/* Homepage stylesheet: dark-first, rust accent, no external resources. */

:root {
  --bg: #0f1115;
  --bg-elev: #161a21;
  --bg-soft: #1c212a;
  --border: #2a313d;
  --text: #e6e8ec;
  --muted: #9aa3b2;
  --accent: #f46623;
  --accent-strong: #ff7a3d;
  --accent-soft: rgba(244, 102, 35, 0.12);
  --ok: #4cc38a;
  --danger: #ef5b5b;
  --code-kw: #ff9e64;
  --code-fn: #7aa2f7;
  --code-ty: #9ece6a;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Ubuntu, Cantarell, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #fbfaf8;
    --bg-elev: #ffffff;
    --bg-soft: #f3f1ed;
    --border: #e2ded7;
    --text: #1d2026;
    --muted: #5d6573;
    --accent: #c4410f;
    --accent-strong: #a83508;
    --accent-soft: rgba(196, 65, 15, 0.09);
    --code-kw: #b4430f;
    --code-fn: #2f5bd3;
    --code-ty: #3d7a1f;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.06);
    color-scheme: light;
  }
}

:root[data-theme="light"] {
  --bg: #fbfaf8;
  --bg-elev: #ffffff;
  --bg-soft: #f3f1ed;
  --border: #e2ded7;
  --text: #1d2026;
  --muted: #5d6573;
  --accent: #c4410f;
  --accent-strong: #a83508;
  --accent-soft: rgba(196, 65, 15, 0.09);
  --code-kw: #b4430f;
  --code-fn: #2f5bd3;
  --code-ty: #3d7a1f;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.06);
  color-scheme: light;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1;
  padding-bottom: 4rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 0.2em;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

code,
pre,
kbd {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: -0.01em;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 1rem 0;
}

.container {
  width: min(1100px, 100% - 2.5rem);
  margin-inline: auto;
}

.narrow {
  width: min(760px, 100% - 2.5rem);
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 0.875rem;
}

.lead {
  font-size: 1.15rem;
  margin-top: -0.5rem;
}

.code-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin: 0 0 0.25rem;
}

.skip-link {
  position: absolute;
  left: -999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--bg-elev);
  padding: 0.5rem 1rem;
}

/* --- header / footer ------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 4rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.brand:hover {
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
}

.site-nav {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--bg-soft);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  background: var(--accent-soft);
}

.icon-button {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  flex: none;
}

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

.menu-button {
  display: none;
  margin-left: auto;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}

/* --- hero ------------------------------------------------------------------ */

.hero {
  padding: 5rem 0 3.5rem;
  background:
    radial-gradient(60rem 30rem at 85% -10%, var(--accent-soft), transparent 70%),
    linear-gradient(to bottom, transparent, var(--bg));
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin: 0;
  letter-spacing: -0.03em;
}

.hero-tagline {
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0.5rem 0 2rem;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero-code {
  margin: 0;
  padding: 1.5rem 1.75rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
  line-height: 1.7;
  font-size: 0.95rem;
}

.tok-kw {
  color: var(--code-kw);
}

.tok-fn {
  color: var(--code-fn);
}

.tok-ty {
  color: var(--code-ty);
}

.tok-op {
  color: var(--accent);
  font-weight: 700;
}

.home-grid {
  display: grid;
  gap: 3rem;
  padding-top: 3rem;
}

.home-intro {
  max-width: 760px;
}

.section-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 2.5rem 0 1rem;
}

.home-grid .section-title {
  margin-top: 0;
}

.more {
  margin-top: 1.5rem;
  display: flex;
  gap: 1.5rem;
}

/* --- buttons ----------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.button:hover {
  border-color: var(--accent);
  color: var(--text);
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.button.primary:hover {
  background: var(--accent-strong);
}

.button.danger {
  color: var(--danger);
}

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

.button.small {
  padding: 0.3rem 0.7rem;
  font-size: 0.85rem;
}

.button:disabled {
  opacity: 0.6;
  cursor: progress;
}

/* --- pages & prose ---------------------------------------------------------- */

.page {
  padding-top: 3rem;
}

.page-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  margin: 2.5rem 0 1rem;
}

.page .page-title {
  margin-top: 0.5rem;
}

.prose h1,
.prose h2,
.prose h3 {
  margin: 2.2rem 0 0.75rem;
}

.prose h2 {
  font-size: 1.45rem;
}

.prose h3 {
  font-size: 1.15rem;
}

.prose p,
.prose ul,
.prose ol {
  margin: 0 0 1.1rem;
}

.prose li + li {
  margin-top: 0.3rem;
}

.prose a {
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
}

.prose :not(pre) > code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 0.1em 0.35em;
  border-radius: 5px;
}

.prose pre {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  line-height: 1.55;
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 0.25rem 1.25rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.prose table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 1.25rem;
}

.prose th,
.prose td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.7rem;
  text-align: left;
}

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

/* --- posts ------------------------------------------------------------------- */

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
}

.post-link {
  display: grid;
  gap: 0.15rem;
  padding: 1rem 1.1rem;
  margin: 0 -1.1rem;
  border-radius: var(--radius);
  color: var(--text);
}

.post-link:hover {
  background: var(--bg-soft);
  text-decoration: none;
  color: var(--text);
}

.post-title {
  font-weight: 650;
  font-size: 1.1rem;
}

.post-summary {
  color: var(--muted);
  font-size: 0.95rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: var(--bg-soft);
}

.tag-news {
  color: var(--code-fn);
}

.tag-writing {
  color: var(--accent);
}

/* --- cards / projects ------------------------------------------------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  display: block;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  color: var(--text);
  transition: border-color 0.15s, transform 0.15s;
}

a.card:hover,
.project-card:hover {
  border-color: var(--accent);
  text-decoration: none;
  color: var(--text);
}

a.card:hover {
  transform: translateY(-2px);
}

.card-title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card-text {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.chips,
.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.card-links {
  margin-top: 0.9rem;
}

.chip {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  background: var(--accent-soft);
}

/* --- links ------------------------------------------------------------------- */

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.link-list a {
  font-weight: 600;
}

.link-list p {
  margin: 0.15rem 0 0;
  font-size: 0.95rem;
}

/* --- states ------------------------------------------------------------------ */

.loading {
  padding: 2rem 0;
}

.error {
  color: var(--danger);
}

.ok {
  color: var(--ok);
}

.not-found {
  padding-top: 4rem;
}

/* --- forms ------------------------------------------------------------------- */

.form {
  display: grid;
  gap: 1rem;
}

.form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}

.form label.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
}

input[type="text"],
input[type="password"],
input[type="url"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  font: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea {
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.form-row .narrow-field {
  max-width: 180px;
}

.form-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.inline-form {
  grid-template-columns: minmax(200px, 360px) auto 1fr;
  align-items: end;
  margin-top: 1rem;
}

.auth-box {
  width: min(420px, 100% - 2.5rem);
  padding-top: 3rem;
}

/* --- admin ------------------------------------------------------------------- */

.admin {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2.5rem;
  padding-top: 2rem;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  position: sticky;
  top: 5rem;
  align-self: start;
}

.admin-nav a {
  color: var(--muted);
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
}

.admin-nav a:hover,
.admin-nav a[aria-current="page"] {
  color: var(--text);
  background: var(--bg-soft);
  text-decoration: none;
}

.admin-nav .button {
  margin-top: 0.5rem;
  justify-content: center;
}

.admin-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.admin-main .card {
  margin-bottom: 1.5rem;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th {
  text-align: left;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  font-weight: 600;
}

.table th,
.table td {
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.table.small {
  font-size: 0.85rem;
}

.row-actions {
  text-align: right;
  white-space: nowrap;
}

.row-actions .button + .button {
  margin-left: 0.4rem;
}

.truncate {
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.md-editor {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}

.tab {
  font: inherit;
  font-size: 0.9rem;
  border: 0;
  background: none;
  color: var(--muted);
  padding: 0.6rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.md-input {
  border: 0;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  min-height: 24rem;
  background: var(--bg-elev);
}

.md-input:focus {
  box-shadow: none;
}

.md-preview {
  padding: 1rem 1.5rem;
  min-height: 24rem;
}

/* --- responsive ---------------------------------------------------------------- */

@media (max-width: 860px) {
  .hero {
    padding-top: 3rem;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 0.75rem 1.25rem 1rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
  }

  .site-nav.open {
    display: flex;
  }

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

  .admin-nav {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .admin-nav hr {
    display: none;
  }

  .inline-form {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}