/* Backlinks.press UI — "anchor text" system.
   Link blue for action, visited violet for attention + live links, filled controls on cool paper. */
:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-fill: #edeff3;
  --color-fill-strong: #e2e5eb;
  --color-text: #0d1117;
  --color-accent: #3347ff;
  --color-accent-2: #7b3fe4;
  --color-divider: #e2e5ea;

  --color-neutral-100: #f7f8fa;
  --color-neutral-200: #edeff3;
  --color-neutral-300: #dce0e6;
  --color-neutral-400: #c2c8d1;
  --color-neutral-500: #9aa2ae;
  --color-neutral-600: #7a8392;
  --color-neutral-700: #5b6472;
  --color-neutral-800: #3d4451;
  --color-neutral-900: #1f242c;
  --color-accent-100: #eef0ff;
  --color-accent-200: #dde1ff;
  --color-accent-300: #b9c1ff;
  --color-accent-400: #8b97ff;
  --color-accent-500: #5d6cff;
  --color-accent-600: #2536e6;
  --color-accent-700: #1c2bc0;
  --color-accent-800: #18239a;
  --color-accent-900: #141c6e;
  --color-accent-2-100: #f3edff;
  --color-accent-2-200: #e6daff;
  --color-accent-2-300: #cdb5ff;
  --color-accent-2-400: #ae88fa;
  --color-accent-2-500: #9361f0;
  --color-accent-2-600: #7b3fe4;
  --color-accent-2-700: #6530c4;
  --color-accent-2-800: #4e2599;
  --color-accent-2-900: #361a6b;

  --font-heading: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --font-heading-weight: 600;
  --font-body: "Literata", ui-serif, Georgia, serif;
  --font-mono: "Geist Mono", ui-monospace, Menlo, monospace;

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-6: 24px; --space-8: 32px;
  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgb(13 17 23 / 6%), 0 0 0 1px rgb(13 17 23 / 4%);
  --shadow-md: 0 4px 16px -4px rgb(13 17 23 / 10%), 0 0 0 1px rgb(13 17 23 / 5%);
  --shadow-lg: 0 20px 48px -12px rgb(13 17 23 / 18%), 0 0 0 1px rgb(13 17 23 / 5%);
  --ring: 0 0 0 3px rgb(51 71 255 / 22%);
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font: 400 15px/1.55 var(--font-body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5 { font-family: var(--font-heading); font-weight: var(--font-heading-weight); line-height: 1.08; letter-spacing: -0.025em; margin: 0 0 var(--space-2); }
h1 { font-size: 42px; } h2 { font-size: 32px; } h3 { font-size: 22px; letter-spacing: -0.015em; } h4 { font-size: 18px; letter-spacing: -0.01em; } h5 { font-size: 16px; }
h6 { font: 600 12.5px/1.3 var(--font-body); letter-spacing: 0; color: var(--color-neutral-700); margin: 0 0 var(--space-2); }
p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { color: var(--color-accent-600); }
img { display: block; max-width: 100%; }
code, pre, .mono { font-family: var(--font-mono); }
.text-muted { color: var(--color-neutral-700); }
:focus { outline: none; }
:focus-visible { outline: none; box-shadow: var(--ring); border-radius: var(--radius-sm); }
::selection { background: var(--color-accent-200); }
.hr { height: 1px; border: 0; margin: var(--space-4) 0; background: var(--color-divider); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 40px; padding: 0 16px; border: 0; border-radius: var(--radius-md);
  font: 600 14px/1 var(--font-body); color: var(--color-text); text-decoration: none; white-space: nowrap;
  background: transparent; cursor: pointer; transition: background .15s, box-shadow .15s, transform .15s;
}
.btn i { font-size: 17px; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--color-accent); color: #fff; box-shadow: inset 0 1px 0 rgb(255 255 255 / 18%), 0 1px 2px rgb(51 71 255 / 30%); }
.btn-primary:hover { background: var(--color-accent-600); color: #fff; }
.btn-secondary { background: var(--color-fill); }
.btn-secondary:hover { background: var(--color-fill-strong); color: var(--color-text); }
.btn-ghost { color: var(--color-accent); padding: 0 10px; }
.btn-ghost:hover { background: var(--color-accent-100); }
.btn-icon { width: 40px; padding: 0; }
.btn-block { width: 100%; margin-top: var(--space-2); }

/* forms */
.field > label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--color-neutral-800); }
.input {
  width: 100%; height: 40px; padding: 0 12px; font: inherit; font-size: 14px; color: var(--color-text);
  background: var(--color-fill); border: 1px solid transparent; border-radius: var(--radius-md);
  transition: background .15s, border-color .15s, box-shadow .15s;
}
select.input { appearance: none; padding-right: 32px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235b6472' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; }
textarea.input { height: auto; min-height: 96px; padding: 10px 12px; resize: vertical; line-height: 1.5; }
.input::placeholder { color: var(--color-neutral-600); }
.input:hover { background: var(--color-fill-strong); }
.input:focus, .input:focus-visible { background: var(--color-surface); border-color: var(--color-accent); box-shadow: var(--ring); border-radius: var(--radius-md); }
.radio { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; }
.radio input, .seg-opt input { position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none; }
.radio .dot { width: 18px; height: 18px; flex: none; border-radius: 50%; background: var(--color-fill-strong); transition: box-shadow .15s, background .15s; }
.radio input:checked + .dot { background: var(--color-accent); box-shadow: inset 0 0 0 5px var(--color-accent), inset 0 0 0 9px #fff; }
.radio input:focus-visible + .dot { box-shadow: var(--ring); }

/* segmented control — filled track, raised selection */
.seg { display: inline-flex; gap: 2px; padding: 3px; background: var(--color-fill); border-radius: var(--radius-md); }
.seg-opt {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 7px 12px;
  border: 0; border-radius: 8px; background: transparent; color: var(--color-neutral-700);
  font: 500 13px/1.2 var(--font-body); cursor: pointer; white-space: nowrap; transition: background .15s, color .15s;
}
.seg-opt:hover { color: var(--color-text); }
.seg-opt.on, .seg-opt:has(input:checked) { background: var(--color-surface); color: var(--color-text); box-shadow: var(--shadow-sm); font-weight: 600; }

/* cards */
.card { display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-4); background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.card-kicker { font-size: 12.5px; font-weight: 600; color: var(--color-accent); }
.card-title { font: 600 17px/1.2 var(--font-heading); letter-spacing: -0.015em; }
.card-body { margin: 0; font-size: 14px; color: var(--color-neutral-700); flex: 1; }
.card-meta { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--color-neutral-600); }
.elev-sm { box-shadow: var(--shadow-sm); } .elev-md { box-shadow: var(--shadow-md); } .elev-lg { box-shadow: var(--shadow-lg); }

/* tags — pills */
.tag { display: inline-flex; align-items: center; gap: 4px; height: 24px; padding: 0 10px; border-radius: 999px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-700); }
.tag-accent-2 { background: var(--color-accent-2-100); color: var(--color-accent-2-700); }
.tag-neutral { background: var(--color-fill); color: var(--color-neutral-800); }
.tag-outline { background: var(--color-accent-2-100); color: var(--color-accent-2-700); text-decoration: underline; text-underline-offset: 2px; } /* live = a visited link */

/* nav */
.nav { display: flex; align-items: center; gap: var(--space-6); }
.nav a { color: var(--color-neutral-800); text-decoration: none; font-size: 14px; font-weight: 500; }
.nav a:hover, .nav a[aria-current='page'] { color: var(--color-text); }
.nav a[aria-current='page'] { text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: 2px; text-underline-offset: 6px; }

/* tables */
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th { text-align: left; font-size: 12px; font-weight: 500; color: var(--color-neutral-600); padding: 10px 9px; border-bottom: 1px solid var(--color-divider); white-space: nowrap; }
.table td { padding: 12px 9px; border-bottom: 1px solid var(--color-divider); vertical-align: middle; }
.table tbody tr { transition: background .12s; }
.table tbody tr:hover { background: var(--color-neutral-100); }
.table tbody tr:last-child td { border-bottom: 0; }

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