/* === Welcome — Hacker Punk Edition === */
:root {
    --warm: #f97316;
    --mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', monospace;
}

.nav-brand, .section-title, .stat-value {
    font-family: 'Space Grotesk', sans-serif;
}

body { overflow-x: hidden; }

/* --- Landing nav override (fixed instead of sticky) --- */
nav { position: fixed; left: 0; right: 0; background: rgba(9,9,11,0.8); }

/* --- Dot-grid background layer --- */
body::before {
    content: '';
    position: fixed; inset: 0; z-index: -2;
    background-image: radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

/* --- Scanline overlay --- */
body::after {
    content: '';
    position: fixed; inset: 0; z-index: -1;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,0,0,0.03) 2px,
        rgba(0,0,0,0.03) 4px
    );
    pointer-events: none;
}

/* --- Noise texture (pure CSS) --- */
.hero::after {
    content: '';
    position: absolute; inset: 0;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
}

/* --- Hero --- */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    text-align: center; padding: 120px 2rem 80px;
    position: relative; overflow: hidden;
}
section.hero { max-width: none; }
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 100% 80% at 50% 30%, rgba(239,68,68,0.07) 0%, transparent 60%),
                radial-gradient(ellipse 60% 50% at 70% 60%, rgba(249,115,22,0.04) 0%, transparent 60%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.4rem 1rem; border-radius: 100px;
    font-size: 0.8rem; font-weight: 500; color: var(--accent-bright);
    background: var(--accent-glow);
    border: 1px solid rgba(239,68,68,0.2);
    margin-bottom: 2rem;
}
.hero-badge .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent); animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.hero h1 {
    font-size: clamp(3rem, 7vw, 5.5rem); font-weight: 600;
    letter-spacing: -0.045em; line-height: 1.05;
    margin-bottom: 1.5rem;
}
.hero h1 .gradient {
    background: linear-gradient(135deg, var(--accent-bright) 0%, var(--warm) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 1.25rem; color: var(--text-secondary); line-height: 1.7;
    max-width: 580px; margin: 0 auto 1.5rem;
}

/* --- Hero terminal one-liner --- */
.hero-terminal {
    display: inline-block;
    font-family: var(--mono); font-size: 0.95rem;
    color: var(--terminal); background: rgba(0,0,0,0.4);
    padding: 0.6rem 1.5rem; border-radius: 6px;
    border: 1px solid rgba(0,255,65,0.15);
    margin-bottom: 2.5rem;
    letter-spacing: 0.02em;
}
.hero-terminal .prompt { color: var(--text-tertiary); }
.hero-terminal .cursor {
    display: inline-block; width: 8px; height: 1.1em;
    background: var(--terminal); vertical-align: text-bottom;
    margin-left: 2px;
    animation: blink 1s step-end infinite;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-cta { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.btn-large {
    padding: 0.85rem 2rem; border-radius: 6px; font-size: 1rem;
    font-weight: 600; text-decoration: none; transition: all 0.25s;
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn-fill { background: var(--text); color: var(--bg); }
.btn-fill:hover { transform: translateY(-1px); box-shadow: 0 8px 30px rgba(255,255,255,0.12); }
.btn-outline {
    background: transparent; color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-outline:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }

/* --- Sections --- */
section { padding: 100px 2rem; max-width: 1200px; margin: 0 auto; }
.section-label {
    font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 2px; color: var(--accent); margin-bottom: 1rem;
}
.section-title {
    font-size: 2.5rem; font-weight: 600; letter-spacing: -0.04em;
    margin-bottom: 1rem;
}
.section-sub {
    font-size: 1.1rem; color: var(--text-secondary); max-width: 600px;
    line-height: 1.7; margin-bottom: 4rem;
}

/* --- Steps --- */
.steps-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
    background: var(--terminal-border); border-radius: 8px; overflow: hidden;
}
.step {
    background: var(--bg); padding: 2.5rem 2rem; transition: all 0.3s;
    position: relative;
}
.step:hover { background: var(--bg-elevated); }
.step::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--terminal-border), transparent);
    opacity: 0; transition: opacity 0.3s;
}
.step:hover::before { opacity: 1; }
.step-number {
    font-size: 0.75rem; font-weight: 700; color: var(--terminal);
    margin-bottom: 1rem; font-family: var(--mono);
    font-variant-numeric: tabular-nums;
}
.step h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.75rem; }
.step p { font-size: 0.9rem; color: var(--text-tertiary); line-height: 1.6; }

/* --- Terminal demo block --- */
.terminal-block {
    max-width: 680px; margin: 3rem auto 0;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--terminal-border);
    border-radius: 8px; overflow: hidden;
    font-family: var(--mono); font-size: 0.85rem;
    line-height: 1.8;
}
.terminal-header {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.6rem 1rem;
    background: rgba(0,255,65,0.05);
    border-bottom: 1px solid var(--terminal-border);
}
.terminal-header-dot {
    width: 8px; height: 8px; border-radius: 50%;
}
.terminal-header-dot--g { background: var(--terminal); }
.terminal-header-dot--y { background: #fbbf24; }
.terminal-header-dot--r { background: #ef4444; }
.terminal-header-title {
    font-size: 0.72rem; color: var(--text-tertiary);
    letter-spacing: 0.5px;
}
.terminal-body {
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
}
.terminal-body .line { white-space: pre; }
.terminal-body .prompt { color: var(--terminal); }
.terminal-body .cmd { color: var(--text); }
.terminal-body .flag { color: var(--accent-bright); }
.terminal-body .output { color: var(--text-tertiary); }
.terminal-body .success { color: var(--terminal); }
.terminal-body .highlight { color: #fbbf24; }
.terminal-body .progress {
    color: var(--terminal);
    display: inline-block;
}
.terminal-body .dim { color: #52525b; }

/* --- Stats --- */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.stat {
    text-align: center; padding: 3rem 2rem;
    border: 1px solid var(--border); border-radius: 8px; transition: all 0.3s;
    position: relative; overflow: hidden;
}
.stat::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--terminal-border), transparent);
    opacity: 0; transition: opacity 0.3s;
}
.stat:hover::before { opacity: 1; }
.stat:hover { border-color: rgba(239,68,68,0.3); background: var(--accent-glow); }
.stat-value {
    font-size: 4.5rem; font-weight: 700; letter-spacing: -0.05em;
    line-height: 1; font-family: 'Space Grotesk', sans-serif;
}
.stat-highlight {
    background: linear-gradient(135deg, var(--accent-bright) 0%, var(--warm) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-white {
    background: linear-gradient(135deg, var(--text) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-unit {
    font-size: 1.5rem; font-weight: 500;
    margin-left: 0.15rem;
}
.stat-label { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.75rem; line-height: 1.5; font-family: var(--mono); }
.stat-context {
    display: inline-block; margin-top: 0.75rem; padding: 0.3rem 0.85rem;
    font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
    border-radius: 100px; background: rgba(52,211,153,0.1); color: #34d399;
    border: 1px solid rgba(52,211,153,0.2);
}

/* --- Capabilities --- */
.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.cap-card {
    padding: 2.5rem; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg); transition: all 0.3s;
    position: relative;
}
.cap-card::before {
    content: '';
    position: absolute; top: -1px; left: 20%; right: 20%; height: 1px;
    background: linear-gradient(90deg, transparent, var(--terminal-border), transparent);
    opacity: 0; transition: opacity 0.3s;
}
.cap-card:hover::before { opacity: 1; }
.cap-card:hover { border-color: rgba(239,68,68,0.25); background: var(--bg-elevated); }
.cap-icon { margin-bottom: 1.25rem; display: block; color: var(--text-secondary); }
.cap-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.75rem; }
.cap-card p { font-size: 0.9rem; color: var(--text-tertiary); line-height: 1.6; margin-bottom: 1.25rem; }
.cap-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cap-tag {
    font-size: 0.72rem; padding: 0.2rem 0.6rem; border-radius: 3px;
    background: rgba(255,255,255,0.05); color: var(--text-tertiary);
    font-family: var(--mono);
}
.cap-tag--accent { background: rgba(34,197,94,0.12); color: #4ade80; }

/* --- Neural network ASCII art --- */
.nn-ascii {
    max-width: 600px; margin: 3rem auto 0;
    font-family: var(--mono); font-size: 0.7rem;
    line-height: 1.4; color: var(--terminal);
    text-align: center; opacity: 0.6;
    white-space: pre;
    overflow-x: auto;
}

/* --- FAQ --- */
.faq-grid { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); overflow: hidden; }
.faq-question {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.5rem 0; cursor: pointer; gap: 1rem;
    font-size: 1.05rem; font-weight: 500; color: var(--text);
    background: none; border: none; width: 100%; text-align: left;
    font-family: 'Space Grotesk', sans-serif;
}
.faq-question:hover { color: var(--accent-bright); }
.faq-icon {
    width: 24px; height: 24px; flex-shrink: 0;
    color: var(--text-tertiary); transition: transform 0.3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner {
    padding: 0 0 1.5rem;
    color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7;
}

/* --- Architectures --- */
.arch-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.arch-chip {
    padding: 0.5rem 1.25rem; border-radius: 4px;
    font-family: var(--mono); font-size: 0.8rem;
    color: var(--text-secondary); background: var(--bg-elevated);
    border: 1px solid var(--border); transition: all 0.2s;
}
.arch-chip:hover { color: var(--text); border-color: var(--accent); }

/* --- Demo --- */
.demo-window {
    border: 1px solid var(--border); border-radius: 8px;
    overflow: hidden; background: var(--bg-elevated);
}
.demo-titlebar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--border);
}
.demo-dots { display: flex; gap: 6px; }
.demo-dot {
    width: 10px; height: 10px; border-radius: 50%;
}
.demo-dot--green { background: #34d399; }
.demo-dot--yellow { background: #fbbf24; }
.demo-dot--red { background: #ef4444; }
.demo-title {
    font-size: 0.8rem; color: var(--text-tertiary); font-weight: 500;
    font-family: var(--mono);
}
.demo-badge {
    font-size: 0.75rem; color: var(--text-tertiary);
    padding: 0.25rem 0.75rem; border-radius: 100px;
    background: var(--bg-subtle); border: 1px solid var(--border);
    font-family: var(--mono);
}
.demo-iframe {
    width: 100%; height: 450px; border: 0; background: #0a0a0a;
}

/* --- Use Cases --- */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
a.case-card { text-decoration: none; color: inherit; display: block; cursor: pointer; position: relative; z-index: 1; }
.case-card {
    padding: 2.5rem; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg); transition: all 0.3s;
}
.case-card:hover { border-color: rgba(255,255,255,0.12); transform: translateY(-2px); }
.case-icon { margin-bottom: 1.5rem; display: block; color: var(--text-secondary); }
.case-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.75rem; }
.case-card p { font-size: 0.9rem; color: var(--text-tertiary); line-height: 1.6; }

/* --- Product marks --- */
.product-mark {
    display: flex; align-items: center; justify-content: center; gap: 1.25rem;
    margin-bottom: 2.5rem;
}
.product-mark img {
    width: 48px; height: 48px;
}
.product-mark-label {
    font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem;
    font-weight: 600; letter-spacing: -0.03em; color: var(--text);
}
.product-mark-label span {
    display: block; font-size: 0.75rem; font-weight: 500;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--text-tertiary); margin-top: 0.15rem;
}

/* --- Flow diagram --- */
.flow-diagram {
    width: 100%; max-width: 800px; margin: 2.5rem auto 0;
    overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.flow-diagram img {
    width: 100%; min-width: 600px; height: auto;
}

/* --- CTA --- */
.cta-section {
    text-align: center; padding: 120px 2rem;
    position: relative; overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 80% 70% at 50% 50%, rgba(239,68,68,0.06) 0%, transparent 60%);
    pointer-events: none;
}
.cta-section h2 {
    font-size: 3rem; font-weight: 600; letter-spacing: -0.04em;
    margin-bottom: 1rem;
}
.cta-section p { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2.5rem; }

/* --- Glitch effect on hover for hero title --- */
.hero h1:hover .gradient {
    animation: glitch 0.3s ease;
}
@keyframes glitch {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 1px); }
    40% { transform: translate(2px, -1px); }
    60% { transform: translate(-1px, -1px); }
    80% { transform: translate(1px, 1px); }
    100% { transform: translate(0); }
}

/* --- Subscribe section punk style --- */
.subscribe-input {
    flex: 1; padding: 0.75rem 1rem; border-radius: 6px;
    border: 1px solid var(--border); background: rgba(0,0,0,0.4);
    color: var(--text); font-size: 0.95rem; outline: none;
    font-family: var(--mono);
    transition: border-color 0.2s;
}
.subscribe-input:focus {
    border-color: var(--terminal-border);
    box-shadow: 0 0 12px rgba(0,255,65,0.1);
}
.subscribe-input::placeholder { color: var(--text-tertiary); }

/* --- Responsive --- */
@media (max-width: 768px) {
    .steps-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: 1fr; gap: 1rem; }
    .product-mark img { width: 36px; height: 36px; }
    .product-mark-label { font-size: 1.25rem; }
    .flow-diagram img { min-width: 500px; }
    .cases-grid { grid-template-columns: 1fr; }
    .cap-grid { grid-template-columns: 1fr; }
    .hero { padding: 100px 1.25rem 60px; min-height: auto; }
    .hero h1 { font-size: 2.2rem; }
    .hero-sub { font-size: 1.05rem; margin-bottom: 1rem; }
    .hero-terminal { font-size: 0.78rem; padding: 0.5rem 1rem; }
    section { padding: 60px 1.25rem; }
    .section-title { font-size: 1.8rem; }
    .section-sub { font-size: 1rem; margin-bottom: 2.5rem; }
    .stat { padding: 2rem 1.25rem; }
    .stat-value { font-size: 3rem; }
    .stat-unit { font-size: 1.25rem; }
    .cta-section { padding: 80px 1.25rem; }
    .cta-section h2 { font-size: 2rem; }
    .case-card { padding: 1.75rem; }
    .cap-card { padding: 1.75rem; }
    .step { padding: 1.75rem 1.25rem; }
    .faq-question { font-size: 0.95rem; padding: 1.25rem 0; }
    .demo-iframe { height: 300px; }
    .demo-titlebar { padding: 0.75rem 1rem; flex-wrap: wrap; gap: 0.5rem; }
    .demo-badge { display: none; }
    .terminal-block { font-size: 0.75rem; }
    .terminal-body { padding: 1rem; }
    .nn-ascii { font-size: 0.55rem; }
}
@media (max-width: 480px) {
    .steps-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 1.8rem; }
    .hero-cta { flex-direction: column; align-items: center; }
    .btn-large { width: 100%; justify-content: center; }
    .arch-grid { gap: 0.4rem; }
    .arch-chip { font-size: 0.7rem; padding: 0.4rem 0.9rem; }
    .stat-value { font-size: 2.5rem; }
    .cta-section h2 { font-size: 1.6rem; }
    .section-title { font-size: 1.5rem; }
    section { padding: 40px 1rem; }
    .hero-terminal { font-size: 0.7rem; word-break: break-all; white-space: normal; }
    .terminal-block { font-size: 0.65rem; }
}