/*
  Shared project hub theme.

  This file is owned by the root site repo and loaded by project repos as:

    <link rel="stylesheet" href="/assets/site/theme.css">

  Keep this file focused on site-wide design tokens, typography, layout primitives,
  buttons, cards, and shared project chrome. Put app-specific layout in each project.
*/

@font-face {
  font-family: "Berkeley Mono";
  src: url("/assets/site/fonts/BerkeleyMonoVariable-Regular.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 400 800;
}

@font-face {
  font-family: "Berkeley Mono";
  src: url("/assets/site/fonts/BerkeleyMonoVariable-Italic.woff2") format("woff2");
  font-display: swap;
  font-style: italic;
  font-weight: 400 800;
}

:root {
  color-scheme: light;

  --site-font-body: "Berkeley Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --site-font-mono: "Berkeley Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --site-bg: #f6f7f8;
  --site-bg-soft: #eef0f2;
  --site-surface: #ffffff;
  --site-surface-strong: #f1f3f5;
  --site-text: #16181b;
  --site-muted: #555f6d;
  --site-subtle: #737d8a;
  --site-border: #d8dde3;
  --site-border-strong: #b8c0ca;
  --site-accent: #145bd7;
  --site-accent-strong: #0f3f97;
  --site-danger: #b42318;

  --site-radius-sm: 4px;
  --site-radius: 6px;
  --site-max-width: 1120px;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --site-bg: #111315;
  --site-bg-soft: #171a1e;
  --site-surface: #1c2025;
  --site-surface-strong: #242a31;
  --site-text: #f0f2f4;
  --site-muted: #b0b7c0;
  --site-subtle: #858e99;
  --site-border: #343b44;
  --site-border-strong: #4a535e;
  --site-accent: #78a7ff;
  --site-accent-strong: #a9c7ff;
  --site-danger: #ff9a9a;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--site-bg);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: var(--site-font-body);
  background: var(--site-bg);
  color: var(--site-text);
  line-height: 1.55;
}

body::selection {
  background: var(--site-accent);
  color: var(--site-surface);
}

a {
  color: var(--site-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--site-accent-strong);
}

button,
input,
textarea,
select {
  font: inherit;
}

code,
pre {
  font-family: var(--site-font-mono);
}

.site-page {
  width: min(100% - 32px, var(--site-max-width));
  margin: 0 auto;
  padding: 24px 0 72px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--site-border);
  background: color-mix(in srgb, var(--site-bg) 94%, transparent);
  backdrop-filter: blur(10px);
}

.site-header__inner {
  width: min(100% - 32px, var(--site-max-width));
  min-height: 56px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  color: var(--site-text);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
}

.site-brand:hover {
  color: var(--site-text);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  flex-wrap: wrap;
}

.site-nav a,
.site-theme-toggle {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 10px;
  border-radius: var(--site-radius-sm);
  color: var(--site-muted);
  text-decoration: none;
  border: 1px solid transparent;
  background: transparent;
}

.site-nav a:hover,
.site-theme-toggle:hover {
  color: var(--site-text);
  border-color: var(--site-border);
  background: var(--site-surface);
}

.site-theme-toggle {
  cursor: pointer;
}

.site-hero {
  display: grid;
  gap: 14px;
  padding: 56px 0 40px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--site-border);
}

.site-kicker {
  margin: 0;
  color: var(--site-subtle);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0;
}

.site-title {
  max-width: 16ch;
  margin: 0;
  font-size: 3.75rem;
  line-height: 1;
  letter-spacing: 0;
}

.site-lede {
  max-width: 66ch;
  margin: 0;
  color: var(--site-muted);
  font-size: 1.1rem;
}

.site-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.site-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 40px;
  padding: 8px 12px;
  border-radius: var(--site-radius-sm);
  border: 1px solid var(--site-accent);
  background: var(--site-accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.site-button:hover {
  border-color: var(--site-accent-strong);
  background: var(--site-accent-strong);
  color: #ffffff;
}

.site-button--ghost {
  background: transparent;
  border-color: var(--site-border-strong);
  color: var(--site-text);
}

.site-button--ghost:hover {
  color: var(--site-text);
  background: var(--site-surface-strong);
  border-color: var(--site-border-strong);
}

.site-project-index {
  display: grid;
  gap: 16px;
}

.site-filter {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--site-border);
}

.site-filter__summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: max-content;
}

.site-filter__summary h1 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.site-filter__summary p {
  margin: 0;
  color: var(--site-subtle);
  font-size: 0.9rem;
}

.site-filter__controls {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  flex-wrap: wrap;
}

.site-filter-button {
  min-height: 32px;
  padding: 4px 9px;
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius-sm);
  background: var(--site-surface);
  color: var(--site-muted);
  cursor: pointer;
}

.site-filter-button:hover {
  border-color: var(--site-border-strong);
  color: var(--site-text);
}

.site-filter-button.is-active {
  border-color: var(--site-text);
  background: var(--site-text);
  color: var(--site-bg);
}

.site-empty {
  margin: 0;
  color: var(--site-muted);
}

.site-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 16px;
}

.site-section-heading h2 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0;
}

.site-section-heading p {
  margin: 0;
  color: var(--site-muted);
}

.site-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 12px;
}

.site-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  background: var(--site-surface);
}

.site-card--project {
  min-height: 216px;
  padding: 16px;
}

.site-card--project .site-actions {
  margin-top: 4px;
}

.site-card--link {
  display: block;
  min-height: 216px;
  padding: 16px;
  color: var(--site-text);
  text-decoration: none;
}

.site-card--link:hover {
  border-color: var(--site-border-strong);
  background: var(--site-surface-strong);
}

.site-card__content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
}

.site-card h3 {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: 0;
}

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

.site-card__meta {
  color: var(--site-subtle);
  font-size: 0.9rem;
}

.site-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.site-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 6px;
  border-radius: var(--site-radius-sm);
  color: var(--site-muted);
  border: 1px solid var(--site-border);
  background: var(--site-surface-strong);
  font-size: 0.82rem;
}

.site-prose {
  max-width: 72ch;
}

.site-prose h1,
.site-prose h2,
.site-prose h3 {
  letter-spacing: 0;
}

.site-prose p,
.site-prose li {
  color: var(--site-muted);
}

.project-stage {
  padding: 24px;
}

.project-panel {
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  background: var(--site-surface-strong);
  padding: 16px;
}

.project-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.site-input {
  min-height: 40px;
  width: min(100%, 288px);
  padding: 8px 10px;
  color: var(--site-text);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius-sm);
  background: var(--site-surface);
}

.site-footer {
  border-top: 1px solid var(--site-border);
  color: var(--site-subtle);
}

.site-footer__inner {
  width: min(100% - 32px, var(--site-max-width));
  margin: 0 auto;
  padding: 20px 0 28px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 680px) {
  .site-page {
    padding-top: 20px;
  }

  .site-header__inner {
    min-height: auto;
    align-items: flex-start;
    flex-direction: column;
    padding: 10px 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .site-filter {
    flex-direction: column;
  }

  .site-filter__summary {
    width: 100%;
    justify-content: space-between;
  }

  .site-filter__controls {
    justify-content: flex-start;
  }

  .site-hero {
    padding: 36px 0 28px;
  }

  .site-title {
    font-size: 2.45rem;
  }

  .site-section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}