/* ========================================
   Dragon Dev — Styles
   ======================================== */

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

:root {
    --bg: #0a0a0f;
    --bg-raised: #12121a;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --border: #1e1e2e;
    --border-light: #2a2a3d;
    --text: #e4e4ed;
    --text-muted: #8888a0;
    --text-dim: #5a5a72;
    --accent: #f97316;
    --accent-light: #fb923c;
    --accent-glow: rgba(249, 115, 22, 0.15);
    --red: #ef4444;
    --green: #22c55e;
    --yellow: #eab308;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-sm: 6px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --transition: 0.2s ease;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* ========================================
   Header
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent);
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.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
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    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;
    mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero-glow {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 100px;
    border: 1px solid var(--border-light);
    background: var(--bg-raised);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-gradient {
    background: linear-gradient(135deg, var(--accent), var(--red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 480px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
}

.stat-unit {
    font-size: 1.2rem;
    color: var(--accent);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font);
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--red));
    color: #fff;
    box-shadow: 0 4px 20px rgba(249, 115, 22, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 6px 28px rgba(249, 115, 22, 0.4);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-light);
}

.btn-ghost:hover {
    border-color: var(--text-dim);
    color: var(--text);
    background: var(--bg-raised);
}

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

/* ========================================
   Section common
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 12px;
    font-family: var(--mono);
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 16px;
}

.section-sub {
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ========================================
   Products
   ======================================== */

.products {
    padding: 120px 0;
    border-top: 1px solid var(--border);
}

.product-filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.825rem;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--border-light);
    color: var(--text);
}

.filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--red));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover {
    border-color: var(--border-light);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.product-card:hover::before {
    opacity: 1;
}

.product-card-link {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.product-view {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 16px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    transition: gap 0.2s;
}

.product-card-link:hover .product-view {
    gap: 8px;
}

.product-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: var(--bg-raised);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent);
    padding: 10px;
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.product-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 20px;
}

.product-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.product-tag {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 100px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}


/* ========================================
   Stack
   ======================================== */

.stack {
    padding: 120px 0;
    border-top: 1px solid var(--border);
}

.stack-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.stack-text .section-tag,
.stack-text .section-title {
    text-align: left;
}

.stack-text .section-sub {
    margin: 0;
    text-align: left;
}

.stack-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stack-item {
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--bg-card);
    transition: var(--transition);
}

.stack-item:hover {
    border-color: var(--border-light);
    background: var(--bg-card-hover);
}

.stack-icon {
    width: 40px;
    height: 40px;
    color: var(--accent);
    margin-bottom: 16px;
}

.stack-icon svg {
    width: 100%;
    height: 100%;
}

.stack-item h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.stack-item p {
    font-size: 0.825rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ========================================
   About
   ======================================== */

.about {
    padding: 120px 0;
    border-top: 1px solid var(--border);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text .section-tag,
.about-text .section-title {
    text-align: left;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.7;
}

.about-values {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.value {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.value-icon {
    color: var(--accent);
    font-size: 0.7rem;
    margin-top: 6px;
    flex-shrink: 0;
}

.value strong {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.value span {
    font-size: 0.825rem;
    color: var(--text-muted);
}

/* Terminal */

.terminal {
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.terminal-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: var(--red); }
.terminal-dot.yellow { background: var(--yellow); }
.terminal-dot.green { background: var(--green); }

.terminal-title {
    flex: 1;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: var(--mono);
    margin-right: 42px;
}

.terminal-body {
    padding: 20px;
    font-family: var(--mono);
    font-size: 0.8rem;
    line-height: 1.9;
    min-height: 280px;
}

.terminal-line {
    opacity: 0;
    animation: termFade 0.3s ease forwards;
}

.t-prompt {
    color: var(--accent);
    margin-right: 8px;
}

.t-cmd {
    color: var(--text);
}

.t-output {
    color: var(--text-muted);
}

.t-success {
    color: var(--green);
}

.t-accent {
    color: var(--accent);
}

@keyframes termFade {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   Contact
   ======================================== */

.contact {
    padding: 120px 0;
    border-top: 1px solid var(--border);
}

.contact-inner {
    max-width: 560px;
    margin: 0 auto;
}

.contact-form {
    margin-top: 48px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    display: block;
    font-size: 0.825rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    transition: var(--transition);
    outline: none;
}

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

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.cf-turnstile {
    margin-bottom: 20px;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    border-top: 1px solid var(--border);
    padding: 48px 0 32px;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-brand p {
    font-size: 0.825rem;
    color: var(--text-dim);
    margin-top: 6px;
}

.footer-links {
    display: flex;
    gap: 28px;
}

.footer-links a {
    font-size: 0.825rem;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* ========================================
   Animations
   ======================================== */

.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 64px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
        margin-bottom: 48px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-value {
        font-size: 1.5rem;
    }

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

    .product-filters {
        flex-wrap: wrap;
    }

    .stack-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .stack-text .section-tag,
    .stack-text .section-title,
    .stack-text .section-sub {
        text-align: center;
    }

    .stack-text .section-sub {
        margin: 0 auto;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-text .section-tag,
    .about-text .section-title {
        text-align: center;
    }

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

    .about-values {
        align-items: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .products,
    .stack,
    .about,
    .contact {
        padding: 80px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .section-title {
        font-size: 1.6rem;
    }
}