/* ============================================================
   Kadath CMS — Design System
   Dark, atmospheric, Lovecraftian lifestyle blog
   Cinzel (display) + Cormorant Garamond (serif) + Crimson Pro (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400;1,600&family=Cinzel:wght@400;600&family=Crimson+Pro:ital,wght@0,400;0,600;1,400&display=swap');

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Design tokens ── */
:root {
  --bg-void:        #07060a;
  --bg-deep:        #0a0910;
  --bg-base:        #0d0b14;
  --bg-surface:     #11101a;
  --bg-raised:      #161424;

  --border-faint:   #1a1628;
  --border-dim:     #241e38;
  --border-mid:     #332a4a;
  --border-bright:  #4a3a6a;

  --text-bright:    #ede0c8;
  --text-main:      #c9b89a;
  --text-muted:     #8a7860;
  --text-faint:     #504030;
  --text-ghost:     #352a20;

  --accent:         #b88fe8;
  --accent-dim:     #7a4aaa;
  --accent-faint:   #3a1a5a;

  --warm:           #c9a86c;
  --warm-dim:       #8a6a38;
  --warm-faint:     #3a2a10;

  --font-display:   'Cinzel', Georgia, serif;
  --font-serif:     'Cormorant Garamond', Georgia, serif;
  --font-body:      'Crimson Pro', Georgia, serif;

  --max-width:      780px;
  --header-h:       64px;
}

/* ── Base ── */
html { font-size: 18px; scroll-behavior: smooth; }

body {
  background: var(--bg-void);
  color: var(--text-main);
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Star field canvas */
#kadath-stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.k-star {
  position: absolute;
  border-radius: 50%;
  animation: k-twinkle var(--d) infinite var(--delay) ease-in-out;
  opacity: 0;
}
.k-star--white  { background: #fff; }
.k-star--purple { background: #c0a0f0; }
.k-star--warm   { background: #e8c880; }

@keyframes k-twinkle {
  0%, 100% { opacity: 0; transform: scale(0.8); }
  50%       { opacity: var(--op); transform: scale(1); }
}

/* Purple nebula glow */
body::before {
  content: '';
  position: fixed;
  top: -20vh; left: 50%;
  transform: translateX(-50%);
  width: 140vw; height: 65vh;
  background: radial-gradient(ellipse at center,
    rgba(100, 40, 160, 0.1) 0%,
    rgba(60, 20, 100, 0.05) 40%,
    transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Film grain */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  color: var(--text-bright);
  letter-spacing: 0.04em;
}

a { color: var(--accent); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--text-bright); }

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

/* ── Layout shell ── */
.site-wrap {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
  flex: 1;
}

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-h);
  background: rgba(7, 6, 10, 0.92);
  border-bottom: 1px solid var(--border-faint);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--accent-dim) 30%,
    var(--accent) 50%,
    var(--accent-dim) 70%,
    transparent 100%);
  opacity: 0.5;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.4em;
  color: var(--text-bright);
  text-decoration: none;
  flex-shrink: 0;
  text-shadow: 0 0 30px rgba(140, 70, 200, 0.3);
  transition: color 0.3s, text-shadow 0.3s;
}
.site-logo:hover {
  color: var(--accent);
  text-shadow: 0 0 40px rgba(140, 70, 200, 0.55);
}

/* Desktop nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.site-nav a {
  font-family: var(--font-display);
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0.4rem 0.8rem;
  text-decoration: none;
  transition: color 0.3s;
  position: relative;
}
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; right: 50%;
  height: 1px;
  background: var(--accent);
  transition: left 0.3s, right 0.3s;
}
.site-nav a:hover        { color: var(--accent); }
.site-nav a:hover::after { left: 0.8rem; right: 0.8rem; }
.site-nav a.active        { color: var(--accent); }
.site-nav a.active::after { left: 0.8rem; right: 0.8rem; }

/* Hamburger — hidden on desktop */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-dim);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.45rem 0.65rem;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1px;
  background: currentColor;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile nav drawer */
.site-nav--mobile {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: rgba(10, 9, 16, 0.97);
  border-bottom: 1px solid var(--border-mid);
  padding: 1rem 1.5rem 1.5rem;
  flex-direction: column;
  z-index: 199;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.site-nav--mobile.open { display: flex; }
.site-nav--mobile a {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-faint);
  text-decoration: none;
  transition: color 0.25s;
}
.site-nav--mobile a:last-child { border-bottom: none; }
.site-nav--mobile a:hover,
.site-nav--mobile a.active { color: var(--accent); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--border-faint);
  margin-bottom: 3.5rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  left: -1.5rem;
  top: 4rem; bottom: 3rem;
  width: 1px;
  background: linear-gradient(to bottom,
    transparent, var(--accent-dim) 40%, var(--accent-dim) 60%, transparent);
  opacity: 0.35;
}

.hero__eyebrow {
  font-family: var(--font-display);
  font-size: 0.52rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 2rem; height: 1px;
  background: var(--accent-dim);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 400;
  color: var(--text-bright);
  line-height: 1.18;
  letter-spacing: 0.04em;
  margin-bottom: 1.5rem;
  text-shadow: 0 0 60px rgba(140, 70, 200, 0.15);
}

.hero__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* ============================================================
   SECTION LABEL
   ============================================================ */
.section-label {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 2rem;
}
.section-label__text {
  font-family: var(--font-display);
  font-size: 0.52rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--text-ghost);
  white-space: nowrap;
  font-weight: 400;
}
.section-label__line {
  flex: 1; height: 1px;
  background: linear-gradient(to right, var(--border-dim), transparent);
}

/* ============================================================
   POST CARDS
   ============================================================ */
.post-list { display: flex; flex-direction: column; }

.post-card {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-faint);
  position: relative;
  transition: border-color 0.3s;
}
.post-card:first-of-type { border-top: 1px solid var(--border-faint); }
.post-card:hover { border-bottom-color: var(--border-dim); }

.post-card::before {
  content: '';
  position: absolute;
  left: -1.5rem;
  top: 2rem; bottom: 2rem;
  width: 1px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s ease;
  opacity: 0.6;
}
.post-card:hover::before { transform: scaleY(1); }

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}
.post-card__meta time {
  font-family: var(--font-display);
  font-size: 0.52rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-ghost);
}

.post-card__title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 300;
  line-height: 1.3;
  margin-bottom: 0.6rem;
}
.post-card__title a { color: var(--text-main); transition: color 0.3s; }
.post-card__title a:hover { color: var(--text-bright); }

.post-card__excerpt {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 0.8rem;
}
.post-card__tags { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* ============================================================
   TAGS
   ============================================================ */
.tag {
  font-family: var(--font-display);
  font-size: 0.48rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  padding: 3px 10px 2px;
  border: 1px solid var(--accent-faint);
  color: var(--accent-dim);
  transition: border-color 0.25s, color 0.25s;
}
.tag:hover { border-color: var(--accent-dim); color: var(--accent); }

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border-faint);
  margin-bottom: 3rem;
}
.page-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--text-bright);
  margin-bottom: 0.6rem;
  text-shadow: 0 0 40px rgba(140, 70, 200, 0.1);
}
.page-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ============================================================
   FULL POST
   ============================================================ */
.post-full__header {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border-faint);
  margin-bottom: 3rem;
}

.post-full__date {
  font-family: var(--font-display);
  font-size: 0.52rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}
.post-full__date::before {
  content: '';
  display: block;
  width: 1.5rem; height: 1px;
  background: var(--accent);
}

.post-full__title {
  font-size: clamp(1.9rem, 4.5vw, 2.8rem);
  color: var(--text-bright);
  line-height: 1.15;
  margin-bottom: 1rem;
  text-shadow: 0 0 50px rgba(140, 70, 200, 0.12);
}

.post-full__subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.post-full__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.post-full__footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-faint);
}

/* ============================================================
   PROSE
   ============================================================ */
.prose {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-main);
}

.prose > * + * { margin-top: 1.5rem; }
.prose p { margin-bottom: 0; }

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-bright);
  letter-spacing: 0.06em;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-faint);
}

.prose h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-style: italic;
  font-weight: 300;
  color: var(--text-bright);
  margin-top: 2.5rem;
  margin-bottom: 0.8rem;
}

.prose a {
  color: var(--accent);
  border-bottom: 1px solid var(--accent-faint);
  transition: color 0.25s, border-color 0.25s;
}
.prose a:hover { color: var(--text-bright); border-color: var(--accent); }

.prose em     { color: var(--warm); font-style: italic; }
.prose strong { color: var(--text-bright); font-weight: 600; }

.prose ul, .prose ol { padding-left: 1.5rem; }
.prose li + li { margin-top: 0.4rem; }
.prose li::marker { color: var(--accent-dim); }

.prose blockquote {
  border-left: 1px solid var(--accent-dim);
  padding: 0.5rem 0 0.5rem 1.8rem;
  color: var(--text-muted);
  font-style: italic;
  font-size: 1.05rem;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border-faint);
  margin: 3rem 0;
  position: relative;
}
.prose hr::before {
  content: '· · ·';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-void);
  padding: 0 1rem;
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.5em;
  color: var(--text-ghost);
}

.prose code {
  font-size: 0.82em;
  background: var(--bg-raised);
  border: 1px solid var(--border-dim);
  padding: 1px 6px;
  color: var(--accent);
}

.prose pre {
  background: var(--bg-raised);
  border: 1px solid var(--border-dim);
  padding: 1.4rem;
  overflow-x: auto;
  margin: 2rem 0;
}
.prose pre code { background: none; border: none; padding: 0; color: var(--text-main); }

/* ============================================================
   UTILITY
   ============================================================ */
.btn-link {
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent-dim);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
  transition: color 0.3s;
}
.btn-link::after {
  content: '';
  display: block;
  width: 1.5rem; height: 1px;
  background: currentColor;
  transition: width 0.3s;
}
.btn-link:hover { color: var(--accent); }
.btn-link:hover::after { width: 2.5rem; }

.empty {
  font-style: italic;
  color: var(--text-ghost);
  padding: 2rem 0;
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  position: relative;
  border-top: 1px solid var(--border-faint);
  background: var(--bg-deep);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60%; height: 1px;
  background: linear-gradient(90deg,
    transparent,
    var(--accent-dim) 30%,
    var(--accent) 50%,
    var(--accent-dim) 70%,
    transparent);
  opacity: 0.4;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-footer__logo {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--text-ghost);
}

.site-footer__ornament {
  font-family: var(--font-display);
  font-size: 0.5rem;
  letter-spacing: 0.4em;
  color: var(--accent-faint);
}

.site-footer__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.88rem;
  color: var(--text-ghost);
  flex: 1;
}

.site-footer__copy {
  font-family: var(--font-display);
  font-size: 0.52rem;
  letter-spacing: 0.25em;
  color: var(--text-ghost);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 768px) {
  :root { --header-h: 56px; }
  html { font-size: 17px; }
  .container { padding: 2rem 1.25rem 3rem; }
  .hero { padding: 3.5rem 0 2.5rem; margin-bottom: 2.5rem; }
  .hero::before { display: none; }
  .hero__title { font-size: clamp(1.7rem, 5vw, 2.4rem); }
  .post-card::before { display: none; }
  .post-full__title { font-size: clamp(1.6rem, 5vw, 2.2rem); }
  .page-title { font-size: clamp(1.5rem, 5vw, 2rem); }
}

/* Mobile */
@media (max-width: 600px) {
  html { font-size: 16px; }

  /* Swap desktop nav for hamburger */
  .site-nav { display: none; }
  .nav-toggle { display: flex; }

  .container { padding: 1.5rem 1rem 2.5rem; }
  .hero { padding: 2.5rem 0 2rem; margin-bottom: 2rem; }
  .hero__title { line-height: 1.25; }
  .post-card { padding: 1.4rem 0; }
  .post-card__title { font-size: 1.2rem; }
  .post-full__header { padding: 2rem 0 1.5rem; margin-bottom: 2rem; }
  .post-full__title { font-size: clamp(1.5rem, 6vw, 2rem); }
  .post-full__subtitle { font-size: 1rem; }
  .prose { font-size: 1rem; line-height: 1.85; }
  .prose h2 { font-size: 1rem; }
  .page-header { padding: 2rem 0 1.5rem; margin-bottom: 2rem; }
  .page-title { font-size: clamp(1.4rem, 6vw, 1.8rem); }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 2rem 1rem;
  }
  .site-footer__tagline { flex: none; }
  .site-footer__ornament { display: none; }
}

/* Very small */
@media (max-width: 380px) {
  html { font-size: 15px; }
  .hero__title { font-size: 1.6rem; }
  .site-logo { font-size: 0.85rem; letter-spacing: 0.3em; }
}