/* Black Venture Systems — shared design system
   Signal room aesthetic: graphite + amber ticker + teal signal line */

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 600;
    font-display: swap;
    src: url('../fonts/inter-latin-var.woff2') format('woff2');
}

@font-face {
    font-family: 'Space Grotesk';
    font-style: normal;
    font-weight: 500 700;
    font-display: swap;
    src: url('../fonts/space-grotesk-latin-var.woff2') format('woff2');
}

@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 400 600;
    font-display: swap;
    src: url('../fonts/jetbrains-mono-latin-var.woff2') format('woff2');
}

:root {
    --bg: #0a0c0f;
    --bg-alt: #0e1116;
    --panel: #12161c;
    --panel-2: #171c23;
    --line: #232a33;
    --line-soft: #1a1f26;
    --text: #eef1f4;
    --text-dim: #97a1af;
    --text-faint: #5b6472;
    --signal: #e8a94c;
    --signal-soft: #f4c581;
    --teal: #35c9a3;
    --danger: #e0645f;

    --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    --container: 1180px;
    --radius: 10px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(var(--line-soft) 1px, transparent 1px),
        linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 0%, transparent 70%);
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 0%, transparent 70%);
    opacity: 0.5;
}

a { color: inherit; }

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

.wrap {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(20px, 5vw, 40px);
    position: relative;
    z-index: 1;
}

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

h2 { font-size: clamp(1.9rem, 1.4rem + 2vw, 2.75rem); }
h3 { font-size: 1.25rem; }

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--signal);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.eyebrow::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--signal);
    box-shadow: 0 0 0 3px rgba(232, 169, 76, 0.18);
}

p { color: var(--text-dim); }

.lede { font-size: 1.15rem; max-width: 46ch; }

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 12, 15, 0.82);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line-soft);
}

header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 18px;
    padding-bottom: 18px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    text-decoration: none;
    color: var(--text);
}

.logo .mark {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

nav a {
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.92rem;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover { color: var(--signal-soft); }

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--signal);
    color: #14100a;
    font-weight: 600;
    font-size: 0.88rem;
    padding: 9px 18px;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover { background: var(--signal-soft); transform: translateY(-1px); }

@media (max-width: 860px) {
    nav ul { display: none; }
}

@media (max-width: 480px) {
    .nav-cta {
        font-size: 0.78rem;
        padding: 8px 14px;
        white-space: nowrap;
    }
    .logo { font-size: 0.92rem; }
}

/* Ticker */
.ticker {
    border-bottom: 1px solid var(--line-soft);
    background: var(--bg-alt);
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    z-index: 1;
}

.ticker-track {
    display: inline-flex;
    gap: 48px;
    padding: 11px 0;
    animation: scroll-left 38s linear infinite;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.03em;
}

.ticker-track span { color: var(--text-faint); }
.ticker-track .up { color: var(--teal); }
.ticker-track .live { color: var(--signal); }

@keyframes scroll-left {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
    .ticker-track { animation: none; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 26px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.2s, background 0.2s, border-color 0.2s;
}

.btn-primary {
    background: var(--signal);
    color: #14100a;
}
.btn-primary:hover { background: var(--signal-soft); transform: translateY(-2px); }

.btn-ghost {
    border: 1px solid var(--line);
    color: var(--text);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

/* Hero */
.hero {
    padding: clamp(64px, 10vw, 116px) 0 clamp(56px, 8vw, 96px);
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 1.8rem + 3vw, 4rem);
    margin: 18px 0 22px;
}

.hero h1 .accent { color: var(--signal); }

.hero-actions {
    display: flex;
    gap: 14px;
    margin-top: 34px;
    flex-wrap: wrap;
}

.hero-disclaimer {
    margin-top: 28px;
    font-size: 0.78rem;
    color: var(--text-faint);
    max-width: 46ch;
    border-left: 2px solid var(--line);
    padding-left: 12px;
}

@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
}

/* Chart visual */
.chart-card {
    background: linear-gradient(180deg, var(--panel), var(--bg-alt));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px 22px 6px;
    position: relative;
}

.chart-card .chart-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-faint);
    margin-bottom: 14px;
}

.chart-card .chart-head .val { color: var(--teal); font-size: 1rem; font-weight: 600; }

.chart-line {
    stroke: var(--teal);
    stroke-width: 2;
    fill: none;
    stroke-dasharray: 900;
    stroke-dashoffset: 900;
    animation: draw 2.2s ease-out forwards 0.3s;
}

.chart-area { opacity: 0.9; }

@keyframes draw {
    to { stroke-dashoffset: 0; }
}

.chart-dot {
    fill: var(--signal);
    animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

@media (prefers-reduced-motion: reduce) {
    .chart-line { animation: none; stroke-dashoffset: 0; }
    .chart-dot { animation: none; }
}

/* Sections */
section { padding: clamp(56px, 8vw, 100px) 0; position: relative; }

.section-head {
    margin-bottom: 48px;
    max-width: 640px;
}

.section-head h2 { margin-top: 14px; }

.divider {
    border: none;
    border-top: 1px solid var(--line-soft);
}

/* Pillars */
.pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

.pillar {
    background: var(--panel);
    padding: 30px 26px;
}

.pillar .idx {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-faint);
}

.pillar h3 { margin: 14px 0 10px; }
.pillar p { font-size: 0.92rem; }

/* Process */
.process {
    display: flex;
    flex-direction: column;
}

.step {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 24px;
    padding: 26px 0;
    border-top: 1px solid var(--line-soft);
}

.step:last-child { border-bottom: 1px solid var(--line-soft); }

.step .num {
    font-family: var(--font-mono);
    color: var(--signal);
    font-size: 0.95rem;
    padding-top: 3px;
}

.step h3 { margin-bottom: 6px; }
.step p { max-width: 60ch; font-size: 0.94rem; }

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}

.fact-list {
    list-style: none;
    display: grid;
    gap: 16px;
}

.fact-list li {
    display: grid;
    gap: 6px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line-soft);
    font-size: 0.92rem;
}

.fact-list .k {
    font-family: var(--font-mono);
    color: var(--text-faint);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.fact-list .v { color: var(--text); }

@media (max-width: 860px) {
    .about-grid { grid-template-columns: 1fr; }
}

/* Contact */
.contact-card {
    background: linear-gradient(135deg, var(--panel-2), var(--panel));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: clamp(32px, 5vw, 56px);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.contact-links {
    display: grid;
    gap: 14px;
}

.contact-links a {
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    transition: border-color 0.2s, color 0.2s;
}

.contact-links a:hover { border-color: var(--signal); color: var(--signal-soft); }
.contact-links a span { color: var(--text-faint); }

@media (max-width: 860px) {
    .contact-card { grid-template-columns: 1fr; }
}

/* Footer */
footer {
    border-top: 1px solid var(--line-soft);
    padding: 40px 0;
    position: relative;
    z-index: 1;
}

.footer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
    font-size: 0.88rem;
}

.footer-links a { text-decoration: none; color: var(--text-dim); }
.footer-links a:hover { color: var(--signal-soft); }

.footer-fine {
    font-size: 0.8rem;
    color: var(--text-faint);
}

/* Legal pages */
.legal {
    padding: clamp(56px, 8vw, 96px) 0 100px;
}

.legal .wrap { max-width: 820px; }

.legal h1 { font-size: clamp(2rem, 1.6rem + 1.6vw, 2.75rem); margin: 16px 0 8px; }

.legal .updated {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-faint);
    margin-bottom: 40px;
}

.legal h2 {
    font-size: 1.3rem;
    margin: 44px 0 14px;
    color: var(--text);
}

.legal h2 .idx {
    font-family: var(--font-mono);
    color: var(--signal);
    margin-right: 10px;
}

.legal p, .legal li { color: var(--text-dim); font-size: 0.98rem; margin-bottom: 12px; }

.legal ul { padding-left: 22px; margin-bottom: 12px; }

.legal a { color: var(--teal); text-decoration: underline; text-decoration-color: rgba(53,201,163,0.35); }

.legal strong { color: var(--text); font-weight: 600; }

.legal .box {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px 26px;
    margin: 24px 0;
}