/* ==========================================================================
   Spread — full-bleed cover cards theme
   Each post is a tall card with gradient bg, light and dark modes
   ========================================================================== */

/* --- Design tokens -------------------------------------------------------- */

:root,
html[data-theme="light"] {
  --bg: #f5f3ef;
  --header-bg: #ffffff;
  --txt: #1a1a1a;
  --muted: rgba(26,26,26,0.5);
  --line: rgba(26,26,26,0.1);
  --accent: #b45309;
  --accent-soft: rgba(180,83,9,0.1);
  --card-text: #1a1a1a;
  --card-overlay: linear-gradient(to top, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.6) 60%, rgba(255,255,255,0) 100%);
  --tag-bg: rgba(180,83,9,0.1);
  --tag-border: rgba(180,83,9,0.25);
  --tag-color: #b45309;
  --footer-color: rgba(255,255,255,0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #080808;
    --header-bg: #0d0d0d;
    --txt: #f0ede8;
    --muted: rgba(240,237,232,0.5);
    --line: rgba(240,237,232,0.1);
    --accent: #e8c46a;
    --accent-soft: rgba(232,196,106,0.12);
    --card-text: #ffffff;
    --card-overlay: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.05) 100%);
    --tag-bg: rgba(232,196,106,0.15);
    --tag-border: rgba(232,196,106,0.3);
    --tag-color: #e8c46a;
    --footer-color: rgba(255,255,255,0.55);
  }
}

html[data-theme="dark"] {
  --bg: #080808;
  --header-bg: #0d0d0d;
  --txt: #f0ede8;
  --muted: rgba(240,237,232,0.5);
  --line: rgba(240,237,232,0.1);
  --accent: #e8c46a;
  --accent-soft: rgba(232,196,106,0.12);
  --card-text: #ffffff;
  --card-overlay: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.05) 100%);
  --tag-bg: rgba(232,196,106,0.15);
  --tag-border: rgba(232,196,106,0.3);
  --tag-color: #e8c46a;
  --footer-color: rgba(255,255,255,0.55);
}

/* --- Card gradient pairs: dark / light ------------------------------------ */

/* Dark gradients (deep, saturated) */
.grad-1 { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); }
.grad-2 { background: linear-gradient(135deg, #2d1b69 0%, #11998e 100%); }
.grad-3 { background: linear-gradient(135deg, #3d0000 0%, #8b0000 50%, #ff4500 100%); }
.grad-4 { background: linear-gradient(135deg, #0a192f 0%, #112240 50%, #1e3a5f 100%); }
.grad-5 { background: linear-gradient(135deg, #1a0533 0%, #3d1066 50%, #6b21a8 100%); }

/* Light gradients (vivid, airy) */
html[data-theme="light"] .grad-1 { background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 50%, #60a5fa 100%); }
html[data-theme="light"] .grad-2 { background: linear-gradient(135deg, #a7f3d0 0%, #34d399 50%, #059669 100%); }
html[data-theme="light"] .grad-3 { background: linear-gradient(135deg, #fde68a 0%, #fbbf24 50%, #f59e0b 100%); }
html[data-theme="light"] .grad-4 { background: linear-gradient(135deg, #c7d2fe 0%, #a5b4fc 50%, #818cf8 100%); }
html[data-theme="light"] .grad-5 { background: linear-gradient(135deg, #fbcfe8 0%, #f9a8d4 50%, #ec4899 100%); }

/* --- Reset & base --------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font-family: "Inter", -apple-system, system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }

::selection { background: var(--accent-soft); }

/* --- Header --------------------------------------------------------------- */

.site-header {
  background: var(--header-bg);
  padding: 1.75rem 2rem 1.25rem;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.35rem;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--txt);
}

.site-prompt { font-size: 1rem; line-height: 1; }

.brand-name {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--txt);
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-right nav { display: flex; gap: 1.5rem; font-size: 0.85rem; }

.header-right nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.header-right nav a:hover { color: var(--txt); }
.header-right nav a[aria-current="true"] { color: var(--accent); }

.site-tagline {
  max-width: 900px;
  margin: 0 auto;
  font-size: 0.78rem;
  color: var(--muted);
  font-style: italic;
  letter-spacing: 0.04em;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }

.theme-icon { display: none; }
.theme-icon-dark { display: inline; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-icon-dark { display: none; }
  :root:not([data-theme="light"]) .theme-icon-light { display: inline; }
}

html[data-theme="dark"] .theme-icon-dark { display: none; }
html[data-theme="dark"] .theme-icon-light { display: inline; }
html[data-theme="light"] .theme-icon-dark { display: inline; }
html[data-theme="light"] .theme-icon-light { display: none; }

/* --- Main content --------------------------------------------------------- */

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
}

/* --- Cover cards list ----------------------------------------------------- */

.covers-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cover-card {
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  min-height: 260px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cover-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.cover-link {
  display: block;
  text-decoration: none;
  color: var(--card-text);
  height: 100%;
  min-height: inherit;
}

.cover-body {
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 260px;
  background: var(--card-overlay);
}

.cover-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.cover-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tag-color);
  background: var(--tag-bg);
  padding: 0.2em 0.6em;
  border-radius: 4px;
  border: 1px solid var(--tag-border);
}

.cover-title {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.6rem;
  letter-spacing: -0.02em;
  color: var(--card-text);
}

.cover-desc {
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0 0 1rem;
  color: var(--card-text);
  opacity: 0.75;
  max-width: 55ch;
}

.cover-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--card-text);
  opacity: 0.55;
  font-weight: 500;
}

.draft-badge {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.1em 0.4em;
  border-radius: 3px;
  border: 1px solid currentColor;
  opacity: 0.7;
}

/* --- Post page ------------------------------------------------------------ */

.post-back {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 2rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color 0.15s ease;
}

.post-back:hover { color: var(--accent); }

.post-head {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.post-head h1 {
  font-family: "Fraunces", Georgia, serif;
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.post-meta-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.post-meta-sep { opacity: 0.5; }
.post-tags { display: inline-flex; gap: 0.5rem; margin-left: 0.25rem; }
.post-tag { color: var(--accent); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }

.post { max-width: 68ch; }
.post p, .post li { line-height: 1.85; }
.post h2, .post h3 { font-family: "Fraunces", Georgia, serif; margin-top: 2.5rem; letter-spacing: -0.02em; }
.post img { border-radius: 10px; max-width: 100%; }
.post blockquote { border-left: 3px solid var(--accent); color: var(--muted); padding-left: 1.25rem; margin-left: 0; font-style: italic; }

/* --- Code ----------------------------------------------------------------- */

pre {
  background: #1a1a1a;
  color: #f0ede8;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

code { font-family: ui-monospace, Menlo, monospace; font-size: 0.875em; }

:not(pre) > code {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 4px;
  padding: 0.12em 0.4em;
}

/* --- Footer --------------------------------------------------------------- */

.site-footer {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.footer-links { display: flex; gap: 1.25rem; }
.footer-links a { color: var(--muted); text-decoration: none; transition: color 0.15s ease; text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.06em; }
.footer-links a:hover { color: var(--accent); }

/* --- Responsive ----------------------------------------------------------- */

@media (max-width: 600px) {
  .site-header { padding: 1.25rem 1.25rem 0.75rem; }
  main { padding: 1.5rem 1.25rem 3rem; }
  .cover-body { padding: 1.5rem; }
  .cover-title { font-size: 1.4rem; }
}