/* dotkeeper — site styles
   Reliable. Connected. Clean. */

/* =====================
   Custom Properties
   ===================== */

:root {
  color-scheme: dark light;

  --bg: #0b1120;
  --bg-alt: #111827;
  --bg-card: #151f30;
  --bg-inset: #0a0e1a;

  --text: #e2e8f0;
  --text-dim: #8892a6;
  --text-bright: #f8fafc;

  --accent: #34d399;
  --accent-hover: #6ee7b7;
  --accent-dim: rgba(52, 211, 153, 0.12);
  --accent-glow: rgba(52, 211, 153, 0.08);
  --accent-text: #0b1120;

  --terminal-bg: #0a0e14;
  --terminal-chrome: #161f2e;

  --border: #1e293b;
  --radius: 10px;
  --radius-lg: 14px;
  --max-width: 960px;

  --shadow-terminal: 0 0 0 1px var(--border), 0 8px 40px rgba(0,0,0,0.3), 0 0 80px var(--accent-glow);
  --card-shadow: none;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-alt: #f3f4f6;
    --bg-card: #ffffff;
    --bg-inset: #edf0f3;

    --text: #1a202c;
    --text-dim: #5a6577;
    --text-bright: #0f141a;

    --accent: #047857;
    --accent-hover: #065f46;
    --accent-dim: rgba(4, 120, 87, 0.08);
    --accent-glow: rgba(4, 120, 87, 0.06);
    --accent-text: #ffffff;

    --terminal-bg: #1a1e28;
    --terminal-chrome: #252b37;

    --border: #e2e8f0;

    --shadow-terminal: 0 0 0 1px rgba(0,0,0,0.08), 0 8px 40px rgba(0,0,0,0.15);
    --card-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
  }
}

/* =====================
   Reset & Base
   ===================== */

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover { color: var(--accent-hover); }

a:focus-visible, .btn:focus-visible, .btn-nav:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

code, pre {
  font-family: "JetBrains Mono", "Fira Code", "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  font-size: 0.875em;
}

code {
  background: var(--accent-dim);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: 5px;
}

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

/* =====================
   Layout
   ===================== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* =====================
   Navigation
   ===================== */

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 2rem;
}

.nav-brand {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-bright) !important;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }

.btn-nav {
  background: var(--accent-dim);
  color: var(--accent) !important;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.15s, color 0.15s;
}
.btn-nav:hover {
  background: var(--accent);
  color: var(--accent-text) !important;
}

/* =====================
   Buttons
   ===================== */

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.6rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--accent-text);
}

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

/* =====================
   Hero
   ===================== */

.hero {
  background: var(--bg);
  background-image: radial-gradient(ellipse 80% 50% at 50% -10%, var(--accent-glow), transparent);
  padding-bottom: 5rem;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 2rem 0;
}

.hero h1 {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-bright);
  margin-bottom: 0.75rem;
}

.tagline {
  font-size: 1.25rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1rem;
}

.subtitle {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 520px;
  margin: 0 auto 2rem;
}

.cta {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-demo {
  max-width: 720px;
  margin: 3rem auto 0;
  padding: 0 2rem;
}

@media (prefers-reduced-motion: no-preference) {
  .hero-demo {
    animation: fadeUp 0.6s ease-out;
  }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

[id] {
  scroll-margin-top: 2rem;
}

/* =====================
   Terminal
   ===================== */

.terminal {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-terminal);
}

.terminal-header {
  background: var(--terminal-chrome);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
}

.terminal-dots {
  display: flex;
  gap: 7px;
}

.terminal-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.terminal-dots span:nth-child(1) { background: #ef4444; }
.terminal-dots span:nth-child(2) { background: #eab308; }
.terminal-dots span:nth-child(3) { background: #22c55e; }

.terminal-title {
  flex: 1;
  text-align: center;
  color: #6b7280;
  font-size: 0.8rem;
  font-family: inherit;
  font-weight: 500;
  margin-right: 40px;
}

.terminal-body {
  background: var(--terminal-bg);
  color: #d1d5db;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.65;
}

.terminal-body .prompt {
  color: #34d399;
  font-weight: 700;
}

.terminal-body .output {
  color: #7c8494;
}

/* =====================
   Sections
   ===================== */

section {
  padding: 5rem 0;
}

h2 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
  color: var(--text-bright);
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}

section p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.7;
}

section p strong,
.docs-section p strong,
.docs-section li strong {
  color: var(--text);
  font-weight: 600;
}

/* =====================
   How it works
   ===================== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.step {
  text-align: center;
  padding: 1.5rem 1rem;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

/* =====================
   Features
   ===================== */

.features {
  background: var(--bg-alt);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.25rem;
}

.feature {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--card-shadow);
  transition: border-color 0.2s;
}

.feature:hover {
  border-color: var(--accent);
}

.feature h3 {
  color: var(--text-bright);
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

/* =====================
   Architecture
   ===================== */

.arch-diagram {
  background: var(--terminal-bg);
  color: #d1d5db;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.55;
  margin-bottom: 2.5rem;
}

.arch-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.arch-detail h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

/* =====================
   Install
   ===================== */

.install {
  background: var(--bg-alt);
}

.install-grid {
  display: grid;
  gap: 1.5rem;
}

.install-method {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--card-shadow);
}

.install-method pre {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 0.75rem 0;
  overflow-x: auto;
}

.install-method p {
  font-size: 0.9rem;
}

/* =====================
   Commands
   ===================== */

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  text-align: left;
  padding: 0.6rem 0;
  color: var(--text-dim);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border);
}

tr {
  border-bottom: 1px solid var(--border);
}

tr:last-child {
  border-bottom: none;
}

td {
  padding: 0.65rem 0;
  font-size: 0.95rem;
}

td:first-child {
  white-space: nowrap;
  padding-right: 2rem;
  font-weight: 500;
}

td:last-child {
  color: var(--text-dim);
}

/* =====================
   Footer
   ===================== */

footer {
  padding: 3rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

footer p {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--text-dim);
  font-size: 0.85rem;
}
.footer-links a:hover { color: var(--accent); }

footer .container > p a {
  color: var(--text-dim);
  text-decoration: underline;
  text-underline-offset: 2px;
}
footer .container > p a:hover { color: var(--accent); }

/* =====================
   Docs page
   ===================== */

.docs-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
}

.docs-content > h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}

.docs-content > h1 + p {
  color: var(--text-dim);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.docs-section {
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.docs-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.docs-section h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.docs-section h3 {
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.docs-section p {
  color: var(--text-dim);
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

.docs-section ul {
  color: var(--text-dim);
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.docs-section li {
  margin-bottom: 0.35rem;
  line-height: 1.6;
  font-size: 0.95rem;
}

.docs-section pre {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.55;
}

.comp-table {
  margin: 1.5rem 0;
}

.comp-table th {
  text-align: left;
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-bottom: 2px solid var(--border);
}

.comp-table td {
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  vertical-align: top;
}

/* =====================
   Responsive
   ===================== */

@media (max-width: 640px) {
  .hero h1 { font-size: 2.5rem; }
  .tagline { font-size: 1.1rem; }
  .subtitle { font-size: 0.95rem; }
  section { padding: 3.5rem 0; }
  h2 { font-size: 1.5rem; margin-bottom: 2rem; }

  nav { padding: 1rem 1.25rem; }
  .nav-links { gap: 1rem; }
  .nav-links a { font-size: 0.85rem; }

  .hero { padding-bottom: 3.5rem; }
  .hero-content { padding: 1.5rem 1.25rem 0; }
  .hero-demo { padding: 0 1rem; margin-top: 2rem; }

  .container { padding: 0 1.25rem; }

  .steps {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

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

  .terminal-body {
    font-size: 0.75rem;
    padding: 1rem;
  }

  .arch-diagram {
    font-size: 0.7rem;
    padding: 1rem;
  }

  .docs-content > h1 { font-size: 2rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .nav-brand { font-size: 0.9rem; }
  .terminal-title { display: none; }

  .terminal-body {
    font-size: 0.7rem;
    padding: 0.75rem;
  }
}