto 0;
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* --- Section Common --- */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent-orange);
    letter-spacing: 3px;
    display: block;
    margin-bottom: 16px;
    text-shadow: 0 0 10px var(--glow-orange);
}

.section-title {
    font-size: clamp(28px, 3.5vw, 44px);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.8;
}

/* --- Animation States --- */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Quote Banner --- */
.quote-banner {
    padding: 3rem 1.5rem;
    background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(120, 80, 200, 0.06) 50%, var(--bg-primary) 100%);
    overflow: hidden;
}

.quote-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.quote-arrow {
    font-size: 2rem;
    color: var(--accent-orange);
    filter: drop-shadow(0 0 8px rgba(255, 140, 0, 0.6));
    animation: arrowPulse 2s ease-in-out infinite;
}

.quote-text {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(0.95rem, 4vw, 3rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
    background: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-amber) 40%, #ff6600 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 12px rgba(255, 140, 0, 0.4));
}

@keyframes arrowPulse {
    0%, 100% { opacity: 0.7; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(6px); }
}

/* --- Flux Capacitor Showcase --- */
.flux-showcase {
    padding: 4rem 0;
    background: radial-gradient(ellipse at 50% 50%, rgba(255,140,0,0.04) 0%, transparent 60%);
}

.flux-showcase-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.flux-diagram {
    flex: 0 0 340px;
    max-width: 340px;
}

.flux-diagram svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 4px 24px rgba(0,0,0,0.5));
}

.flux-node {
    animation: fluxNodePulse 3s ease-in-out infinite;
}
.flux-node-s { animation-delay: 0s; }
.flux-node-n { animation-delay: 1s; }
.flux-node-r { animation-delay: 2s; }
.flux-node-e { animation-delay: 0.5s; }

@keyframes fluxNodePulse {
    0%, 100% { filter: url(#sphereGlow); opacity: 1; }
    50% { filter: url(#sphereGlow) brightness(1.15); opacity: 0.92; }
}

.flux-info {
    flex: 1;
    min-width: 0;
}

.flux-info-title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: 0.04em;
}

.flux-info-desc {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.flux-info-desc strong {
    color: var(--accent-orange);
}

.flux-acronym {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
    border-left: 3px solid var(--accent-orange);
    background: rgba(255,140,0,0.04);
    border-radius: 0 6px 6px 0;
}

.flux-acronym-label {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent-orange);
    margin-bottom: 0.35rem;
}

.flux-acronym-full {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.acr-s { color: #00bfff; font-weight: 600; text-shadow: 0 0 8px rgba(0,191,255,0.5); }
.acr-e { color: #ffff00; font-weight: 600; text-shadow: 0 0 8px rgba(255,255,0,0.5); }
.acr-r { color: #39ff14; font-weight: 600; text-shadow: 0 0 8px rgba(57,255,20,0.5); }
.acr-n { color: #ff3131; font-weight: 600; text-shadow: 0 0 8px rgba(255,49,49,0.5); }

@media (max-width: 768px) {
    .flux-showcase-inner {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    .flux-diagram {
        flex: 0 0 260px;
        max-width: 260px;
    }
}

/* --- About Section --- */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.1);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
}

.about-card:hover {
    border-color: rgba(255,140,0,0.3);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3), 0 0 30px rgba(255,140,0,0.05);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-orange), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}

.about-card:hover .card-glow { opacity: 1; }

.about-card-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 20px;
    color: var(--accent-orange);
}

.about-card-icon svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 8px var(--glow-orange));
}

.about-card h3 {
    font-size: 16px;
    margin-bottom: 12px;
    font-family: var(--font-display);
    letter-spacing: 1px;
}

.about-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* About Quote */
.about-quote {
    text-align: center;
    padding: 40px;
    border: 1px solid rgba(255,140,0,0.15);
    border-radius: var(--radius-lg);
    background: rgba(255,140,0,0.02);
    position: relative;
}

.quote-lightning {
    font-size: 40px;
    color: var(--accent-orange);
    text-shadow: 0 0 20px var(--glow-orange);
    margin-bottom: 16px;
}

.about-quote blockquote {
    font-size: 20px;
    font-style: italic;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-weight: 500;
    margin-bottom: 12px;
}

.quote-note {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.quote-note strong {
    color: var(--accent-orange);
}

/* --- Technology Section --- */
.tech-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.tech-step {
    display: flex;
    gap: 32px;
    margin-bottom: 60px;
}

.tech-step:last-child { margin-bottom: 0; }

.step-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    width: 48px;
}

.step-num {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 800;
    color: var(--accent-orange);
    background: rgba(255,140,0,0.1);
    border: 1px solid rgba(255,140,0,0.3);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-shadow: 0 0 10px var(--glow-orange);
    flex-shrink: 0;
}

.step-line {
    width: 2px;
    flex: 1;
    background: linear-gradient(to bottom, rgba(255,140,0,0.3), transparent);
    margin-top: 12px;
}

.step-card {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.step-card:hover {
    border-color: rgba(255,140,0,0.25);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2), 0 0 20px rgba(255,140,0,0.03);
}

.step-content {
    padding: 28px;
}

.step-content h3 {
    font-size: 18px;
    margin-bottom: 12px;
    font-family: var(--font-display);
    letter-spacing: 1px;
}

.step-content p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.step-visual {
    padding: 0 28px 28px;
}

.step-visual svg {
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    background: rgba(0,0,0,0.3);
}

/* --- Advantages Section --- */
.advantages {
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.advantage-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.08);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
    position: relative;
}

.advantage-card:hover {
    border-color: rgba(255,140,0,0.25);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.advantage-card.highlight-card {
    border-color: rgba(255,140,0,0.3);
    background: linear-gradient(135deg, rgba(255,140,0,0.05), rgba(255,51,102,0.03));
}

.adv-number {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-orange);
    opacity: 0.4;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.advantage-card h3 {
    font-size: 15px;
    margin-bottom: 10px;
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}

.advantage-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* --- Applications Section --- */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.app-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.08);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition);
}

.app-card:hover {
    border-color: rgba(255,140,0,0.25);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3), 0 0 40px rgba(255,140,0,0.03);
}

.app-icon {
    font-size: 40px;
    margin-bottom: 16px;
    filter: grayscale(100%) brightness(0.6);
    transition: filter var(--transition);
}

.app-card:hover .app-icon {
    filter: none;
}

.app-card h3 {
    font-size: 15px;
    margin-bottom: 10px;
    font-family: var(--font-display);
    letter-spacing: 0.5px;
}

.app-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* --- Performance Section --- */
.performance {
    background: var(--bg-secondary);
}

.perf-dashboard {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.perf-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.08);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
}

.perf-card:hover {
    border-color: rgba(255,140,0,0.2);
}

.perf-card.perf-highlight {
    border-color: rgba(255,140,0,0.3);
    background: linear-gradient(135deg, rgba(255,140,0,0.06), var(--bg-card));
}

.perf-card-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.perf-card-value {
    margin-bottom: 8px;
}

.perf-number {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 800;
    color: var(--accent-orange);
    text-shadow: 0 0 15px var(--glow-orange);
}

.perf-unit {
    font-family: var(--font-display);
    font-size: 16px;
    color: var(--accent-amber);
    margin-left: 4px;
}

.perf-card-note {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.perf-bar {
    height: 4px;
    background: rgba(255,140,0,0.1);
    border-radius: 2px;
    overflow: hidden;
}

.perf-bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--accent-orange), var(--accent-amber));
    border-radius: 2px;
    transition: width 1.5s ease;
    box-shadow: 0 0 10px var(--glow-orange);
}

.approaching-unity span {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-cyan);
    letter-spacing: 1px;
    text-shadow: 0 0 15px var(--glow-cyan);
}

.perf-chart-container {
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.perf-chart-container h3 {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--accent-orange);
    letter-spacing: 2px;
    margin-bottom: 20px;
    text-shadow: 0 0 10px var(--glow-orange);
}

.perf-chart-container canvas {
    width: 100%;
    height: 500px;
    max-height: 60vh;
}

.chart-caption {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 16px;
    text-align: center;
}

/* --- Patent Section --- */
.patent-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.patent-info p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.patent-claims {
    list-style: none;
    padding: 0;
    margin-bottom: 32px;
}

.patent-claims li {
    padding: 10px 0 10px 24px;
    position: relative;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255,140,0,0.06);
}

.patent-claims li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent-orange);
    font-family: var(--font-mono);
    font-weight: 700;
    text-shadow: 0 0 8px var(--glow-orange);
}

.patent-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.patent-meta-item {
    background: rgba(255,140,0,0.04);
    border: 1px solid rgba(255,140,0,0.1);
    border-radius: var(--radius);
    padding: 12px 20px;
}

.meta-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.meta-value {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
}

.patent-figure {
    border: 1px solid rgba(255,140,0,0.15);
    border-radius: var(--radius-lg);
    background: rgba(0,0,0,0.4);
    overflow: hidden;
}

.patent-drawing {
    width: 100%;
    height: auto;
}

/* --- Video Section --- */
.video-section {
    background: var(--bg-secondary);
}

.video-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.video-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.video-card:hover {
    border-color: rgba(255,140,0,0.25);
}

.video-card.video-main {
    grid-column: 1 / -1;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-card h3 {
    font-family: var(--font-display);
    font-size: 14px;
    padding: 16px 20px;
    letter-spacing: 1px;
}

/* --- CTA Section --- */
.cta-section {
    text-align: center;
    background:
        radial-gradient(ellipse at center, rgba(255,140,0,0.06) 0%, transparent 60%);
}

.cta-content h2 {
    font-size: clamp(28px, 3.5vw, 44px);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.8;
}

/* --- Contact Section --- */
.contact {
    background: var(--bg-secondary);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 24px;
}

.contact-item {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,140,0,0.06);
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 4px;
}

.contact-value {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
}

a.contact-value:hover {
    color: var(--accent-orange);
    text-shadow: 0 0 10px var(--glow-orange);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    border: 1px solid rgba(255,140,0,0.15);
    padding: 8px 16px;
    border-radius: var(--radius);
    transition: all var(--transition);
    letter-spacing: 2px;
}

.social-link:hover {
    color: var(--accent-orange);
    border-color: var(--accent-orange);
    box-shadow: 0 0 15px var(--glow-orange);
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid rgba(255,140,0,0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0,0,0,0.4);
    border: 1px solid rgba(255,140,0,0.15);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-orange);
    box-shadow: 0 0 15px rgba(255,140,0,0.1);
}

.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 12 12'%3E%3Cpath d='M6 8L1 3h10L6 8z' fill='%23ff8c00'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* --- Footer --- */
.footer {
    border-top: 1px solid rgba(255,140,0,0.1);
    padding: 48px 0 24px;
    background: radial-gradient(ellipse at 50% 0%, rgba(90,50,180,0.08) 0%, transparent 60%), var(--bg-primary);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand p {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-muted);
    max-width: 300px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col h4 {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent-orange);
    letter-spacing: 2px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 8px;
}

.footer-col a {
    font-size: 14px;
    color: var(--text-muted);
    transition: color var(--transition);
}

.footer-col a:hover {
    color: var(--accent-orange);
}

.footer-bottom {
    border-top: 1px solid rgba(255,140,0,0.08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
}

.footer-tagline {
    font-style: italic;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero-content { order: 1; }
    .hero-visual { order: 0; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .about-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .perf-dashboard { grid-template-columns: repeat(2, 1fr); }
    .patent-layout { grid-template-columns: 1fr; }
    .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(10,10,15,0.98);
        flex-direction: column;
        padding: 24px;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
        z-index: 999;
    }
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .nav-links li { width: 100%; }
    .nav-links a {
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid rgba(255,140,0,0.06);
    }
    .about-grid { grid-template-columns: 1fr; }
    .advantages-grid { grid-template-columns: 1fr; }
    .apps-grid { grid-template-columns: 1fr; }
    .perf-dashboard { grid-template-columns: 1fr; }
    .video-grid { grid-template-columns: 1fr; }
    .tech-step { flex-direction: column; gap: 16px; }
    .step-marker { flex-direction: row; width: auto; }
    .step-line { width: auto; height: 2px; flex: 1; margin-top: 0; margin-left: 12px; }
    .footer-top { flex-direction: column; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 28px; }
    .stat-number { font-size: 24px; }
    .hero-stats { gap: 16px; }
    .perf-number { font-size: 28px; }
    .section { padding: 60px 0; }
}
