/* =============================================
   Smart Monke — Stamped Index Card
   One typeface, one accent, hard edges, no shadows.
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Tokens ─────────────────────────────────── */
:root {
  --bg:          #F7F5F0;
  --card:        #FFFFFF;
  --ink:         #111111;
  --ink-soft:    #5A5A54;
  --line:        #111111;
  --line-soft:   #D8D4C8;

  --accent:      #FF4B1F;
  --accent-ink:  #FFF3EE;

  --font-display: 'Space Grotesk', sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  --max-w:      720px;
  --max-w-wide: 960px;
}

/* ── Reset ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration: none; }

img { max-width: 100%; display: block; }

/* ── Layout ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Navigation ─────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 2px solid var(--line);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 1.5rem;
  gap: 1rem;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.nav__logo-icon {
  width: 26px;
  height: 26px;
  background: var(--ink);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav__links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a.active { color: var(--accent); }

/* ── Hero ───────────────────────────────────── */
.hero {
  padding: 4rem 1.5rem 2.5rem;
  max-width: var(--max-w-wide);
  margin: 0 auto;
}

.hero__eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 1.1rem;
}

.hero__title strong { color: var(--accent); }

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 480px;
  line-height: 1.6;
}

/* ── Section label ──────────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--line);
}

/* ── Post Grid ──────────────────────────────── */
.posts-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ── Post Card ──────────────────────────────── */
.post-card {
  position: relative;
  background: var(--card);
  border: 2px solid var(--line);
  padding: 1.5rem 1.75rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  color: inherit;
}
.post-card:hover { border-color: var(--accent); }

.post-card__tag {
  position: absolute;
  top: -13px;
  left: 1.5rem;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-ink);
  background: var(--accent);
  border: 2px solid var(--line);
  padding: 0.2rem 0.6rem;
  transform: rotate(-2deg);
  width: fit-content;
}

.post-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  margin-top: 0.5rem;
}

.post-card__excerpt {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.6;
  flex: 1;
}

.post-card__meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  margin-top: 0.25rem;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--line-soft);
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
}

/* ── Featured Card ──────────────────────────── */
.post-card--featured {
  padding: 2rem 2.25rem 1.75rem;
}

.post-card--featured .post-card__title {
  font-size: 1.7rem;
}

.post-card--featured-badge {
  position: absolute;
  top: -13px;
  left: 1.5rem;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-ink);
  background: var(--accent);
  border: 2px solid var(--line);
  padding: 0.2rem 0.6rem;
  transform: rotate(-2deg);
  width: fit-content;
}

.post-card--featured .post-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* ── Blog List Page ─────────────────────────── */
.blog-list {
  padding: 3rem 0 5rem;
}

.blog-list__header {
  margin-bottom: 2.5rem;
}

.blog-list__title {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

.blog-list__subtitle {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* ── Post Page ──────────────────────────────── */
.post-page {
  padding: 3rem 0 6rem;
}

.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--line);
}

.post-header__back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 1.75rem;
}
.post-header__back:hover { color: var(--accent); }

.post-header__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-ink);
  background: var(--accent);
  border: 2px solid var(--line);
  padding: 0.2rem 0.6rem;
  margin-bottom: 1rem;
  transform: rotate(-2deg);
  width: fit-content;
}

.post-header__title {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
}

.post-header__meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  display: flex;
  gap: 1rem;
  align-items: center;
}

/* ── Prose ──────────────────────────────────── */
.prose {
  font-family: var(--font-display);
  font-size: 1.04rem;
  line-height: 1.75;
  color: var(--ink);
}

.prose h1, .prose h2, .prose h3, .prose h4 {
  color: var(--ink);
  font-weight: 700;
  margin-top: 2.1em;
  margin-bottom: 0.65em;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.prose h1 { font-size: 1.8rem; }
.prose h2 {
  font-size: 1.4rem;
  padding-bottom: 0.5em;
  border-bottom: 2px solid var(--line);
}
.prose h3 { font-size: 1.15rem; }
.prose h4 { font-size: 1rem; }

.prose p { margin-bottom: 1.4em; }

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}
.prose a:hover { opacity: 0.75; }

.prose strong { font-weight: 700; }
.prose em { font-style: italic; }

.prose ul, .prose ol {
  margin: 0.5em 0 1.4em 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.35em;
}

.prose blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.75em 0;
  padding: 0.2em 0 0.2em 1.4em;
  color: var(--ink-soft);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg);
  color: var(--ink);
  padding: 0.15em 0.4em;
  border: 1px solid var(--line-soft);
}

.prose pre {
  background: var(--ink);
  border: 2px solid var(--line);
  padding: 1.4rem 1.6rem;
  overflow-x: auto;
  margin: 1.75em 0;
}
.prose pre code {
  background: none;
  color: #F0EEE6;
  border: none;
  padding: 0;
  font-size: 0.88rem;
  line-height: 1.7;
}

.prose hr {
  border: none;
  border-top: 2px solid var(--line);
  margin: 2.5em 0;
}

.prose img {
  border: 2px solid var(--line);
  margin: 1.75em 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 1.75em 0;
  border: 2px solid var(--line);
}
.prose th {
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: left;
  padding: 0.6rem 1rem;
}
.prose td {
  padding: 0.6rem 1rem;
  border-top: 1px solid var(--line-soft);
  color: var(--ink);
}

/* ── States ─────────────────────────────────── */
.state-empty {
  text-align: center;
  padding: 5rem 1rem;
  color: var(--ink-soft);
}
.state-empty__icon { font-size: 2.4rem; margin-bottom: 0.75rem; }
.state-empty__text { font-size: 0.95rem; line-height: 1.7; }

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--line-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 4rem auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Footer ─────────────────────────────────── */
.footer {
  border-top: 2px solid var(--line);
  margin-top: 5rem;
}

.footer__inner {
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem 4rem;
  align-items: start;
}

.footer__logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.75rem;
  display: block;
  text-transform: uppercase;
}

.footer__tagline {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.65;
  max-width: 320px;
}

.footer__nav-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

.footer__nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer__nav-links a {
  font-size: 0.9rem;
  color: var(--ink);
}
.footer__nav-links a:hover { color: var(--accent); }

.footer__bottom {
  border-top: 2px solid var(--line);
  padding: 1.25rem 1.5rem;
  max-width: var(--max-w-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.footer__monke { font-size: 1.2rem; line-height: 1; }

/* ── Scroll Progress Bar (post pages) ───────── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 200;
}

/* ── Back to Top ─────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  width: 40px;
  height: 40px;
  background: var(--ink);
  color: var(--bg);
  border: 2px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  pointer-events: none;
  z-index: 150;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { background: var(--accent); border-color: var(--line); }

/* ── Focus styles ────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 640px) {
  :root { font-size: 15px; }
  .hero { padding: 3rem 1.25rem 2rem; }
  .nav__inner { padding: 0 1.25rem; }
  .nav__links { gap: 1rem; }
  .container { padding: 0 1.25rem; }
  .post-card { padding: 1.25rem 1.4rem 1.1rem; }
  .post-card--featured { padding: 1.5rem 1.5rem 1.25rem; }
  .post-card--featured .post-card__title { font-size: 1.35rem; }
  .footer__inner {
    grid-template-columns: 1fr;
    padding: 2.5rem 1.25rem 1.5rem;
    gap: 2rem;
  }
  .footer__bottom {
    flex-direction: column;
    text-align: center;
    padding: 1.25rem;
  }
  .back-to-top { bottom: 1.25rem; right: 1.25rem; }
}