/*
 * Obsidian Design Studio public site.
 * ZenithUI semantic styling adapted from ZenithResearch/zenith-ui commit
 * 46c7fbf09de23a54ac04ede705e8a98623056dc3 by project-owner direction.
 * This adaptation is distributed under this repository's AGPL-3.0-or-later license.
 * No ZenithUI font binaries or private runtime code are copied.
 */

:root {
  color-scheme: dark;
  --color-base: #131a18;
  --color-base-subtle: #202b27;
  --color-base-raised: #193830;
  --color-base-content: #d1faf0;
  --color-base-muted: #55a882;
  --color-base-border: rgba(155, 251, 227, 0.12);
  --color-base-border-strong: rgba(155, 251, 227, 0.24);
  --color-brand: #58efc9;
  --color-brand-content: #131a18;
  --color-brand-hover: #1de7b4;
  --color-brand-subtle: rgba(88, 239, 201, 0.08);
  --color-brand-muted: rgba(88, 239, 201, 0.18);
  --color-warm: #ffc19d;
  --color-warm-content: #0d1a16;
  --color-warm-subtle: rgba(255, 193, 157, 0.1);
  --color-success: #86efac;
  --color-error: #fda4af;
  --color-focus-ring: #58efc9;
  --color-glass-bg: rgba(32, 43, 39, 0.78);
  --color-glass-border: rgba(155, 251, 227, 0.14);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  --radius-sm: 4px;
  --radius: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  --font-technical: ui-monospace, "SFMono-Regular", "Cascadia Code", "Roboto Mono", monospace;
  --font-corporate: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-editorial: Georgia, "Times New Roman", serif;
  --shadow-surface: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 18px 60px rgba(0, 0, 0, 0.36);
  --transition-base: 150ms ease;
  --content-width: 1180px;
}

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

html {
  scroll-behavior: smooth;
  background: var(--color-base);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--color-base-content);
  background: var(--color-base);
  font-family: var(--font-corporate);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  color: var(--color-brand-content);
  background: var(--color-brand);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 40px), var(--content-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--color-glass-border);
  background: var(--color-glass-bg);
  backdrop-filter: blur(16px) saturate(1.25);
}

.nav-row {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  font-family: var(--font-technical);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.brand-mark {
  width: 20px;
  height: 28px;
  display: block;
  object-fit: contain;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.primary-nav a {
  padding: 7px 11px;
  border-radius: var(--radius);
  color: var(--color-base-muted);
  text-decoration: none;
  font-family: var(--font-technical);
  font-size: 12px;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  color: var(--color-base-content);
  background: var(--color-brand-subtle);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-base-border);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-size: 40px 40px;
  background-image:
    linear-gradient(var(--color-base-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-base-border) 1px, transparent 1px);
}

.hero-grid {
  position: relative;
  min-height: 690px;
  padding-block: var(--space-24);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: var(--space-16);
}

.hero-grid > *,
.install-grid > *,
.card-grid > *,
.docs-layout > *,
.docs-content,
.command-card,
pre {
  min-width: 0;
}

.eyebrow,
.section-label,
.doc-kicker {
  margin: 0 0 var(--space-4);
  color: var(--color-brand);
  font-family: var(--font-technical);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

h1 {
  max-width: 820px;
  margin-bottom: var(--space-6);
  font-family: var(--font-technical);
  font-size: clamp(42px, 6vw, 70px);
  font-weight: 500;
}

h2 {
  margin-bottom: var(--space-4);
  font-family: var(--font-technical);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 500;
}

h3 {
  margin-bottom: var(--space-3);
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 680px;
  margin: 0;
  color: var(--color-base-muted);
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions,
.button-row {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.zn-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-technical);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition-base), background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.zn-button:hover {
  transform: translateY(-1px);
}

.zn-button--primary {
  color: var(--color-brand-content);
  background: var(--color-brand);
}

.zn-button--primary:hover {
  background: var(--color-brand-hover);
}

.zn-button--ghost {
  color: var(--color-base-content);
  border-color: var(--color-base-border-strong);
  background: var(--color-base-subtle);
}

.zn-button--ghost:hover {
  border-color: var(--color-brand);
}

.status-row {
  margin-top: var(--space-10);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  color: var(--color-base-muted);
  font-family: var(--font-technical);
  font-size: 12px;
}

.status-row span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.status-row span::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(134, 239, 172, 0.08);
}

.editor-window {
  overflow: hidden;
  border: 1px solid var(--color-base-border-strong);
  border-radius: var(--radius-lg);
  background: #0e1513;
  box-shadow: var(--shadow-elevated);
  transform: rotate(0.7deg);
}

.editor-chrome {
  min-height: 46px;
  padding: 0 var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-base-border);
  background: var(--color-base-subtle);
  font-family: var(--font-technical);
  font-size: 11px;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-base-border-strong);
}

.window-dots i:first-child {
  background: var(--color-warm);
}

.editor-body {
  min-height: 430px;
  display: grid;
  grid-template-columns: 126px 1fr 132px;
}

.layer-panel,
.inspector-panel {
  padding: var(--space-4) var(--space-3);
  background: rgba(32, 43, 39, 0.76);
  color: var(--color-base-muted);
  font-family: var(--font-technical);
  font-size: 10px;
}

.layer-panel {
  border-right: 1px solid var(--color-base-border);
}

.inspector-panel {
  border-left: 1px solid var(--color-base-border);
}

.panel-title {
  margin-bottom: var(--space-4);
  color: var(--color-base-content);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.layer-row,
.property-row {
  margin-bottom: 4px;
  padding: 6px 7px;
  border-radius: var(--radius-sm);
}

.layer-row.selected {
  color: var(--color-brand);
  background: var(--color-brand-subtle);
}

.layer-row.child {
  padding-left: 18px;
}

.canvas-field {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background-color: #171f1c;
  background-size: 18px 18px;
  background-image: radial-gradient(rgba(155, 251, 227, 0.13) 1px, transparent 1px);
}

.artboard-preview {
  position: absolute;
  inset: 72px 34px 56px;
  overflow: hidden;
  border-radius: 3px;
  background: #f8faf9;
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.42);
}

.preview-rail {
  position: absolute;
  inset: 0 auto 0 0;
  width: 24%;
  background: #193830;
}

.preview-title {
  position: absolute;
  top: 16%;
  left: 31%;
  right: 12%;
  height: 11%;
  background: #131a18;
}

.preview-copy {
  position: absolute;
  top: 32%;
  left: 31%;
  right: 34%;
  height: 5%;
  background: #55a882;
}

.preview-card {
  position: absolute;
  top: 47%;
  left: 31%;
  width: 25%;
  height: 30%;
  border-radius: 5px;
  background: #9bfbe3;
}

.preview-card.second {
  left: 61%;
  background: #ffc19d;
}

.property-row {
  display: flex;
  justify-content: space-between;
  border: 1px solid var(--color-base-border);
}

.property-row b {
  color: var(--color-base-content);
  font-weight: 500;
}

.section {
  padding-block: var(--space-24);
  border-bottom: 1px solid var(--color-base-border);
}

.section-intro {
  max-width: 760px;
  margin-bottom: var(--space-12);
}

.section-intro p,
.lede {
  margin: 0;
  color: var(--color-base-muted);
  font-size: 18px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

.zn-card {
  padding: var(--space-6);
  border: 1px solid var(--color-base-border);
  border-radius: var(--radius-md);
  background: var(--color-base-subtle);
  box-shadow: var(--shadow-surface);
}

.zn-card--accent {
  border-color: var(--color-brand-border, rgba(88, 239, 201, 0.2));
  background: var(--color-brand-subtle);
}

.zn-card p {
  margin: 0;
  color: var(--color-base-muted);
}

.card-index {
  margin-bottom: var(--space-8);
  color: var(--color-brand);
  font-family: var(--font-technical);
  font-size: 12px;
}

.install-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: var(--space-10);
  align-items: start;
}

.command-card {
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--color-base-border-strong);
  border-radius: var(--radius-md);
  background: #0b110f;
}

.command-head {
  min-height: 44px;
  padding: 0 var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  border-bottom: 1px solid var(--color-base-border);
  color: var(--color-base-muted);
  font-family: var(--font-technical);
  font-size: 11px;
}

.copy-button {
  padding: 5px 9px;
  border: 1px solid var(--color-base-border-strong);
  border-radius: var(--radius-sm);
  color: var(--color-base-content);
  background: var(--color-base-subtle);
  cursor: pointer;
  font-family: var(--font-technical);
  font-size: 10px;
}

.copy-button:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

pre {
  width: 100%;
  max-width: 100%;
  margin: 0;
  overflow-x: auto;
  padding: var(--space-5);
  color: var(--color-base-content);
  font-family: var(--font-technical);
  font-size: 13px;
  line-height: 1.75;
  white-space: pre;
}

code {
  font-family: var(--font-technical);
}

:not(pre) > code {
  padding: 2px 5px;
  border: 1px solid var(--color-base-border);
  border-radius: var(--radius-sm);
  color: var(--color-brand);
  background: var(--color-brand-subtle);
  font-size: 0.9em;
}

.copy-status {
  min-height: 24px;
  margin: var(--space-2) 0 0;
  color: var(--color-success);
  font-family: var(--font-technical);
  font-size: 11px;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}

.steps li {
  position: relative;
  min-height: 58px;
  padding: 0 0 var(--space-6) 52px;
  counter-increment: step;
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-brand-border, rgba(88, 239, 201, 0.2));
  border-radius: var(--radius-sm);
  color: var(--color-brand);
  background: var(--color-brand-subtle);
  font-family: var(--font-technical);
  font-size: 11px;
}

.steps li::after {
  content: "";
  position: absolute;
  top: 39px;
  bottom: 4px;
  left: 17px;
  border-left: 1px solid var(--color-base-border);
}

.steps li:last-child::after {
  display: none;
}

.steps strong {
  display: block;
  color: var(--color-base-content);
}

.steps span {
  color: var(--color-base-muted);
}

.callout {
  padding: var(--space-5);
  border-left: 3px solid var(--color-warm);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-base-muted);
  background: var(--color-warm-subtle);
}

.callout strong {
  color: var(--color-warm);
}

.docs-hero {
  padding: var(--space-16) 0 var(--space-12);
  border-bottom: 1px solid var(--color-base-border);
}

.docs-hero h1 {
  max-width: 900px;
  font-size: clamp(36px, 5vw, 56px);
}

.docs-layout {
  padding-block: var(--space-12) var(--space-24);
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  justify-content: space-between;
  gap: var(--space-16);
}

.docs-toc {
  position: sticky;
  top: 92px;
  align-self: start;
}

.docs-toc p {
  margin: 0 0 var(--space-3);
  color: var(--color-base-muted);
  font-family: var(--font-technical);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.docs-toc a {
  display: block;
  padding: 6px 0;
  color: var(--color-base-muted);
  text-decoration: none;
  font-size: 14px;
}

.docs-toc a:hover {
  color: var(--color-brand);
}

.docs-content section {
  padding: 0 0 var(--space-16);
  scroll-margin-top: 96px;
}

.docs-content h2 {
  padding-top: var(--space-2);
  font-size: clamp(24px, 3.5vw, 34px);
}

.docs-content h3 {
  margin-top: var(--space-8);
}

.docs-content p,
.docs-content li {
  color: #a8c9c0;
}

.docs-content a {
  color: var(--color-brand);
}

.docs-content ul,
.docs-content ol:not(.steps) {
  padding-left: 22px;
}

.docs-content li + li {
  margin-top: var(--space-2);
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-base-border);
  border-radius: var(--radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-base-border);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--color-brand);
  background: var(--color-base-subtle);
  font-family: var(--font-technical);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

.architecture-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-8) 0;
}

.architecture-node {
  position: relative;
  min-height: 120px;
  padding: var(--space-4);
  border: 1px solid var(--color-base-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-base-subtle);
}

.architecture-node:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -19px;
  z-index: 2;
  color: var(--color-brand);
  font-family: var(--font-technical);
}

.architecture-node b {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-base-content);
  font-family: var(--font-technical);
  font-size: 12px;
}

.architecture-node span {
  color: var(--color-base-muted);
  font-size: 13px;
}

.site-footer {
  padding-block: var(--space-10);
  color: var(--color-base-muted);
  font-family: var(--font-technical);
  font-size: 12px;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.footer-row a {
  color: var(--color-brand);
  text-decoration: none;
}

@media (max-width: 920px) {
  .hero-grid,
  .install-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-grid {
    padding-block: var(--space-16);
  }

  .editor-window {
    transform: none;
  }

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

  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-toc {
    position: static;
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-base-border);
  }

  .docs-toc a {
    display: inline-block;
    margin-right: var(--space-4);
  }

  .architecture-flow {
    grid-template-columns: 1fr 1fr;
  }

  .architecture-node:nth-child(2)::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(calc(100% - 28px), var(--content-width));
  }

  .nav-row {
    align-items: flex-start;
    padding-block: var(--space-3);
  }

  .brand-lockup span:last-child {
    display: none;
  }

  .primary-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .primary-nav a {
    padding: 5px 7px;
    font-size: 10px;
  }

  .hero-grid {
    min-height: 0;
    gap: var(--space-10);
  }

  .hero-actions .zn-button,
  .button-row .zn-button {
    width: 100%;
  }

  .card-grid,
  .architecture-flow {
    grid-template-columns: 1fr;
  }

  .architecture-node::after {
    display: none;
  }

  .editor-body {
    min-height: 330px;
    grid-template-columns: 86px 1fr;
  }

  .inspector-panel {
    display: none;
  }

  .artboard-preview {
    inset: 52px 20px 40px;
  }

  .section {
    padding-block: var(--space-16);
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}