/* ===========================
   algono.co — terminal theme
   =========================== */

:root {
  --bg:         #0a0a0a;
  --bg-card:    #111111;
  --bg-door:    #0d1117;
  --border:     #1e2530;
  --border-dim: #161b22;
  --green:      #00d46a;
  --green-dim:  #00a34f;
  --green-faint:#003322;
  --text:       #c9d1d9;
  --text-dim:   #6e7681;
  --text-muted: #3d444d;
  --amber:      #e6b34d;
  --red:        #f85149;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --radius:     4px;
  --max-width:  900px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: var(--font-mono);
  background: var(--green-faint);
  color: var(--green);
  padding: 1px 6px;
  border-radius: var(--radius);
  font-size: 0.92em;
}

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

/* ===========================
   Header
   =========================== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border-dim);
  position: sticky;
  top: 0;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.prompt {
  color: var(--green);
}

.brand {
  color: var(--text);
  margin-left: 2px;
}

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

.nav-links a {
  color: var(--text-dim);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--green);
  text-decoration: none;
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 10px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.btn-primary {
  background: var(--green);
  color: #000;
  border-color: var(--green);
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--green-dim);
  border-color: var(--green-dim);
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--text-dim);
  text-decoration: none;
}

.btn-door {
  background: transparent;
  color: var(--green);
  border-color: var(--green-dim);
  width: 100%;
  text-align: center;
  margin-top: 16px;
}

.btn-door:hover {
  background: var(--green-faint);
  text-decoration: none;
}

.btn-purchase {
  background: var(--amber);
  color: #000;
  border-color: var(--amber);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
}

.btn-purchase:hover {
  background: #d4a043;
  border-color: #d4a043;
  text-decoration: none;
}

/* ===========================
   Hero
   =========================== */
.hero {
  padding: 96px 32px 80px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-eyebrow {
  color: var(--text-dim);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 28px;
  letter-spacing: -0.03em;
}

.hero-headline .prompt {
  opacity: 0.6;
  font-size: 0.7em;
  vertical-align: middle;
}

.hero-sub {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===========================
   Section commons
   =========================== */
.section-title {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-dim);
}

.section-lead {
  font-family: var(--font-sans);
  color: var(--text-dim);
  max-width: 620px;
  line-height: 1.8;
  margin-bottom: 40px;
}

/* ===========================
   Features
   =========================== */
.section-features {
  padding: 64px 0 72px;
  border-top: 1px solid var(--border-dim);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--border-dim);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature-card {
  background: var(--bg-card);
  padding: 28px 24px;
  transition: background 0.15s;
}

.feature-card:hover {
  background: #161b22;
}

.feature-icon {
  display: block;
  color: var(--green);
  font-size: 0.75rem;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.feature-card h3 {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-family: var(--font-sans);
  color: var(--text-dim);
  font-size: 0.87rem;
  line-height: 1.7;
}

/* ===========================
   Access / Doors
   =========================== */
.section-access {
  padding: 64px 0 72px;
  border-top: 1px solid var(--border-dim);
}

.door-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.door-card {
  background: var(--bg-door);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}

.door-label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-dim);
}

.terminal-block {
  background: #000;
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 0.82rem;
  line-height: 1.9;
  margin-bottom: 16px;
  overflow-x: auto;
}

.tb-prompt {
  color: var(--green);
  margin-right: 8px;
  user-select: none;
}

.tb-cmd {
  color: #fff;
}

.tb-indent {
  color: #fff;
  padding-left: 24px;
  display: inline-block;
}

.tb-comment {
  color: var(--text-muted);
  margin-left: 8px;
  font-size: 0.78rem;
}

.door-desc {
  font-family: var(--font-sans);
  color: var(--text-dim);
  font-size: 0.87rem;
  line-height: 1.7;
  flex: 1;
}

.inline-link {
  color: var(--green);
}

.inline-link:hover {
  text-decoration: underline;
}

.ritual-note {
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-align: center;
  padding-top: 8px;
}

/* ===========================
   Managed Service
   =========================== */
.section-service {
  padding: 64px 0 96px;
  border-top: 1px solid var(--border-dim);
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  max-width: 560px;
}

.service-price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 6px;
}

.service-tagline {
  font-family: var(--font-sans);
  color: var(--text-dim);
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.service-list {
  list-style: none;
  margin-bottom: 28px;
}

.service-list li {
  font-family: var(--font-sans);
  color: var(--text-dim);
  font-size: 0.87rem;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-dim);
  padding-left: 20px;
  position: relative;
}

.service-list li::before {
  content: '▸';
  color: var(--green);
  position: absolute;
  left: 0;
  font-size: 0.75em;
  top: 8px;
}

.service-note {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 10px;
  letter-spacing: 0.04em;
}

/* ===========================
   Footer
   =========================== */
.site-footer {
  border-top: 1px solid var(--border-dim);
  padding: 24px 32px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
}

.footer-copy {
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 0.78rem;
}

.footer-copy a {
  color: var(--text-dim);
}

.footer-copy a:hover {
  color: var(--green);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 640px) {
  .site-header {
    padding: 16px 20px;
  }

  .hero {
    padding: 60px 20px 52px;
  }

  .hero-headline {
    font-size: 2rem;
  }

  .door-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    padding: 28px 20px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ===========================
   Cursor blink on hero
   =========================== */
.hero-headline::after {
  content: '_';
  color: var(--green);
  animation: blink 1s step-start infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}