:root {
    --bg: #0e0e0e;
    --bg-raised: #171717;
    --bg-card: #1a1a1a;
    --text: #d8d4cf;
    --text-bright: #f0ece6;
    --text-dim: #908880;
    --accent: #c86018;
    --accent-dim: #a04810;
    --accent-hover: #d87020;
    --border: #282420;
    --font-body: 'Libre Baskerville', 'Georgia', serif;
    --font-sans: 'Source Sans 3', 'Source Sans Pro', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --max-width: 740px;
}

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

html { background: var(--bg); }

body {
    background: transparent;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.8;
}

/* Breathing gradient background */
body::before,
body::after {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: -1;
}

body::before {
    background:
        radial-gradient(ellipse 900px 500px at 15% 35%, rgba(200,96,24,0.08), transparent),
        radial-gradient(ellipse 500px 700px at 80% 70%, rgba(160,72,16,0.05), transparent);
    animation: glow-a 80s ease-in-out infinite alternate;
}

body::after {
    background:
        radial-gradient(ellipse 600px 400px at 60% 20%, rgba(200,96,24,0.06), transparent),
        radial-gradient(ellipse 400px 500px at 30% 80%, rgba(180,80,20,0.04), transparent);
    animation: glow-b 110s ease-in-out infinite alternate;
}

@keyframes glow-a {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.9; }
    33%  { transform: translate(50px, -30px) scale(1.08); opacity: 1; }
    66%  { transform: translate(-30px, 40px) scale(0.95); opacity: 0.75; }
    100% { transform: translate(20px, -15px) scale(1.03); opacity: 0.85; }
}

@keyframes glow-b {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.8; }
    50%  { transform: translate(-40px, 30px) scale(1.1); opacity: 1; }
    100% { transform: translate(30px, -20px) scale(0.92); opacity: 0.7; }
}

@media (prefers-reduced-motion: reduce) {
    body::before, body::after { animation: none; }
}

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

/* Layout */
.wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
header {
    border-bottom: 1px solid var(--border);
    padding: 1.2rem 0;
}

header .wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--accent);
}

nav a {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-left: 2rem;
    text-decoration: none;
    letter-spacing: 0.3px;
}

nav a:hover { color: var(--accent); text-decoration: none; }

/* Hero */
.hero {
    padding: 5rem 0 3.5rem;
    border-bottom: 1px solid var(--border);
}

.hero h1 {
    font-family: var(--font-body);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--text-bright);
    margin-bottom: 1.2rem;
    max-width: 600px;
}

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

.hero .sub {
    font-size: 1.05rem;
    color: var(--text-dim);
    max-width: 560px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-links a {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    display: inline-block;
    padding: 0.65rem 1.4rem;
    border: 1px solid var(--accent);
    color: var(--accent);
    margin-right: 0.8rem;
    margin-bottom: 0.5rem;
    transition: background 0.15s, color 0.15s;
}

.hero-links a:hover {
    background: var(--accent);
    color: var(--bg);
    text-decoration: none;
}

.hero-links a.primary {
    background: var(--accent);
    color: var(--bg);
}

.hero-links a.primary:hover {
    background: var(--accent-hover);
}

/* Sections */
section {
    padding: 3rem 0;
    border-bottom: 1px solid var(--border);
}

section h2 {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

section p {
    margin-bottom: 1rem;
    max-width: 640px;
}

/* Term cards */
.terms-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
    margin-top: 1.5rem;
}

.term {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.2rem 1.4rem;
}

.term h3 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    font-style: italic;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.term p {
    font-size: 0.92rem;
    color: var(--text-dim);
    margin-bottom: 0;
}

/* Argument preview cards */
.arg-preview {
    background: var(--bg-card);
    border-left: 2px solid var(--accent);
    padding: 1rem 1.4rem;
    margin-bottom: 1rem;
}

.arg-preview .claim {
    font-style: italic;
    color: var(--text-bright);
    margin-bottom: 0.4rem;
}

.arg-preview .label {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.3px;
}

/* MeV section */
.mev-steps {
    list-style: none;
    counter-reset: step;
    margin-top: 1.5rem;
}

.mev-steps li {
    counter-increment: step;
    padding: 0.8rem 0;
    padding-left: 2.5rem;
    position: relative;
    border-bottom: 1px solid var(--border);
}

.mev-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
}

.mev-steps li strong {
    color: var(--text-bright);
}

/* Download section */
.download-box {
    background: var(--bg-card);
    border: 1px solid var(--accent-dim);
    padding: 2rem;
    margin-top: 1.5rem;
    text-align: center;
}

.download-box a {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    display: inline-block;
    padding: 0.7rem 1.8rem;
    background: var(--accent);
    color: var(--bg);
    border: none;
    margin: 0.5rem;
    transition: background 0.15s;
}

.download-box a:hover {
    background: var(--accent-hover);
    text-decoration: none;
}

/* === Essay pages (shared) === */

.essay-header {
    padding: 4rem 0 2.5rem;
}

.essay-header h1 {
    font-family: var(--font-body);
    font-size: 1.9rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-bright);
    margin-bottom: 1rem;
}

.epigraph {
    font-style: italic;
    color: var(--text-dim);
    max-width: 600px;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--accent-dim);
}

.essay-body section {
    padding: 2.5rem 0;
    border-bottom: none;
}

.essay-body section + section::before {
    content: '* \2003 * \2003 *';
    display: block;
    text-align: center;
    color: var(--accent);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    opacity: 0.5;
    padding-bottom: 2rem;
    user-select: none;
}

.reference-body section + section::before {
    content: none;
}

.essay-body h2 {
    font-family: var(--font-body);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.essay-body h3 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    font-style: italic;
    color: var(--accent);
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

.essay-body p {
    margin-bottom: 1rem;
    max-width: 640px;
}

.essay-body ul, .essay-body ol {
    max-width: 640px;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.essay-body li {
    margin-bottom: 0.5rem;
}

.essay-body blockquote {
    border-left: 3px solid var(--accent);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    max-width: 600px;
    background: var(--bg-card);
    font-style: italic;
}

.essay-body strong {
    color: var(--text-bright);
}

.dinkus {
    text-align: center;
    padding: 1.5rem 0;
    user-select: none;
}

.dinkus::after {
    content: '* \2003 * \2003 *';
    color: var(--accent);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    opacity: 0.5;
}

.centered-statement {
    text-align: center;
    max-width: 640px;
    padding: 1rem 0;
    color: var(--text-bright);
    font-weight: 700;
}

.callout-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    padding: 1.5rem 1.8rem;
    margin: 1.5rem 0;
    max-width: 640px;
}

.callout-box ol {
    padding-left: 1.5rem;
}

.callout-box li {
    margin-bottom: 0.8rem;
}

.marker {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.5px;
    display: block;
    margin-top: 1.5rem;
    margin-bottom: 0.3rem;
}

.closing {
    text-align: center;
    font-weight: 700;
    color: var(--text-bright);
    max-width: 600px;
    margin: 2rem auto;
    line-height: 1.6;
}

.essay-nav {
    padding: 2.5rem 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.essay-nav a {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    display: inline-block;
    padding: 0.7rem 1.5rem;
    border: 1px solid var(--accent);
    color: var(--accent);
    transition: background 0.15s, color 0.15s;
}

.essay-nav a:hover {
    background: var(--accent);
    color: var(--bg);
    text-decoration: none;
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--text-dim);
}

footer a { color: var(--text-dim); }
footer a:hover { color: var(--accent); }

/* Tables (essay pages) */
.essay-body table {
    width: 100%;
    max-width: 640px;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.92rem;
}

.essay-body th,
.essay-body td {
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--border);
    text-align: left;
}

.essay-body th {
    background: var(--bg-card);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.3px;
}

.essay-body td {
    color: var(--text);
}

/* Hero split layout */
.hero-split {
    display: flex;
    gap: 2.5rem;
    align-items: flex-start;
}

.hero-split .hero-text {
    flex: 1;
    min-width: 0;
}

.hero-split .hero-text p {
    margin-bottom: 0.8rem;
    max-width: none;
}

/* Cover preview ("Look Inside") */
.cover-preview {
    display: inline-block;
    position: relative;
    line-height: 0;
    flex-shrink: 0;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    transition: box-shadow 0.2s, transform 0.2s;
}

.cover-preview:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
    transform: translateY(-2px);
    text-decoration: none;
}

.cover-preview img {
    display: block;
    width: 220px;
    height: auto;
}

.cover-preview .badge {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(14,14,14,0.88);
    backdrop-filter: blur(4px);
    padding: 0.5rem 0.8rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.4px;
    line-height: 1;
    text-align: center;
    transition: background 0.15s;
}

.cover-preview:hover .badge {
    background: rgba(200,96,24,0.92);
    color: #fff;
}

/* Responsive */
@media (max-width: 640px) {
    .hero h1 { font-size: 1.45rem; }
    .hero { padding: 3rem 0 2rem; }
    .hero-split { flex-direction: column; align-items: center; }
    .hero-split .hero-text { text-align: left; }
    .terms-grid { grid-template-columns: 1fr; }
    nav a { margin-left: 1rem; font-size: 0.7rem; }
    .logo { font-size: 0.75rem; }
    .cover-preview img { width: 180px; }
}