/* ============================================
   SHION INDUSTRIES — Common Document Stylesheet
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Space+Mono:ital,wght@0,400;0,700;1,400&display=swap');

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

:root {
    --bg: #020408;
    --bg-2: #060d16;
    --surface: rgba(255,255,255,0.03);
    --surface-2: rgba(255,255,255,0.05);
    --border: rgba(255,255,255,0.07);
    --border-accent: rgba(0,255,180,0.3);
    --neon: #00ffb4;
    --neon-dim: rgba(0,255,180,0.12);
    --neon-glow: rgba(0,255,180,0.25);
    --cyan: #00d4ff;
    --text: #edf2f7;
    --text-muted: #4a5568;
    --text-dim: #718096;
    --font: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: 'Space Mono', ui-monospace, monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.8;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ============================================
   BACKGROUND MESH
============================================ */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image:
        linear-gradient(rgba(0,255,180,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,180,0.025) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 100% 100% at 50% 0%, black 20%, transparent 80%);
    pointer-events: none;
}

/* ============================================
   LAYOUT WRAPPER
============================================ */
.doc-wrapper {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 1.5rem 5rem;
}

/* Wide variant for 2-column layout */
.doc-wrapper.wide {
    max-width: 1200px;
}

/* ============================================
   DOCUMENT HEADER
============================================ */
.doc-header {
    text-align: center;
    padding-bottom: 3rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border);
    position: relative;
}

.doc-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 1px;
    background: var(--neon);
    box-shadow: 0 0 10px var(--neon);
}

.doc-eyebrow {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--neon);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    opacity: 0.8;
}

h1 {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #a0aec0 50%, var(--neon) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.doc-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

/* ============================================
   DOCUMENT BODY
============================================ */

/* Back link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--mono);
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--neon);
}

/* Glass card container */
.container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 3rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 0 80px rgba(0,0,0,0.5);
}

/* Standard h1 inside container (doc title) */
.container > h1:first-child,
.doc-header h1 {
    margin-top: 0;
}

h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--text);
    padding-left: 0.75rem;
    border-left: 2px solid var(--neon);
    box-shadow: -4px 0 12px rgba(0,255,180,0.15);
    letter-spacing: -0.01em;
}

/* Article number style (for h2 inside columns) */
.document-h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.6rem;
    color: var(--text);
    padding-left: 0.75rem;
    border-left: 2px solid var(--neon);
    letter-spacing: -0.01em;
}

p {
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-bottom: 1.25rem;
    line-height: 1.85;
}

ul, ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}

li {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

a {
    color: var(--neon);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.75;
    text-decoration: underline;
}

code {
    font-family: var(--mono);
    font-size: 80%;
    background: rgba(0,255,180,0.08);
    border: 1px solid rgba(0,255,180,0.15);
    color: var(--neon);
    padding: 0.15em 0.5em;
    border-radius: 6px;
}

/* ============================================
   MULTI-COLUMN (GTcrx etc.)
============================================ */
.columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.column {
    display: flex;
    flex-direction: column;
}

.column-title {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-family: var(--mono);
    margin-bottom: 2rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

/* ============================================
   INFO CARD
============================================ */
.info-card {
    background: rgba(0,255,180,0.04);
    border: 1px solid rgba(0,255,180,0.15);
    border-radius: 14px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.info-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--neon);
    margin-bottom: 0.75rem;
    font-family: var(--mono);
    letter-spacing: 0.05em;
}

.info-card p {
    margin-bottom: 0.5rem;
    font-size: 0.88rem;
}

/* ============================================
   FOOTER
============================================ */
.footer {
    margin-top: 4rem;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer p {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.footer a {
    color: var(--text-muted);
    margin: 0 0.75rem;
    font-size: 0.78rem;
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--neon);
    text-decoration: none;
}

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 720px) {
    .doc-wrapper {
        padding: 2.5rem 1.25rem 4rem;
    }

    .container {
        padding: 1.75rem 1.25rem;
        border-radius: 18px;
    }

    .columns {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1rem;
        margin-top: 2rem;
    }
}

@media (max-width: 480px) {
    .doc-wrapper {
        padding: 2rem 1rem 3rem;
    }

    .container {
        padding: 1.5rem 1rem;
    }
}