/* ===== BLACKOPS MARKET v2 — Complete Redesign ===== */
/* Dark/Light theme via CSS custom properties */
/* Mobile-first responsive approach */

/* ----- CSS Custom Properties (Theme Variables) ----- */
:root {
    --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
    --radius: 10px;
    --radius-sm: 6px;
    --transition: 0.25s ease;
    --max-width: 1200px;
    --nav-height: 60px;
}

[data-theme="dark"] {
    --bg: #0a0a0a;
    --bg-alt: #111;
    --bg-card: rgba(255,255,255,0.03);
    --bg-card-hover: rgba(255,255,255,0.06);
    --bg-nav: rgba(10,10,10,0.92);
    --bg-code: #1a1a1a;
    --bg-input: rgba(255,255,255,0.05);
    --text: #e0e0e0;
    --text-dim: #777;
    --text-muted: #999;
    --text-bright: #fff;
    --text-link: #ff8c00;
    --text-link-hover: #ffa64d;
    --accent: #ff8c00;
    --accent-hover: #ffa33c;
    --accent-glow: rgba(255,140,0,0.35);
    --accent-dim: rgba(255,140,0,0.08);
    --accent-border: rgba(255,140,0,0.3);
    --glass-bg: rgba(255,255,255,0.03);
    --glass-border: rgba(255,140,0,0.12);
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --border-subtle: rgba(255,255,255,0.06);
    --warning-bg: rgba(255,140,0,0.08);
    --warning-border: rgba(255,140,0,0.3);
    --success: #00c853;
    --success-bg: rgba(0,200,83,0.12);
    --table-stripe: rgba(255,255,255,0.02);
    --scrollbar: #333;
    --scrollbar-track: #0a0a0a;
}

[data-theme="light"] {
    --bg: #f7f5f0;
    --bg-alt: #fff;
    --bg-card: rgba(255,255,255,0.7);
    --bg-card-hover: rgba(255,255,255,0.9);
    --bg-nav: rgba(247,245,240,0.92);
    --bg-code: #f0ede8;
    --bg-input: rgba(0,0,0,0.04);
    --text: #2d2a24;
    --text-dim: #888;
    --text-muted: #6b6b6b;
    --text-bright: #1a1a1a;
    --text-link: #c06900;
    --text-link-hover: #a35900;
    --accent: #c06900;
    --accent-hover: #a35900;
    --accent-glow: rgba(192,105,0,0.25);
    --accent-dim: rgba(192,105,0,0.06);
    --accent-border: rgba(192,105,0,0.25);
    --glass-bg: rgba(255,255,255,0.75);
    --glass-border: rgba(192,105,0,0.12);
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --border-subtle: rgba(0,0,0,0.08);
    --warning-bg: rgba(192,105,0,0.06);
    --warning-border: rgba(192,105,0,0.25);
    --success: #1b8a3d;
    --success-bg: rgba(27,138,61,0.1);
    --table-stripe: rgba(0,0,0,0.02);
    --scrollbar: #ccc;
    --scrollbar-track: #f7f5f0;
}

/* ----- Reset & Base ----- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(circle at 15% 40%, rgba(255,140,0,0.04) 0%, transparent 55%),
        radial-gradient(circle at 85% 70%, rgba(255,140,0,0.025) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
    transition: opacity var(--transition);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 4px; }

/* ----- Layout ----- */
.page-frame {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ----- Header ----- */
header {
    text-align: center;
    padding: 36px 0 18px;
    border-bottom: 2px solid var(--accent-border);
    margin-bottom: 0;
}

header a { text-decoration: none; }

.logo-text {
    font-size: clamp(28px, 5vw, 44px);
    font-weight: 900;
    letter-spacing: 3px;
    color: var(--accent);
    text-transform: uppercase;
    text-shadow: 0 0 30px var(--accent-glow);
    transition: color var(--transition), text-shadow var(--transition);
}

.logo-sub {
    font-size: 12px;
    color: var(--text-dim);
    letter-spacing: 4px;
    margin-top: 6px;
    text-transform: uppercase;
    transition: color var(--transition);
}

/* ----- Navigation ----- */
nav.nav-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 0 16px;
    height: var(--nav-height);
    background: var(--bg-nav);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--transition), border-color var(--transition);
}

nav.nav-bar a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
    white-space: nowrap;
}

nav.nav-bar a:hover {
    color: var(--accent);
    background: var(--accent-dim);
}

nav.nav-bar a.active {
    color: var(--accent);
    background: var(--accent-dim);
}

/* Theme toggle button in nav */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-subtle);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--text-muted);
    transition: all var(--transition);
    margin-left: auto;
    flex-shrink: 0;
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent-border);
    background: var(--accent-dim);
}

/* Mobile hamburger */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-muted);
    font-size: 22px;
    transition: color var(--transition);
}

.nav-toggle:hover { color: var(--accent); }

/* ----- Breadcrumbs ----- */
.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 13px;
    color: var(--text-dim);
    padding: 16px 0 8px;
    transition: color var(--transition);
}

.breadcrumbs a { color: var(--text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs .sep { color: var(--text-dim); }

/* ----- Typography ----- */
h1 {
    font-size: clamp(26px, 4vw, 40px);
    color: var(--text-bright);
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.25;
    transition: color var(--transition);
}

h1 span { color: var(--accent); }

h2 {
    font-size: clamp(22px, 3vw, 32px);
    color: var(--text-bright);
    margin: 40px 0 18px;
    font-weight: 700;
    line-height: 1.3;
    transition: color var(--transition);
}

h2:first-of-type { margin-top: 0; }

h2 span { color: var(--accent); }

h3 {
    font-size: clamp(18px, 2vw, 24px);
    color: var(--accent);
    margin: 28px 0 14px;
    font-weight: 700;
    line-height: 1.35;
    transition: color var(--transition);
}

h4 {
    font-size: 17px;
    color: var(--text-bright);
    margin: 20px 0 10px;
    font-weight: 600;
    transition: color var(--transition);
}

p { margin-bottom: 18px; color: var(--text); line-height: 1.8; }

a { color: var(--text-link); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--text-link-hover); text-decoration: underline; }

strong, b { color: var(--accent); font-weight: 700; }

ul, ol { margin: 0 0 22px 24px; }
li { margin-bottom: 8px; color: var(--text); line-height: 1.7; }

code {
    font-family: var(--font-mono);
    background: var(--bg-code);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--accent);
    transition: background var(--transition), color var(--transition);
}

pre {
    font-family: var(--font-mono);
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 16px;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-muted);
    margin-bottom: 18px;
    transition: background var(--transition), border-color var(--transition);
}

pre code { background: none; padding: 0; font-size: inherit; color: inherit; }

img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }

/* ----- Glass Card ----- */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.glass:hover {
    box-shadow: var(--shadow);
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 20px var(--accent-glow);
    text-decoration: none;
    color: #fff;
}

.btn-sm { padding: 7px 14px; font-size: 13px; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent-border);
    color: var(--accent);
}

.btn-outline:hover { background: var(--accent-dim); box-shadow: none; color: var(--accent); }

/* ----- Warning Box ----- */
.warning-box {
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    border-left: 4px solid var(--accent);
    padding: 20px 24px;
    margin: 28px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    transition: background var(--transition), border-color var(--transition);
}

.warning-box h3 { color: var(--accent); margin: 0 0 10px; font-size: 18px; }
.warning-box p { margin: 0; color: var(--text); }

/* ----- PGP Block ----- */
.pgp-block {
    background: var(--bg-alt);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin: 24px 0;
    transition: background var(--transition), border-color var(--transition);
}

.pgp-key {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    word-break: break-all;
    white-space: pre-wrap;
    line-height: 1.4;
}

/* ----- Grid Layouts ----- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ----- Stat Cards ----- */
.stat-item {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    transition: transform 0.3s, background var(--transition), border-color var(--transition);
}

.stat-item:hover { transform: translateY(-4px); background: var(--bg-card-hover); }

.stat-icon { font-size: 30px; margin-bottom: 10px; display: block; }
.stat-label { font-size: 11px; letter-spacing: 2px; color: var(--text-dim); margin-bottom: 8px; text-transform: uppercase; }
.stat-value { font-size: 16px; font-weight: 700; color: var(--accent); }

/* ----- Mirror Cards ----- */
.mirror-card {
    background: var(--bg-card);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius);
    padding: 22px;
    margin-bottom: 16px;
    transition: all var(--transition);
}

.mirror-card:hover { background: var(--bg-card-hover); }

.mirror-card h4 { font-size: 16px; color: var(--text-bright); margin: 0 0 6px; }

.mirror-card .addr {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    word-break: break-all;
    display: block;
    margin: 8px 0;
    background: var(--bg-alt);
    padding: 8px 10px;
    border-radius: 4px;
    border: 1px solid var(--border-subtle);
    transition: background var(--transition), border-color var(--transition);
}

.mirror-card .addr a { color: var(--accent); }

.mirror-card .desc { font-size: 14px; color: var(--text-muted); margin: 8px 0; }

.mirror-card .status {
    display: inline-block;
    font-size: 12px;
    padding: 3px 12px;
    border-radius: 12px;
    margin-bottom: 8px;
    font-weight: 600;
}

.mirror-card .status.online {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(0,200,83,0.3);
}

.mirror-card .actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

.copied-msg { color: var(--success); font-size: 13px; margin-left: 6px; display: none; font-weight: 600; }
.copied-msg.show { display: inline; }

/* ----- Step Blocks ----- */
.step-block {
    margin-bottom: 32px;
    padding: 0 0 0 22px;
    border-left: 3px solid var(--accent-border);
    transition: border-color var(--transition);
}

.step-block h3 { font-size: 20px; margin: 0 0 12px; }

/* ----- FAQ Items ----- */
.faq-item {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-subtle);
    transition: border-color var(--transition);
}

.faq-item:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }

.faq-item h3 {
    font-size: 19px;
    color: var(--accent);
    margin-bottom: 12px;
    cursor: pointer;
    transition: color var(--transition);
}

.faq-item p { margin-bottom: 0; }

/* ----- Section Label ----- */
.section-label {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 12px;
    font-weight: 700;
    text-transform: uppercase;
    transition: color var(--transition);
}

/* ----- Divider ----- */
.divider {
    text-align: center;
    margin: 48px 0;
    padding: 18px;
    border-top: 1px solid var(--accent-border);
    border-bottom: 1px solid var(--accent-border);
    transition: border-color var(--transition);
}

.divider-text { font-size: 12px; letter-spacing: 4px; color: var(--accent); font-weight: 700; }

/* ----- Checklist ----- */
.checklist { list-style: none; margin-left: 0; }
.checklist li { padding-left: 28px; position: relative; }
.checklist li::before {
    content: "☐";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}
.checklist li.done::before { content: "☑"; color: var(--success); }

/* ----- External References ----- */
.ext-refs { list-style: none; margin-left: 0; }
.ext-refs li {
    margin-bottom: 14px;
    padding: 8px 0 8px 16px;
    border-left: 2px solid var(--accent-border);
    transition: border-color var(--transition);
}
.ext-refs li a { font-weight: 600; }

/* ----- Tables ----- */
.info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
}

.info-table th, .info-table td {
    border: 1px solid var(--accent-border);
    padding: 12px 14px;
    text-align: left;
    color: var(--text);
    transition: border-color var(--transition), color var(--transition);
}

.info-table th {
    background: var(--accent-dim);
    color: var(--accent);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.5px;
}

.info-table tr:nth-child(even) { background: var(--table-stripe); }

/* ----- Content Cards (new) ----- */
.content-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    transition: all var(--transition);
}

.content-card:hover { background: var(--bg-card-hover); box-shadow: var(--shadow); }

.content-card h3 { margin-top: 0; }

/* ----- Tag / Badge ----- */
.tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 4px;
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid var(--accent-border);
    margin-bottom: 8px;
}

/* ----- Author/Date line ----- */
.meta-line {
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-subtle);
    transition: color var(--transition), border-color var(--transition);
}

/* ----- Footer ----- */
footer {
    text-align: center;
    padding: 48px 20px 32px;
    border-top: 2px solid var(--accent-border);
    margin-top: 60px;
    transition: border-color var(--transition);
}

footer p { color: var(--text-dim); font-size: 14px; margin-bottom: 6px; }
footer a { color: var(--text-muted); }
footer a:hover { color: var(--accent); }

.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 16px; }
.footer-links a { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }

/* ----- Skip to main content (accessibility) ----- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--accent);
    color: #fff;
    padding: 8px 16px;
    z-index: 1000;
    font-weight: 700;
    text-decoration: none;
}

.skip-link:focus { top: 0; }

/* ===== RESPONSIVE ===== */

/* Tablet & below */
@media (max-width: 1024px) {
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr 1fr; }
    .grid-4 { grid-template-columns: 1fr 1fr; }
    .page-frame { padding: 0 20px; }
}

@media (max-width: 768px) {
    .grid-3, .grid-4 { grid-template-columns: 1fr; }

    h1 { font-size: 26px; }
    h2 { font-size: 22px; }
    h3 { font-size: 18px; }

    .page-frame { padding: 0 16px; }

    /* Mobile nav */
    .nav-toggle { display: block; }

    nav.nav-bar {
        justify-content: flex-start;
        gap: 0;
        padding: 0 12px;
        height: 56px;
    }

    .nav-links {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--bg-nav);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-subtle);
        padding: 8px 16px 16px;
        display: none;
        flex-direction: column;
        gap: 4px;
        box-shadow: var(--shadow);
        z-index: 99;
    }

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

    nav.nav-bar a {
        padding: 10px 14px;
        font-size: 14px;
        border-radius: var(--radius-sm);
    }

    .theme-toggle {
        margin-left: auto;
        position: relative;
        z-index: 101;
    }

    .glass { padding: 20px; }

    .mirror-card .actions { flex-direction: column; }
    .mirror-card .actions .btn { width: 100%; justify-content: center; }

    .info-table { font-size: 13px; }
    .info-table th, .info-table td { padding: 8px 10px; }

    .breadcrumbs { font-size: 12px; }

    footer { padding: 32px 16px 24px; }
    .footer-links { gap: 6px 14px; }
    .footer-links a { font-size: 12px; }
}

@media (max-width: 480px) {
    .logo-text { font-size: 24px; letter-spacing: 2px; }
    .logo-sub { font-size: 10px; letter-spacing: 2px; }
    h1 { font-size: 22px; }
    .stat-item { padding: 18px 14px; }
    header { padding: 24px 0 14px; }
}

/* ----- Reduced Motion ----- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ----- Print ----- */
@media print {
    nav.nav-bar, .theme-toggle, .btn, .mirror-card .actions { display: none !important; }
    body::before { display: none; }
    body { background: #fff; color: #000; }
    .glass { border: 1px solid #ddd; background: #f9f9f9; box-shadow: none; }
    a { color: #000; text-decoration: underline; }
    .page-frame { max-width: 100%; padding: 0; }
    h1, h2, h3, strong { color: #000 !important; }
}