/* ============================================
   CSMS Documentation Site
   Style: Dark Arcane Codex — refined grimoire meets developer docs
   ============================================ */

:root {
  --bg:         #0d0d0f;
  --bg-card:    #131318;
  --bg-raised:  #1a1a22;
  --border:     #2a2a38;
  --border-lit: #3d3d55;
  --gold:       #c9a84c;
  --gold-dim:   #8a6e32;
  --gold-glow:  rgba(201, 168, 76, 0.15);
  --text:       #e8e4d8;
  --text-dim:   #8a8578;
  --text-muted: #555048;
  --accent:     #7b6cd4;
  --accent-dim: rgba(123, 108, 212, 0.2);
  --green:      #4caf7d;
  --red:        #c94c4c;
  --code-bg:    #0a0a0e;
  --radius:     6px;
  --radius-lg:  12px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Crimson Pro', Georgia, serif;
  font-size: 18px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Noise texture overlay */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4 {
  font-family: 'Cinzel', serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 900; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; }

em { color: var(--gold); font-style: italic; }
strong { color: var(--text); font-weight: 600; }

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

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 3px;
  color: var(--gold);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold-dim);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  overflow-x: auto;
  margin: 1rem 0;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.88rem;
  color: var(--text);
}

p { margin-bottom: 1rem; color: var(--text-dim); }
p:last-child { margin-bottom: 0; }

ul { padding-left: 1.5rem; }
li { color: var(--text-dim); margin-bottom: 0.4rem; }

/* ============ LAYOUT ============ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border);
}

.section-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  opacity: 0.8;
}

/* ============ NAV ============ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Cinzel', serif;
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-family: 'Crimson Pro', serif;
  font-size: 0.95rem;
  color: var(--text-dim);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  font-family: 'JetBrains Mono', monospace !important;
  font-size: 0.78rem !important;
  color: var(--gold) !important;
  border: 1px solid var(--gold-dim);
  padding: 6px 14px;
  border-radius: var(--radius);
  transition: all 0.2s !important;
}

.nav-cta:hover {
  background: var(--gold-glow);
  color: var(--gold) !important;
}

/* ============ HERO ============ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 6rem;
  max-width: 1100px;
  margin: 0 auto;
  gap: 4rem;
  position: relative;
  border-bottom: none;
}

.hero-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.rune {
  position: absolute;
  font-size: 8rem;
  color: var(--gold);
  opacity: 0.03;
  animation: float 8s ease-in-out infinite;
}

.rune-1 { top: 10%; left: 5%; font-size: 12rem; animation-delay: 0s; }
.rune-2 { top: 60%; left: 80%; font-size: 10rem; animation-delay: 2s; }
.rune-3 { top: 80%; left: 20%; animation-delay: 4s; }
.rune-4 { top: 20%; left: 70%; font-size: 6rem; animation-delay: 1s; }
.rune-5 { top: 45%; left: 45%; font-size: 15rem; animation-delay: 3s; opacity: 0.015; }

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-content { flex: 1; animation: fadeUp 0.8s ease both; }
.hero-card-preview { flex: 0 0 auto; animation: fadeUp 0.8s ease 0.3s both; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

.hero h1 {
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.hero-version {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  letter-spacing: 0.05em;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============ BUTTONS ============ */
.btn-primary {
  display: inline-block;
  background: var(--gold);
  color: var(--bg) !important;
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 14px 28px;
  border-radius: var(--radius);
  transition: all 0.2s;
  text-transform: uppercase;
}

.btn-primary:hover {
  background: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 168, 76, 0.3);
}

.btn-secondary {
  display: inline-block;
  border: 1px solid var(--border-lit);
  color: var(--text-dim) !important;
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 14px 28px;
  border-radius: var(--radius);
  transition: all 0.2s;
  text-transform: uppercase;
}

.btn-secondary:hover {
  border-color: var(--gold-dim);
  color: var(--gold) !important;
  transform: translateY(-2px);
}

/* ============ CARD MOCK ============ */
.card-mock {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 2px solid var(--gold-dim);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  width: 320px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px var(--gold-glow);
  animation: cardPulse 4s ease-in-out infinite;
}

@keyframes cardPulse {
  0%, 100% { box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px var(--gold-glow); }
  50% { box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 60px rgba(201,168,76,0.25); }
}

.card-mock-title {
  color: var(--gold);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.card-mock-line {
  color: var(--text-dim);
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

.card-mock-blank { height: 0.8rem; }

/* ============ PHILOSOPHY ============ */
.philosophy { background: var(--bg); }
.philosophy h2 { margin-bottom: 1.5rem; }
.philosophy > .container > p { max-width: 600px; font-size: 1.1rem; }

.compare-grid {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.compare-col {
  flex: 1;
  padding: 2rem;
}

.compare-bad { background: var(--bg-card); }
.compare-good { background: var(--bg-raised); }

.compare-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: var(--bg);
  font-family: 'Cinzel', serif;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  writing-mode: vertical-lr;
  letter-spacing: 0.2em;
}

.compare-label {
  font-family: 'Cinzel', serif;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.compare-bad .compare-label { color: var(--text-muted); }
.compare-good .compare-label { color: var(--gold); }

.compare-bad li { color: var(--text-muted); }
.compare-good li { color: var(--text-dim); }
.compare-good li::marker { color: var(--gold); }

/* ============ FEATURES ============ */
.features { background: var(--bg-card); }
.features h2 { margin-bottom: 3rem; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--gold-dim);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 20px var(--gold-glow);
}

.feature-icon { font-size: 1.8rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: 0.75rem; font-size: 1rem; color: var(--gold); }
.feature-card p { font-size: 0.95rem; margin: 0; }

/* ============ QUICKSTART ============ */
.quickstart h2 { margin-bottom: 3rem; }

.steps { display: flex; flex-direction: column; gap: 0; }

.step {
  display: flex;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  animation: fadeUp 0.5s ease both;
}

.step:last-child { border-bottom: none; }

.step-num {
  font-family: 'Cinzel', serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--gold);
  opacity: 0.3;
  flex: 0 0 60px;
  line-height: 1;
  padding-top: 4px;
}

.step-content h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.step-content p { margin-bottom: 0.75rem; }

.quickstart-cta {
  display: flex;
  gap: 1rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

/* ============ COMPATIBILITY ============ */
.compatibility { background: var(--bg-card); }
.compatibility h2 { margin-bottom: 1rem; }
.compatibility > .container > p { margin-bottom: 2.5rem; }

.compat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.compat-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.compat-item strong {
  display: block;
  font-family: 'Cinzel', serif;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.compat-status {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 0.75rem;
}

.compat-status.good {
  background: rgba(76, 175, 125, 0.15);
  color: var(--green);
  border: 1px solid rgba(76, 175, 125, 0.3);
}

.compat-item p { font-size: 0.9rem; margin: 0; }

/* ============ FOOTER ============ */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 4rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: 'Cinzel', serif;
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.footer-left p { font-size: 0.9rem; color: var(--text-muted); }
.footer-quote { font-style: italic; margin-top: 1rem !important; color: var(--text-muted) !important; }

.footer-links { display: flex; gap: 3rem; }

.footer-col { display: flex; flex-direction: column; gap: 0.5rem; }

.footer-col-title {
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.footer-col a { font-size: 0.9rem; color: var(--text-dim); }
.footer-col a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

/* ============ PAGE HEADERS ============ */
.page-header {
  padding: 8rem 0 4rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg) 100%);
}

.page-header .section-tag { margin-bottom: 1rem; }
.page-header h1 { margin-bottom: 1rem; }
.page-header p { font-size: 1.1rem; max-width: 600px; }

/* ============ CONTENT PAGES ============ */
.content-body {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.content-body h2 {
  font-size: 1.6rem;
  margin: 3rem 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--gold);
}

.content-body h2:first-child { margin-top: 0; }
.content-body h3 { margin: 2rem 0 0.75rem; color: var(--text); }
.content-body p { font-size: 1rem; }
.content-body ul { margin-bottom: 1rem; }

.tip-box {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold-dim);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.tip-box strong { color: var(--gold); }

.warning-box {
  background: rgba(201, 76, 76, 0.08);
  border: 1px solid rgba(201, 76, 76, 0.2);
  border-left: 3px solid var(--red);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.warning-box strong { color: var(--red); }

/* ============ COMMANDS TABLE ============ */
.cmd-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.cmd-table th {
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.cmd-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text-dim);
}

.cmd-table tr:last-child td { border-bottom: none; }
.cmd-table tr:hover td { background: var(--bg-raised); }
.cmd-table td:first-child { color: var(--gold); font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; white-space: nowrap; }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .hero { flex-direction: column; padding-top: 6rem; min-height: auto; gap: 3rem; }
  .hero-card-preview { width: 100%; }
  .card-mock { width: 100%; }
  .compare-grid { flex-direction: column; }
  .compare-divider { writing-mode: horizontal-tb; padding: 0.5rem; }
  .nav-links { gap: 1rem; }
  .nav-links a:not(.nav-cta) { display: none; }
  .footer-inner { flex-direction: column; gap: 2rem; }
  .footer-links { flex-wrap: wrap; gap: 2rem; }
  section { padding: 4rem 0; }
}