/* ════════════════════════════════════════════════════════════════════
   WHITEPAPER STYLES — Professional PDF-style HTML Document
   Imports core.css for design tokens, adds print-optimized layouts.
   ════════════════════════════════════════════════════════════════════ */
@import url('./core.css');

/* ── Print/PDF Configuration ────────────────────────────────────── */
@page {
    size: A4;
    margin: 2cm 2.5cm;
}

/* ── Root overrides for whitepaper ───────────────────────────────── */
:root {
    --wp-max-width: 820px;
    --wp-font-body: 'Rajdhani', 'Segoe UI', sans-serif;
    --wp-font-heading: 'Rajdhani', sans-serif;
    --wp-font-mono: 'Share Tech Mono', 'Courier New', monospace;
    --wp-line-height: 1.8;
    --wp-section-gap: 48px;
}

/* ── Body & base typography ─────────────────────────────────────── */
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--wp-font-body);
    font-size: 1rem;
    line-height: var(--wp-line-height);
    margin: 0; padding: 0;
    -webkit-font-smoothing: antialiased;
}

/* ── Sticky download bar ────────────────────────────────────────── */
.wp-toolbar {
    position: sticky; top: 0; z-index: 100;
    background: var(--bg-overlay);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--panel-border);
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px clamp(16px, 4vw, 40px);
}
.wp-toolbar .logo {
    display: flex; align-items: center; gap: 10px; cursor: pointer;
}
.wp-toolbar .logo i {
    font-size: 1.3rem; background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.wp-toolbar .logo span {
    font-family: var(--wp-font-heading); font-weight: 700;
    font-size: 0.9rem; color: var(--text-primary); letter-spacing: 1px;
}
.wp-toolbar-actions { display: flex; gap: 10px; align-items: center; }
.btn-download {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 18px; border-radius: var(--radius-sm);
    background: var(--accent); color: #000; font-family: var(--wp-font-mono);
    font-size: 0.78rem; font-weight: 700; letter-spacing: 1px;
    text-transform: uppercase; border: none; cursor: pointer;
    transition: all var(--duration-fast);
}
.btn-download:hover { box-shadow: 0 0 20px var(--accent-glow); transform: translateY(-1px); }
.btn-back {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 14px; border-radius: var(--radius-sm);
    background: transparent; border: 1px solid var(--panel-border);
    color: var(--text-secondary); font-family: var(--wp-font-mono);
    font-size: 0.75rem; cursor: pointer; transition: all var(--duration-fast);
}
.btn-back:hover { border-color: var(--accent); color: var(--accent); }

/* ── Paper container ────────────────────────────────────────────── */
.wp-paper {
    max-width: var(--wp-max-width);
    margin: 0 auto;
    padding: clamp(20px, 5vw, 60px) clamp(16px, 4vw, 40px);
}

/* ── Title page ─────────────────────────────────────────────────── */
.wp-title-page {
    min-height: 80vh; display: flex; flex-direction: column;
    justify-content: center; align-items: center; text-align: center;
    padding: 60px 20px; position: relative;
}
.wp-title-page::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% 40%,
        rgba(var(--accent-rgb), 0.06) 0%,
        transparent 60%);
    pointer-events: none;
}
.wp-logo-icon {
    font-size: 3.5rem; margin-bottom: 24px;
    background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.wp-title {
    font-family: var(--wp-font-heading); font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 2.6rem); color: var(--text-primary);
    line-height: 1.2; margin-bottom: 12px; max-width: 600px;
}
.wp-subtitle {
    font-family: var(--wp-font-body); font-weight: 400;
    font-size: clamp(0.9rem, 2vw, 1.05rem); color: var(--text-secondary);
    line-height: 1.6; max-width: 500px; margin-bottom: 32px;
}
.wp-meta {
    display: flex; flex-wrap: wrap; gap: 16px 32px;
    justify-content: center; align-items: center;
    font-family: var(--wp-font-mono); font-size: 0.72rem;
    color: var(--text-muted); letter-spacing: 1px;
}
.wp-meta span i { margin-right: 6px; color: var(--accent); }

/* ── Section dividers ───────────────────────────────────────────── */
.wp-section {
    margin-top: var(--wp-section-gap);
    padding-top: var(--wp-section-gap);
    border-top: 1px solid var(--panel-border);
}
.wp-section:first-of-type { border-top: none; margin-top: 0; padding-top: 0; }

.wp-section-number {
    display: inline-block; font-family: var(--wp-font-mono);
    font-size: 0.65rem; color: var(--accent); letter-spacing: 2px;
    text-transform: uppercase; margin-bottom: 8px;
}

/* ── Headings ───────────────────────────────────────────────────── */
.wp-paper h2 {
    font-family: var(--wp-font-heading); font-weight: 700;
    font-size: clamp(1.4rem, 3vw, 1.8rem); color: var(--text-primary);
    margin: 0 0 20px; line-height: 1.3;
}
.wp-paper h3 {
    font-family: var(--wp-font-heading); font-weight: 600;
    font-size: 1.15rem; color: var(--text-primary);
    margin: 32px 0 12px; line-height: 1.4;
}
.wp-paper h4 {
    font-family: var(--wp-font-heading); font-weight: 600;
    font-size: 0.95rem; color: var(--accent);
    margin: 24px 0 8px; line-height: 1.4;
}

/* ── Body text ──────────────────────────────────────────────────── */
.wp-paper p {
    margin: 0 0 16px; font-size: 0.92rem;
    color: var(--text-secondary); line-height: var(--wp-line-height);
}
.wp-paper ul, .wp-paper ol {
    padding-left: 24px; margin: 12px 0 20px;
}
.wp-paper li {
    font-size: 0.9rem; color: var(--text-secondary);
    margin-bottom: 8px; line-height: 1.7;
}
.wp-paper li strong { color: var(--text-primary); }
.wp-paper strong { color: var(--text-primary); }

/* ── Callout boxes ──────────────────────────────────────────────── */
.wp-callout {
    background: rgba(var(--accent-rgb), 0.04);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius-md);
    padding: 16px 20px; margin: 20px 0;
    font-size: 0.88rem; line-height: 1.7;
}
.wp-callout strong { color: var(--accent); }
.wp-callout.warning {
    background: rgba(var(--warning-rgb, 234, 179, 8), 0.05);
    border-color: rgba(234, 179, 8, 0.2);
    border-left-color: var(--gold);
}
.wp-callout.warning strong { color: var(--gold); }

/* ── Code / formulas ────────────────────────────────────────────── */
.wp-formula {
    background: var(--bg-secondary); border: 1px solid var(--panel-border);
    border-radius: var(--radius-md); padding: 16px 20px;
    font-family: var(--wp-font-mono); font-size: 0.82rem;
    color: var(--accent); margin: 16px 0;
    overflow-x: auto; white-space: pre-wrap; line-height: 1.8;
}
code {
    font-family: var(--wp-font-mono); font-size: 0.85em;
    background: rgba(var(--accent-rgb), 0.08); padding: 2px 6px;
    border-radius: 3px; color: var(--accent);
}

/* ── Tables ──────────────────────────────────────────────────────── */
.wp-table-wrap { overflow-x: auto; margin: 20px 0; }
.wp-table {
    width: 100%; border-collapse: collapse;
    font-family: var(--wp-font-mono); font-size: 0.8rem;
}
.wp-table th {
    background: rgba(var(--accent-rgb), 0.06);
    color: var(--accent); font-weight: 600; text-align: left;
    padding: 10px 14px; border-bottom: 2px solid rgba(var(--accent-rgb), 0.2);
    letter-spacing: 1px; text-transform: uppercase; font-size: 0.7rem;
}
.wp-table td {
    padding: 10px 14px; color: var(--text-secondary);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.wp-table tr:hover td { background: rgba(var(--accent-rgb), 0.03); }

/* ── Figures / graphs ───────────────────────────────────────────── */
.wp-figure {
    margin: 28px 0; text-align: center;
}
.wp-figure-caption {
    font-family: var(--wp-font-mono); font-size: 0.7rem;
    color: var(--text-muted); letter-spacing: 1px;
    margin-top: 10px; text-transform: uppercase;
}
.wp-chart-container {
    background: var(--bg-secondary); border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg); padding: 24px;
    position: relative; overflow: hidden;
}

/* ── Supply schedule chart (pure CSS bars) ───────────────────────── */
.supply-chart { display: flex; flex-direction: column; gap: 6px; }
.supply-bar-row {
    display: flex; align-items: center; gap: 12px;
    font-family: var(--wp-font-mono); font-size: 0.72rem;
}
.supply-bar-label { width: 80px; text-align: right; color: var(--text-muted); flex-shrink: 0; }
.supply-bar-track {
    flex: 1; height: 22px; background: rgba(var(--accent-rgb), 0.06);
    border-radius: 4px; overflow: hidden; position: relative;
}
.supply-bar-fill {
    height: 100%; border-radius: 4px;
    background: var(--accent-gradient);
    transition: width 1s var(--ease-out);
}
.supply-bar-value {
    width: 60px; text-align: left; color: var(--text-secondary);
    font-weight: 600; flex-shrink: 0;
}

/* ── Team / reference cards ─────────────────────────────────────── */
.wp-team-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px; margin: 20px 0;
}
.wp-team-card {
    background: var(--bg-secondary); border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg); padding: 20px; text-align: center;
    transition: all var(--duration-fast);
}
.wp-team-card:hover {
    border-color: rgba(var(--accent-rgb), 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.wp-team-avatar {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--accent-dim); display: flex;
    align-items: center; justify-content: center;
    margin: 0 auto 12px; font-size: 1.4rem; color: var(--accent);
}
.wp-team-name {
    font-family: var(--wp-font-heading); font-weight: 700;
    font-size: 0.95rem; color: var(--text-primary); margin-bottom: 2px;
}
.wp-team-name-native {
    font-size: 0.78rem; color: var(--text-muted); margin-bottom: 6px;
}
.wp-team-role {
    font-family: var(--wp-font-mono); font-size: 0.68rem;
    color: var(--accent); letter-spacing: 1px; text-transform: uppercase;
    margin-bottom: 8px;
}
.wp-team-desc {
    font-size: 0.8rem; color: var(--text-muted); line-height: 1.6;
}
.wp-team-link {
    display: inline-block; margin-top: 10px; padding: 4px 12px;
    font-family: var(--wp-font-mono); font-size: 0.68rem;
    color: var(--accent); border: 1px solid rgba(var(--accent-rgb), 0.2);
    border-radius: var(--radius-sm); text-decoration: none;
    transition: all var(--duration-fast);
}
.wp-team-link:hover { background: var(--accent-dim); border-color: var(--accent); }

/* ── Table of Contents ──────────────────────────────────────────── */
.wp-toc {
    background: var(--bg-secondary); border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg); padding: 28px 32px;
    margin: 32px 0;
}
.wp-toc h3 {
    font-family: var(--wp-font-mono); font-size: 0.72rem;
    color: var(--accent); letter-spacing: 2px; text-transform: uppercase;
    margin: 0 0 16px;
}
.wp-toc ol {
    list-style: none; counter-reset: toc-counter; padding: 0; margin: 0;
}
.wp-toc li {
    counter-increment: toc-counter; margin-bottom: 8px;
}
.wp-toc li::before {
    content: counter(toc-counter, decimal-leading-zero) '.';
    font-family: var(--wp-font-mono); font-size: 0.72rem;
    color: var(--accent); margin-right: 12px; font-weight: 700;
}
.wp-toc a {
    color: var(--text-secondary); font-size: 0.88rem;
    text-decoration: none; transition: color var(--duration-fast);
    font-weight: 500;
}
.wp-toc a:hover { color: var(--accent); }

/* ── Footnotes / references ─────────────────────────────────────── */
.wp-ref-list { margin: 20px 0; }
.wp-ref-item {
    display: flex; gap: 12px; padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    font-size: 0.82rem;
}
.wp-ref-num {
    font-family: var(--wp-font-mono); font-size: 0.72rem;
    color: var(--accent); font-weight: 700; flex-shrink: 0;
    min-width: 24px;
}
.wp-ref-text { color: var(--text-muted); line-height: 1.6; }

/* ── Footer ─────────────────────────────────────────────────────── */
.wp-footer {
    max-width: var(--wp-max-width); margin: 60px auto 0;
    padding: 20px clamp(16px, 4vw, 40px);
    border-top: 1px solid var(--panel-border);
    font-family: var(--wp-font-mono); font-size: 0.7rem;
    color: var(--text-muted); text-align: center;
    line-height: 1.8;
}

/* ── SVG chart styling ──────────────────────────────────────────── */
.wp-svg-chart {
    width: 100%; height: auto;
}
.wp-svg-chart .chart-grid { stroke: rgba(255,255,255,0.04); stroke-width: 1; }
.wp-svg-chart .chart-line { fill: none; stroke: var(--accent); stroke-width: 2; }
.wp-svg-chart .chart-area {
    fill: url(#accentGradient); opacity: 0.15;
}
.wp-svg-chart .chart-label {
    font-family: var(--wp-font-mono); font-size: 10px;
    fill: var(--text-muted);
}

/* ════════════════════════════════════════════════════════════════════
   PRINT STYLES
   ════════════════════════════════════════════════════════════════════ */
@media print {
    body { background: #fff; color: #111; }
    .wp-toolbar { display: none; }
    .wp-paper { max-width: 100%; padding: 0; }
    .wp-title-page { min-height: auto; padding: 40px 0; page-break-after: always; }
    .wp-section { page-break-inside: avoid; border-top-color: #ddd; }
    .wp-callout { background: #f7f7f7; border-color: #ddd; }
    .wp-formula { background: #f5f5f5; border-color: #ddd; color: #333; }
    .wp-table th { background: #f0f0f0; color: #333; border-bottom-color: #ccc; }
    .wp-table td { border-bottom-color: #eee; color: #333; }
    .wp-toc { background: #f9f9f9; border-color: #ddd; }
    code { background: #eee; color: #333; }
    a { color: inherit; text-decoration: none; }
    .wp-team-card { background: #f9f9f9; border-color: #ddd; }
    .wp-chart-container { background: #f9f9f9; border-color: #ddd; }
}

/* ════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════════════ */
@media (max-width: 600px) {
    .wp-title { font-size: 1.5rem; }
    .wp-meta { flex-direction: column; gap: 8px; }
    .wp-team-grid { grid-template-columns: 1fr; }
    .wp-toc { padding: 20px; }
    .supply-bar-label { width: 60px; font-size: 0.65rem; }
}