/* PermForge Documentation & Landing Stylesheet */
:root {
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-tertiary: #1e293b;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-color: rgba(148, 163, 184, 0.15);
  --border-glow: rgba(99, 102, 241, 0.35);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  --accent-cyan: #06b6d4;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --gradient-brand: linear-gradient(135deg, #06b6d4 0%, #6366f1 50%, #a855f7 100%);
  --gradient-text: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  --glow-shadow: 0 0 50px -10px rgba(99, 102, 241, 0.25);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Background Gradients & Grid */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(6, 182, 212, 0.08) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.ambient-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* Container */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Navigation Header */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(9, 13, 22, 0.85);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand img {
  width: 34px;
  height: 34px;
}

.brand .badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.4);
}

nav.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

nav.nav-links a:hover {
  color: #ffffff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-tertiary);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.btn-github:hover {
  background: #283548;
  border-color: rgba(148, 163, 184, 0.4);
  transform: translateY(-1px);
}

.btn-github svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--accent-cyan);
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.03em;
  max-width: 900px;
  margin: 0 auto 20px;
}

.hero h1 .gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p.lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  font-weight: 400;
}

/* Quick Action Box */
.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  margin-bottom: 48px;
}

.quick-install {
  display: inline-flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-glow);
  padding: 8px 16px 8px 20px;
  border-radius: var(--radius-full);
  box-shadow: var(--glow-shadow);
  gap: 12px;
}

.quick-install code {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #38bdf8;
}

.quick-install button.copy-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.quick-install button.copy-btn:hover {
  background: var(--accent-indigo);
  border-color: var(--accent-indigo);
}

.hero-buttons {
  display: flex;
  gap: 14px;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.6);
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.8);
  border-color: rgba(148, 163, 184, 0.4);
}

/* Stat Grid */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 40px auto 70px;
  max-width: 1040px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  transition: transform 0.2s, border-color 0.2s;
}

.stat-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: #ffffff;
  display: block;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Terminal Simulator */
.terminal-window {
  max-width: 980px;
  margin: 0 auto 90px;
  background: #080c14;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), var(--glow-shadow);
  overflow: hidden;
}

.terminal-header {
  background: #0f172a;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.dot-red { width: 12px; height: 12px; border-radius: 50%; background: #ef4444; }
.dot-yellow { width: 12px; height: 12px; border-radius: 50%; background: #f59e0b; }
.dot-green { width: 12px; height: 12px; border-radius: 50%; background: #10b981; }

.terminal-tabs {
  display: flex;
  gap: 4px;
}

.terminal-tab {
  background: transparent;
  border: none;
  color: var(--text-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.terminal-tab:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.terminal-tab.active {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  font-weight: 600;
}

.terminal-actions button {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
}

.terminal-actions button:hover {
  color: #ffffff;
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.55;
  color: #cbd5e1;
  text-align: left;
  min-height: 280px;
}

.term-pane {
  display: none;
}

.term-pane.active {
  display: block;
}

.term-prompt {
  color: #a855f7;
  font-weight: 700;
}

.term-cmd {
  color: #f8fafc;
  font-weight: 600;
}

.term-green { color: #10b981; }
.term-cyan { color: #38bdf8; }
.term-purple { color: #c084fc; }
.term-amber { color: #fbbf24; }
.term-rose { color: #fb7185; }
.term-dim { color: #64748b; }

/* Section Headers */
section {
  padding: 80px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}

.section-tag {
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--accent-indigo);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.5);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.5rem;
}

.icon-blue { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }
.icon-indigo { background: rgba(99, 102, 241, 0.15); color: var(--accent-indigo); border: 1px solid rgba(99, 102, 241, 0.3); }
.icon-purple { background: rgba(168, 85, 247, 0.15); color: var(--accent-purple); border: 1px solid rgba(168, 85, 247, 0.3); }
.icon-green { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); border: 1px solid rgba(16, 185, 129, 0.3); }
.icon-amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); border: 1px solid rgba(245, 158, 11, 0.3); }
.icon-rose { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); border: 1px solid rgba(244, 63, 94, 0.3); }

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #ffffff;
}

.feature-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.feature-badge {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.74rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
}

/* Architecture Flow */
.flow-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
  margin: 40px 0;
}

.flow-step {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
}

.step-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.step-cmd {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: #090d16;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  color: #38bdf8;
  display: block;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* CLI Commands Filter & List */
.cli-filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.search-box input {
  width: 100%;
  padding: 10px 16px 10px 38px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.2s;
}

.search-box input:focus {
  border-color: var(--accent-indigo);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  fill: var(--text-subtle);
}

.cli-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s;
}

.tag-btn:hover, .tag-btn.active {
  background: var(--accent-indigo);
  border-color: var(--accent-indigo);
  color: #ffffff;
}

.cli-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 20px;
}

.cli-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.2s;
}

.cli-card:hover {
  border-color: var(--border-glow);
}

.cli-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.cli-name {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: #38bdf8;
}

.cli-badge {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  color: #94a3b8;
}

.cli-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.cli-snippet {
  position: relative;
  background: #080c14;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cli-snippet button.copy-btn-sm {
  background: transparent;
  border: none;
  color: var(--text-subtle);
  cursor: pointer;
  padding: 2px 6px;
}

.cli-snippet button.copy-btn-sm:hover {
  color: #ffffff;
}

/* MCP Section */
.mcp-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: start;
}

.mcp-info h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.mcp-tools-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0;
}

.mcp-tool-pill {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-color);
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #38bdf8;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mcp-config-box {
  background: #080c14;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.mcp-tabs {
  background: var(--bg-secondary);
  display: flex;
  border-bottom: 1px solid var(--border-color);
}

.mcp-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 12px 18px;
  cursor: pointer;
  transition: all 0.2s;
}

.mcp-tab-btn:hover {
  color: #ffffff;
}

.mcp-tab-btn.active {
  color: var(--accent-cyan);
  border-bottom: 2px solid var(--accent-cyan);
  background: rgba(6, 182, 212, 0.05);
}

.mcp-code {
  padding: 20px;
  position: relative;
}

.mcp-code pre {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  color: #cbd5e1;
  overflow-x: auto;
}

.mcp-code .copy-btn {
  position: absolute;
  top: 14px;
  right: 14px;
}

/* Comparison Table */
.table-wrap {
  overflow-x: auto;
  margin: 30px 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
}

table.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

table.compare-table th {
  background: rgba(30, 41, 59, 0.7);
  padding: 16px 20px;
  color: #ffffff;
  font-weight: 700;
  border-bottom: 1px solid var(--border-color);
}

table.compare-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
}

table.compare-table tr:last-child td {
  border-bottom: none;
}

table.compare-table td.highlight {
  color: #ffffff;
  font-weight: 600;
  background: rgba(99, 102, 241, 0.08);
}

.check { color: #10b981; font-weight: 700; }
.cross { color: #ef4444; font-weight: 700; }

/* Callout Banner */
.cta-banner {
  background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.2) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  margin: 60px 0 80px;
}

.cta-banner h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-banner p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 28px;
  font-size: 1.1rem;
}

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 50px 0 40px;
  background: #060910;
  color: var(--text-subtle);
  font-size: 0.88rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #ffffff;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--accent-indigo);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero h1 { font-size: 2.6rem; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .mcp-container { grid-template-columns: 1fr; }
  .flow-container { grid-template-columns: 1fr; }
  nav.nav-links { display: none; }
}

@media (max-width: 600px) {
  .hero h1 { font-size: 2.1rem; }
  .stat-strip { grid-template-columns: 1fr; }
  .quick-install { width: 100%; justify-content: space-between; }
  .footer-grid { flex-direction: column; text-align: center; }
}