/* zarlcorp design system — terminal meets modern web */
/* OKLCH monochromatic dark palette, clean cards, terminal prompt nav */

/* --- design tokens --- */

:root {
  --background: oklch(0.1 0.01 240);
  --foreground: oklch(0.9 0.01 240);
  --card: oklch(0.15 0.01 240);
  --card-foreground: oklch(0.8 0.01 240);
  --primary: oklch(0.7 0.02 240);
  --muted: oklch(0.2 0.01 240);
  --muted-foreground: oklch(0.6 0.01 240);
  --accent-alt: oklch(70% 0.1061 247.76);
  --border: oklch(0.3 0.01 240);

  /* tool accent — overridden per tool page */
  --accent: var(--primary);

  /* typography */
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* layout */
  --gap: 14px;
  --radius: 4px;
  --content-width: 800px;

  /* shadows */
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* --- reset --- */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  text-decoration: underline;
  color: var(--foreground);
}

::selection {
  background: var(--muted);
  color: var(--foreground);
}

/* --- layout --- */

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

/* --- bar (terminal prompt nav) --- */

.bar {
  background: var(--background);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--gap);
  font-size: 0.8rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.bar .container {
  display: flex;
  align-items: center;
  height: 40px;
  gap: 1.5rem;
}

.bar .prompt {
  margin-right: auto;
  white-space: nowrap;
  font-weight: 400;
  font-size: 0.85rem;
}

.bar .prompt-user {
  color: var(--accent-alt);
  font-weight: 700;
}

.bar .prompt-sep {
  color: var(--muted-foreground);
}

.bar .prompt-path {
  color: var(--primary);
}

.bar .prompt-dollar {
  color: var(--muted-foreground);
  margin-left: 1px;
}

.bar .nav-links {
  display: contents;
}

.bar a {
  color: var(--muted-foreground);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.bar a:hover {
  color: var(--foreground);
  text-decoration: none;
}

/* --- landing (base layout for all landing pages) --- */

.landing {
  min-height: calc(100vh - 40px);
  display: flex;
  flex-direction: column;
  padding-top: 8vh;
}

.landing .hero {
  padding: 2rem 0 1.5rem;
}

.landing .install {
  padding: 1.5rem 0;
  text-align: center;
}

.landing .footer {
  padding: 1.5rem 0 2rem;
}

/* --- hero --- */

.hero {
  padding: 4rem 0 2.5rem;
  text-align: center;
}

.logo {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.logo::after {
  content: "";
  display: block;
  width: 120px;
  height: 2px;
  margin: 0.75rem auto 0;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.3;
}

.tagline {
  font-size: 1rem;
  color: var(--card-foreground);
  margin-top: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* --- section heading --- */

.section-heading {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted-foreground);
  margin-bottom: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* --- card (clean bordered container) --- */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card + .card {
  margin-top: var(--gap);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--muted);
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  letter-spacing: 0.03em;
  user-select: none;
}

.card-content {
  padding: 1.25rem 1.5rem;
}

/* --- tool cards --- */

.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.tool-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow);
}

.tool-card:hover {
  border-color: var(--muted-foreground);
  color: inherit;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  text-decoration: none;
}

.tool-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.03em;
}

.tool-desc {
  color: var(--card-foreground);
  margin-top: 0.4rem;
  font-size: 0.8rem;
  line-height: 1.6;
}

/* per-tool accent colors */
.tool-card[href*="zburn"] .tool-name { color: oklch(0.75 0.12 55); }
.tool-card[href*="zvault"] .tool-name { color: oklch(0.7 0.12 300); }
.tool-card[href*="zshield"] .tool-name { color: oklch(0.75 0.1 180); }

/* --- install command --- */

.install-cmd {
  display: inline-block;
  font-size: 0.85rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 2.5rem 0.65rem 1.25rem;
  color: var(--foreground);
  letter-spacing: 0.01em;
  box-shadow: var(--shadow);
  position: relative;
}

.copy-btn {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--muted-foreground);
  cursor: pointer;
  padding: 0.25rem;
  line-height: 0;
  transition: color 0.15s;
}

.copy-btn:hover {
  color: var(--foreground);
}

.copy-btn svg {
  display: block;
}

.install-cmd .prompt {
  color: var(--accent-alt);
  user-select: none;
}

/* --- os-aware install --- */

.install-os-aware .install-macos,
.install-os-aware .install-linux {
  display: none;
}

.install-os-aware.show-macos .install-macos {
  display: block;
}

.install-os-aware.show-linux .install-linux {
  display: block;
}

.install-os-aware.show-both .install-macos,
.install-os-aware.show-both .install-linux {
  display: block;
}

.install-os-aware .install-linux {
  margin-top: 0.5rem;
}

/* --- badge --- */

.badge {
  display: inline-block;
  font-size: 0.65rem;
  color: var(--muted-foreground);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.1rem 0.4rem;
  vertical-align: middle;
  margin-left: 0.5rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* --- feature list --- */

.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  color: var(--card-foreground);
  font-size: 0.85rem;
  padding: 0.2rem 0;
  line-height: 1.7;
}

.feature-list li::before {
  content: "\2022";
  color: var(--accent);
  margin-right: 0.6rem;
  font-weight: 700;
}

/* --- footer --- */

.footer {
  padding: 2.5rem 0 3rem;
  text-align: center;
  color: var(--muted-foreground);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.footer p {
  margin-bottom: 0.2rem;
}

.footer a {
  color: var(--muted-foreground);
}

.footer a:hover {
  color: var(--accent-alt);
}

/* --- doc content (prose inside cards) --- */

.doc-content {
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

.doc-content h1 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  margin: 2.5rem 0 1rem;
  letter-spacing: 0.03em;
}

.doc-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  margin: 2rem 0 0.75rem;
  letter-spacing: 0.02em;
}

.doc-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--foreground);
  margin: 1.75rem 0 0.5rem;
}

.doc-content h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--card-foreground);
  margin: 1.5rem 0 0.5rem;
}

.doc-content p {
  margin-bottom: 1rem;
  color: var(--card-foreground);
}

.doc-content code {
  font-size: 0.85em;
  background: var(--muted);
  border-radius: var(--radius);
  padding: 0.15em 0.4em;
  color: var(--foreground);
}

.doc-content pre {
  margin: 1.25rem 0;
  border-radius: var(--radius);
  overflow-x: auto;
}

.doc-content pre code {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--foreground);
}

.doc-content ul,
.doc-content ol {
  margin: 0.5rem 0 1rem 1.5rem;
  color: var(--card-foreground);
}

.doc-content li {
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.doc-content li::marker {
  color: var(--accent);
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.doc-content th,
.doc-content td {
  text-align: left;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--border);
}

.doc-content th {
  background: var(--muted);
  color: var(--card-foreground);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.doc-content td {
  color: var(--card-foreground);
}

.doc-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.5rem 1rem;
  margin: 1.25rem 0;
  color: var(--muted-foreground);
  background: var(--muted);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.doc-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.doc-content a {
  color: var(--accent-alt);
}

.doc-content a:hover {
  color: var(--foreground);
}

.doc-content img {
  max-width: 100%;
  border-radius: var(--radius);
}

.doc-content strong {
  color: var(--foreground);
  font-weight: 600;
}

.doc-content em {
  color: var(--muted-foreground);
}

/* --- responsive --- */

@media (min-width: 600px) {
  .tool-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  :root {
    --gap: 10px;
  }

  html {
    font-size: 15px;
  }

  .logo {
    font-size: 2rem;
  }

  .hero {
    padding: 3rem 0 1.5rem;
  }

  .card-content {
    padding: 1rem;
  }

  .tool-card {
    padding: 1rem 1.25rem;
  }

  .bar .container {
    height: 36px;
  }

  .bar .nav-links {
    display: flex;
    gap: 1rem;
  }
}

/* --- utility classes --- */

.text-accent { color: var(--accent); }
.text-muted { color: var(--muted-foreground); }