/* ==========================================================================
   Design System Tokens (derived from Web/DESIGN-ollama.md)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Nunito:wght@500;600;700&display=swap');

:root {
  /* Colors */
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-ink: #000000;
  --color-ink-deep: #090909;
  --color-charcoal: #525252;
  --color-body: #737373;
  --color-mute: #a3a3a3;
  --color-canvas: #ffffff;
  --color-surface-soft: #fafafa;
  --color-surface-card: #ffffff;
  --color-hairline: #e5e5e5;
  --color-hairline-strong: #d4d4d4;
  --color-surface-dark: #171717;
  --color-on-dark: #ffffff;
  --color-on-dark-mute: rgba(255, 255, 255, 0.7);
  --color-focus-ring: rgba(59, 130, 246, 0.5);

  /* Terminal Accent Colors */
  --color-terminal-red: #ff5f56;
  --color-terminal-yellow: #ffbd2e;
  --color-terminal-green: #27c93f;

  /* Typography */
  --font-heading: "SF Pro Rounded", "Nunito", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "JetBrains Mono", monospace;

  /* Spacing Scale */
  --spacing-xxs: 2px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;
  --spacing-section: 88px;

  /* Radius Scale */
  --radius-none: 0px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Layout */
  --container-reading: 760px;
  --container-wide: 1040px;
}

/* Reset & Base Rules */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Buttons & Interactive Components */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  padding: 10px 22px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-primary);
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease;
  user-select: none;
  white-space: nowrap;
}

.btn-primary:hover {
  background-color: var(--color-ink-deep);
  border-color: var(--color-ink-deep);
}

.btn-primary:active {
  background-color: #262626;
  transform: scale(0.99);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  background-color: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  padding: 10px 20px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-hairline-strong);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
  user-select: none;
  white-space: nowrap;
}

.btn-secondary:hover {
  border-color: var(--color-ink);
  background-color: var(--color-surface-soft);
}

.btn-pill-dark {
  background-color: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-canvas);
}

.btn-pill-dark:hover {
  background-color: #f0f0f0;
}

/* Search Pill */
.search-pill-container {
  position: relative;
  display: flex;
  align-items: center;
}

.search-pill {
  width: 100%;
  max-width: 340px;
  height: 36px;
  background-color: var(--color-surface-soft);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 8px 16px 8px 36px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  outline: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-pill::placeholder {
  color: var(--color-mute);
}

.search-pill:focus {
  background-color: var(--color-canvas);
  border-color: var(--color-hairline-strong);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.search-icon {
  position: absolute;
  left: 12px;
  width: 15px;
  height: 15px;
  stroke: var(--color-mute);
  pointer-events: none;
}

/* Install & Code Pills */
.install-pill {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-full);
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-ink);
  max-width: 100%;
  user-select: all;
}

.install-pill .copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  color: var(--color-mute);
  padding: 4px;
  border-radius: var(--radius-full);
  transition: color 0.15s ease;
}

.install-pill .copy-btn:hover {
  color: var(--color-ink);
}

/* Cards */
.card-standard {
  background-color: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xxl);
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease;
}

.card-dark {
  background-color: var(--color-surface-dark);
  color: var(--color-on-dark);
  border: 1px solid var(--color-surface-dark);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xxl);
  display: flex;
  flex-direction: column;
}

/* Terminal Card */
.terminal-card {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  text-align: left;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-xs);
}

.traffic-light {
  width: 11px;
  height: 11px;
  border-radius: var(--radius-full);
}

.traffic-red { background-color: var(--color-terminal-red); }
.traffic-yellow { background-color: var(--color-terminal-yellow); }
.traffic-green { background-color: var(--color-terminal-green); }

/* Common Navigation Bar */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-hairline);
  display: flex;
  align-items: center;
}

.nav-container {
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.nav-brand img, .nav-brand svg {
  width: 26px;
  height: 26px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-charcoal);
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-ink);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Site Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--color-hairline);
  padding: var(--spacing-xxl) var(--spacing-xl);
  background-color: var(--color-canvas);
}

.footer-container {
  max-width: var(--container-wide);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.footer-links-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--color-body);
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--color-ink);
}

.footer-copy {
  font-size: 13px;
  color: var(--color-mute);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  color: var(--color-ink);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    padding: var(--spacing-lg) var(--spacing-xl);
    gap: var(--spacing-md);
  }
}