/* ═══════════════════════════════════════
   DimLab - Dark Tech Theme
   ═══════════════════════════════════════ */

:root {
    --bg: #0a0a0a;
    --bg-elevated: #111111;
    --bg-card: #161616;
    --bg-card-hover: #1a1a1a;
    --primary: #6366f1;
    --primary-light: #818cf8;
    --accent: #22d3ee;
    --accent-dim: rgba(34, 211, 238, 0.1);
    --text: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --gradient: linear-gradient(135deg, #6366f1, #22d3ee);
    --gradient-text: linear-gradient(135deg, #818cf8, #22d3ee);
    --glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

/* ═══ Navigation ═══ */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

#navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.logo-icon {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--accent);
    background: var(--accent-dim);
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid rgba(34, 211, 238, 0.2);
}

.logo-text {
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
    transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ═══ Hero Section ═══ */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

#hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to top, var(--bg), transparent);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-dim);
    border: 1px solid rgba(34, 211, 238, 0.15);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

#hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
}

.hero-cta {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 30px rgba(99, 102, 241, 0.5);
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-hover);
}

.btn-outline:hover {
    border-color: var(--primary-light);
    background: rgba(99, 102, 241, 0.05);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: fadeInUp 1s ease 1.5s both;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* ═══ Sections ═══ */
section {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.section-subtitle {
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ═══ About Section ═══ */
#about {
    background: var(--bg);
    position: relative;
}

#about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: var(--transition);
}

.about-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--glow);
}

.about-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: 12px;
    margin-bottom: 20px;
}

.about-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.about-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.about-mission {
    text-align: center;
}

.about-mission blockquote {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 400;
    color: var(--text-secondary);
    font-style: italic;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    position: relative;
    padding: 32px;
    border-left: 3px solid var(--primary);
    background: rgba(99, 102, 241, 0.03);
    border-radius: 0 var(--radius) var(--radius) 0;
}

/* ═══ Products Section ═══ */
#products {
    background: var(--bg-elevated);
}

.product-showcase {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.product-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-light);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 6px 14px;
    border-radius: 100px;
    z-index: 1;
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.product-info {
    padding: 48px;
}

.product-logo-text {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.product-icon {
    font-size: 1.8rem;
}

.product-info h3 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.product-tagline {
    color: var(--accent);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.product-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-features {
    list-style: none;
    margin-bottom: 32px;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.feature-icon {
    color: var(--accent);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}

.product-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Phone Mockup */
.product-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 48px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(34, 211, 238, 0.05));
}

.product-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.phone-mockup {
    width: 220px;
    height: 440px;
    background: #1a1a2e;
    border-radius: 32px;
    border: 3px solid #2a2a3e;
    overflow: hidden;
    position: relative;
    z-index: 1;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.phone-screen {
    width: 100%;
    height: 100%;
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.mockup-header {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    padding: 12px 0 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 12px;
}

.mockup-radar {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radar-ring {
    position: absolute;
    border: 1px solid rgba(34, 211, 238, 0.15);
    border-radius: 50%;
}

.radar-ring:nth-child(1) { width: 60%; height: 60%; }
.radar-ring:nth-child(2) { width: 80%; height: 80%; }
.radar-ring:nth-child(3) { width: 100%; height: 100%; }

.radar-sweep {
    position: absolute;
    width: 50%;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--accent));
    transform-origin: left center;
    animation: radarSweep 4s linear infinite;
    left: 50%;
    top: 50%;
}

@keyframes radarSweep {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.radar-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent);
    animation: radarBlink 3s infinite;
}

.radar-dot:nth-child(5) { animation-delay: 1s; }
.radar-dot:nth-child(6) { animation-delay: 2s; }

@keyframes radarBlink {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.mockup-info {
    text-align: center;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.mockup-freq {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.mockup-callsign {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-top: 4px;
}

/* Coming Soon */
.coming-soon {
    margin-top: 48px;
    text-align: center;
}

.coming-soon-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.coming-soon-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 32px;
}

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

.coming-soon-card {
    background: var(--bg-card);
    border: 1px dashed var(--border-hover);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: var(--transition);
}

.coming-soon-card:hover {
    border-color: var(--primary);
    border-style: solid;
}

.cs-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.cs-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-light);
    background: rgba(99, 102, 241, 0.1);
    padding: 3px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.coming-soon-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ═══ Technologies Section ═══ */
#tech {
    background: var(--bg);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.tech-category {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.tech-category h4 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 20px;
}

.tech-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.tech-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    transition: var(--transition);
}

.tech-item:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.03);
}

.tech-name {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.tech-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ═══ Contact Section ═══ */
#contact {
    background: var(--bg-elevated);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--border-hover);
}

.contact-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: 10px;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
}

.contact-card h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-card p, .contact-card a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-decoration: none;
}

.contact-card a:hover {
    color: var(--accent);
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ═══ Footer ═══ */
footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 12px;
}

.footer-links h4 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 4px 0;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--text);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
}

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

/* ═══ Accessibility ═══ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ═══ Responsive ═══ */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 0 24px;
        border-bottom: 1px solid transparent;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease, border-color 0.35s ease;
    }

    .nav-links.open {
        max-height: 300px;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border);
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .product-content {
        grid-template-columns: 1fr;
    }

    .product-visual {
        padding: 32px;
    }

    .coming-soon-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number, .stat-suffix {
        font-size: 1.6rem;
    }

    .product-info {
        padding: 32px;
    }

    .product-badge {
        position: relative;
        top: auto;
        right: auto;
        margin: 24px 0 0 32px;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .product-links {
        flex-direction: column;
    }
}