/* AIKit - Warm Dark palette
   Brand-aligned with @ai_with_marina YouTube thumbnail style */

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

:root {
  --bg: #0F0E0D;
  --bg-card: rgba(255, 255, 255, 0.035);
  --bg-card-hover: rgba(255, 255, 255, 0.055);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(232, 165, 71, 0.45);
  --text: #F2F0EE;
  --text-dim: #9A9590;
  --text-muted: #B5B0AB;
  --accent: #E8A547;
  --accent-strong: #D9912F;
  --accent-glow: rgba(232, 165, 71, 0.16);
}

body {
  font-family: -apple-system, 'Helvetica Neue', 'Inter', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: inherit; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.container--narrow { max-width: 880px; }

/* Header */
.header {
  padding: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}
.logo .accent { color: var(--accent); }
.nav { display: flex; gap: 32px; }
.nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav a:hover { color: var(--text); }

/* Hero (homepage) */
.hero {
  padding: 72px 0 100px;
  position: relative;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 56px;
  align-items: start;
}
.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 600px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero-text { position: relative; z-index: 1; }
.hero-title {
  font-size: 96px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 28px;
}
.hero-title .accent { color: var(--accent); }
.hero-subtitle {
  font-size: 26px;
  font-weight: 400;
  color: var(--text-muted);
  max-width: 720px;
  line-height: 1.4;
}
.hero-personal {
  font-size: 19px;
  font-weight: 400;
  color: var(--text-dim);
  max-width: 680px;
  line-height: 1.5;
  margin-top: 22px;
}
.hero-meta {
  margin-top: 32px;
  font-size: 15px;
  color: var(--text-dim);
  display: flex;
  gap: 24px;
  align-items: center;
}
.hero-meta a {
  color: var(--accent);
  text-decoration: none;
}
.hero-meta a:hover { text-decoration: underline; }
.hero-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-dim);
}

/* Hero collage (right column) - decorative stack of covers */
.hero-collage {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 300px;
  justify-self: end;
  max-width: 340px;
}
.collage-item {
  position: absolute;
  width: 180px;
  aspect-ratio: 1/1;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.42),
              0 4px 10px rgba(0, 0, 0, 0.28);
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.collage-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.collage-item--1 {
  bottom: 8px;
  left: 0;
  transform: rotate(-7deg);
  z-index: 1;
}
.collage-item--2 {
  bottom: 52px;
  left: 70px;
  transform: rotate(2deg);
  z-index: 2;
}
.collage-item--3 {
  bottom: 96px;
  left: 138px;
  transform: rotate(8deg);
  z-index: 3;
}
.hero-collage:hover .collage-item--1 {
  transform: rotate(-12deg) translateX(-12px) translateY(6px);
}
.hero-collage:hover .collage-item--3 {
  transform: rotate(13deg) translateX(12px) translateY(-6px);
}

/* Section header */
.section-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}
.section-h {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.section-h::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Catalog grid */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 80px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all 0.2s;
  cursor: pointer;
  min-height: 240px;
  text-decoration: none;
  color: inherit;
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.card-type {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--accent);
}
.card-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  flex: 1;
}
.card-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.5;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.card-format {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}
.card-cta {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Item page - breadcrumb */
.breadcrumb {
  padding: 16px 0 8px;
  font-size: 14px;
  color: var(--text-dim);
}
.breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep {
  margin: 0 10px;
  color: var(--text-dim);
  opacity: 0.5;
}

/* Item hero */
.item-hero {
  padding: 24px 0 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.item-hero-text {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.item-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--accent);
}
.item-meta .sep { color: var(--text-dim); opacity: 0.5; }
.item-meta .num {
  color: var(--text-dim);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.item-title {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.04;
  color: var(--text);
}
.item-title .accent { color: var(--accent); }
.item-subtitle {
  font-size: 22px;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.45;
}
.item-cover {
  aspect-ratio: 1/1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.item-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* CTA block */
.cta-block {
  padding: 0 0 72px;
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--accent);
  color: #0F0E0D;
  font-size: 17px;
  font-weight: 700;
  padding: 18px 32px;
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.15s;
  border: none;
  cursor: pointer;
  letter-spacing: -0.005em;
}
.btn-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}
.cta-meta {
  font-size: 14px;
  color: var(--text-dim);
}
.cta-meta strong {
  color: var(--text-muted);
  font-weight: 600;
}
.btn-disabled {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 17px;
  font-weight: 700;
  padding: 18px 32px;
  border-radius: 12px;
  cursor: not-allowed;
}
.coming-soon-msg {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.5;
}
.coming-soon-msg a {
  color: var(--accent);
  text-decoration: none;
}
.coming-soon-msg a:hover { text-decoration: underline; }
.card-cta--soon { color: var(--text-dim); }
.card--soon { opacity: 0.72; }
.card--soon:hover { opacity: 1; }

/* Content sections */
.content-section { padding: 24px 0 48px; }
.content-block {
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 760px;
}
.content-block p { margin-bottom: 18px; }
.content-block p:last-child { margin-bottom: 0; }
.content-block strong {
  color: var(--text);
  font-weight: 600;
}
.content-block a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.content-block ul {
  margin: 12px 0 18px;
  padding-left: 0;
  list-style: none;
}
.content-block li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 10px;
}
.content-block li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Related */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card-sm {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.2s;
  cursor: pointer;
  min-height: 160px;
  text-decoration: none;
  color: inherit;
}
.card-sm:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.card-sm-type {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--accent);
}
.card-sm-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  flex: 1;
}
.card-sm-cta {
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--text-dim);
}
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
}
.footer-links a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 1024px) {
  .catalog-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; gap: 48px; }
  .hero-collage { justify-self: start; max-width: 340px; height: 300px; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .hero { padding: 48px 0 60px; }
  .hero-title { font-size: 64px; }
  .hero-subtitle { font-size: 22px; }
  .hero-personal { font-size: 17px; }
  .item-hero {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 16px 0 40px;
  }
  .item-title { font-size: 40px; }
  .item-subtitle { font-size: 19px; }
  .catalog-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-grid { grid-template-columns: 1fr; }
  .header { padding: 20px 0; }
  .nav { gap: 20px; }
  .footer { flex-direction: column; gap: 16px; padding: 32px 0; text-align: center; }
}