/* FeatureDrop — mobile-first, self-hosted fonts only */
@font-face {
  font-family: 'Poppins';
  src: url('/fonts/Poppins-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Poppins';
  src: url('/fonts/Poppins-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/JetBrainsMono-VariableFont_wght.ttf') format('truetype-variations'),
       url('/fonts/JetBrainsMono-VariableFont_wght.ttf') format('truetype');
  font-weight: 100 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --navy: #0A1628;
  --navy-2: #10203A;
  --navy-3: #16294A;
  --teal: #20C9B8;
  --coral: #FF6B5C;
  --cream: #F5EFE0;
  --cream-dim: #C9C2B0;
  --cream-faint: #8F8A7C;
  --line: rgba(245, 239, 224, 0.12);
  --focus: #FFD166;
  --sans: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 12px;
  --wrap: 760px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--navy);
  color: var(--cream);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 1rem; }
.mono { font-family: var(--mono); font-weight: 500; letter-spacing: 0.01em; }
.small { font-size: 0.85rem; color: var(--cream-dim); }

h1, h2, h3 { font-family: var(--sans); font-weight: 700; line-height: 1.2; margin: 0 0 0.5rem; }
h1 { font-size: clamp(1.6rem, 5vw, 2.4rem); }
h2 { font-size: clamp(1.2rem, 4vw, 1.5rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 0.9rem; }
a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #6FE0D4; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}
button:focus-visible, a.btn:focus-visible, .chip:focus-visible { outline-offset: 2px; }

.skip {
  position: absolute; left: 0; top: -100px;
  background: var(--focus); color: var(--navy);
  padding: 0.5rem 1rem; font-weight: 700; z-index: 100; border-radius: 0 0 8px 0;
}
.skip:focus { top: 0; }

/* Sponsor bar */
.sponsor-bar {
  background: var(--navy-3);
  border-bottom: 1px solid var(--line);
  font-size: 0.85rem;
}
.sponsor-bar .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: 2.4rem; padding-top: 0.3rem; padding-bottom: 0.3rem;
}
.sponsor-bar .mono { color: var(--cream-faint); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; }
.sponsor-bar a { color: var(--teal); font-family: var(--mono); font-weight: 600; }

/* Header */
.site-header { padding: 1.4rem 0 0.6rem; }
.brand {
  font-family: var(--sans); font-weight: 700; font-size: 1.7rem; letter-spacing: -0.02em;
  color: var(--cream); text-decoration: none; display: inline-block;
}
.brand-drop { color: var(--teal); }
.brand-dot { color: var(--coral); }
.tagline { color: var(--cream-dim); font-size: 0.8rem; margin: 0.2rem 0 0; }

/* Hero */
.hero { padding: 1.2rem 0 0.8rem; border-bottom: 1px solid var(--line); margin-bottom: 1.2rem; }
.hero p { color: var(--cream-dim); max-width: 60ch; }
.stats { display: flex; flex-wrap: wrap; gap: 0.5rem 1.1rem; font-size: 0.8rem; color: var(--cream-dim); margin: 0; }
.stat::before { content: '●'; margin-right: 0.4rem; color: var(--cream-faint); }
.stat-chatgpt::before { color: var(--teal); }
.stat-claude::before { color: var(--coral); }
.stat-gemini::before { color: var(--cream); }

/* Filters */
.filters { margin: 0 0 1.4rem; }
.chip-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 0.55rem; }
.chip {
  font-family: var(--mono); font-size: 0.82rem; font-weight: 600;
  color: var(--cream); background: var(--navy-2);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 0.4rem 0.9rem; cursor: pointer; line-height: 1.2;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.chip:hover { border-color: var(--cream-faint); }
.chip[aria-pressed="true"] { background: var(--cream); color: var(--navy); border-color: var(--cream); }
.chip-chatgpt[aria-pressed="true"] { background: var(--teal); border-color: var(--teal); }
.chip-claude[aria-pressed="true"] { background: var(--coral); border-color: var(--coral); }
.filter-status { font-size: 0.78rem; color: var(--cream-faint); margin: 0.2rem 0 0; min-height: 1.2em; }

/* Timeline */
.day { margin-bottom: 1.6rem; }
.day[hidden] { display: none; }
.day-heading {
  font-size: 0.9rem; font-weight: 700; color: var(--teal);
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.6rem;
  margin: 0 0 0.7rem; padding-top: 0.4rem;
}
.day-weekday { color: var(--cream-faint); font-weight: 500; }
.day-count { color: var(--cream-faint); font-weight: 400; font-size: 0.75rem; margin-left: auto; }
.cards { display: grid; gap: 0.8rem; }

.card, .entry {
  background: var(--navy-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--cream-faint);
  border-radius: var(--radius);
  padding: 0.95rem 1rem 0.8rem;
  scroll-margin-top: 1rem;
}
.card[hidden] { display: none; }
.card-chatgpt { border-left-color: var(--teal); }
.card-claude { border-left-color: var(--coral); }
.card-gemini { border-left-color: var(--cream); }
.card:target { box-shadow: 0 0 0 3px var(--focus); }

.card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; font-size: 0.75rem; margin-bottom: 0.45rem; }
.card-date { color: var(--cream-dim); }
.approx { text-decoration: underline dotted; cursor: help; color: var(--coral); margin-right: 0.15rem; font-weight: 700; }
.approx-note { color: var(--cream-faint); }

.tag {
  display: inline-block; padding: 0.12rem 0.55rem; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  border: 1px solid currentColor;
}
.tag-chatgpt { color: var(--teal); }
.tag-claude { color: var(--coral); }
.tag-gemini { color: var(--cream); }

.card-title { margin: 0 0 0.35rem; }
.card-title a { color: var(--cream); text-decoration: none; }
.card-title a:hover { color: var(--teal); text-decoration: underline; }
.card-summary { color: var(--cream-dim); margin-bottom: 0.6rem; font-size: 0.95rem; }
.card-links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.2rem; font-size: 0.78rem; }
.card-links .permalink { color: var(--cream-dim); }

/* Empty state */
.empty { text-align: center; padding: 2.4rem 1rem; border: 1px dashed var(--line); border-radius: var(--radius); margin-bottom: 1.6rem; }
.empty[hidden] { display: none; }
.empty-title { font-family: var(--sans); font-weight: 700; font-size: 1.2rem; margin-bottom: 0.3rem; }
.empty p { color: var(--cream-dim); }

/* Panels */
.panel { border-top: 1px solid var(--line); padding: 1.6rem 0 0.6rem; margin-top: 1rem; }
.panel p { color: var(--cream-dim); max-width: 60ch; }
.panel-sponsor h2::before { content: '◆ '; color: var(--coral); }
.btn {
  display: inline-block; background: var(--teal); color: var(--navy);
  font-family: var(--mono); font-weight: 700; font-size: 0.85rem;
  padding: 0.55rem 1rem; border-radius: 8px; text-decoration: none;
}
.btn:hover { background: #6FE0D4; color: var(--navy); }

.newsletter label { display: block; font-size: 0.75rem; color: var(--cream-faint); margin-bottom: 0.3rem; }
.newsletter-row { display: flex; flex-wrap: wrap; gap: 0.5rem; max-width: 460px; }
.newsletter input {
  flex: 1 1 200px; font: inherit; padding: 0.55rem 0.8rem;
  background: var(--navy-3); color: var(--cream); border: 1px solid var(--line); border-radius: 8px;
}
.newsletter button {
  font-family: var(--mono); font-weight: 700; font-size: 0.85rem;
  padding: 0.55rem 1rem; border-radius: 8px; border: 1px solid var(--line);
  background: var(--navy-3); color: var(--cream-dim);
}
.newsletter input:disabled, .newsletter button:disabled { opacity: 0.7; cursor: not-allowed; }

/* Entry page */
.crumbs { font-size: 0.8rem; margin: 1rem 0; color: var(--cream-faint); }
.entry { padding: 1.3rem 1.2rem; margin-bottom: 1.4rem; }
.entry h1 { margin: 0.3rem 0 0.7rem; }
.lede { font-size: 1.08rem; color: var(--cream); }
.entry-links { margin: 1rem 0 0.8rem; }
.related { margin-bottom: 1.4rem; }
.related h2 { font-size: 0.85rem; color: var(--teal); margin-bottom: 0.5rem; }
.related ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.45rem; }
.related li { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.related li a { color: var(--cream); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 2rem; padding: 1.4rem 0 2.4rem; }
.site-footer p { margin-bottom: 0.5rem; }
.site-footer .mono { font-size: 0.82rem; }

@media (min-width: 640px) {
  .wrap { padding: 0 1.5rem; }
  .site-header { padding-top: 2rem; }
  .brand { font-size: 2rem; }
  .card, .entry { padding: 1.1rem 1.25rem 0.95rem; }
}