:root {
  --brand: #8b1d1d;
  --brand-strong: #6f1414;
  --brand-soft: #f5e6e6;
  --ink: #1f1b1a;
  --ink-muted: #5f5653;
  --surface: #fffdfb;
  --surface-elevated: rgba(255, 255, 255, 0.82);
  --surface-soft: #f7f1ef;
  --line: rgba(102, 73, 69, 0.18);
  --success: #0f766e;
  --shadow: 0 24px 60px rgba(68, 28, 28, 0.12);
  --shadow-soft: 0 12px 32px rgba(68, 28, 28, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --container: 1180px;
  --motion-fast: 160ms;
  --motion-base: 220ms;
  --motion-ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Cairo", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(139, 29, 29, 0.12), transparent 28%),
    radial-gradient(circle at left 20%, rgba(231, 193, 193, 0.45), transparent 26%),
    linear-gradient(180deg, #fffaf8 0%, #f8f0ed 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

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

.page-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(255, 250, 248, 0.78);
  border-bottom: 1px solid rgba(111, 20, 20, 0.08);
}

.header-inner {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand) 0%, #d56262 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), var(--shadow-soft);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 18px;
}

.brand-copy strong,
.brand-copy span {
  display: block;
}

.brand-copy strong {
  font-size: 16px;
  line-height: 1.1;
}

.brand-copy span {
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1.3;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-main {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
  padding: 36px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.95fr);
  gap: 24px;
  align-items: stretch;
}

.hero-card,
.summary-card,
.section-card,
.toc-card,
.link-card,
.contact-card,
.meta-strip,
.article-card,
.mini-card {
  background: var(--surface-elevated);
  border: 1px solid rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 36px;
  border-radius: var(--radius-xl);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: auto auto -90px -80px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(139, 29, 29, 0.14) 0%, transparent 70%);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  background: rgba(139, 29, 29, 0.1);
  color: var(--brand-strong);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
}

.hero-title {
  margin: 18px 0 14px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 0;
  max-width: 68ch;
  color: var(--ink-muted);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button,
.button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 16px;
  font-size: 15px;
  font-weight: 700;
  transition:
    transform var(--motion-fast) var(--motion-ease),
    box-shadow var(--motion-fast) var(--motion-ease),
    background var(--motion-fast) var(--motion-ease),
    color var(--motion-fast) var(--motion-ease);
}

.button {
  color: #fff;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
  box-shadow: 0 18px 36px rgba(111, 20, 20, 0.2);
}

.button-ghost {
  color: var(--ink);
  border: 1px solid rgba(111, 20, 20, 0.14);
  background: rgba(255, 255, 255, 0.7);
}

.button:hover,
.button-ghost:hover {
  transform: translateY(-1px);
}

.meta-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 18px;
  border-radius: var(--radius-lg);
  margin-top: 22px;
}

.meta-strip strong,
.meta-strip span {
  display: block;
}

.meta-strip strong {
  font-size: 13px;
  color: var(--brand-strong);
}

.meta-strip span {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.7;
}

.summary-card {
  border-radius: var(--radius-xl);
  padding: 28px;
  display: grid;
  gap: 18px;
}

.summary-title {
  margin: 0;
  font-size: 22px;
}

.summary-list {
  display: grid;
  gap: 12px;
}

.summary-item {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.summary-item strong,
.summary-item span {
  display: block;
}

.summary-item strong {
  font-size: 14px;
}

.summary-item span {
  margin-top: 6px;
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.7;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: 24px;
  margin-top: 28px;
}

.toc-card {
  position: sticky;
  top: 92px;
  padding: 22px;
  border-radius: var(--radius-xl);
  align-self: start;
}

.toc-card h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

.toc-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc-list a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--ink-muted);
  transition:
    background var(--motion-fast) var(--motion-ease),
    color var(--motion-fast) var(--motion-ease),
    transform var(--motion-fast) var(--motion-ease);
}

.toc-list a:hover,
.toc-list a:focus-visible {
  background: rgba(139, 29, 29, 0.08);
  color: var(--brand-strong);
  transform: translateX(-2px);
  outline: none;
}

.article-stack {
  display: grid;
  gap: 18px;
}

.article-card {
  padding: 30px;
  border-radius: var(--radius-xl);
}

.article-card h2 {
  margin: 0 0 14px;
  font-size: 24px;
  scroll-margin-top: 104px;
}

.article-card h3 {
  margin: 20px 0 10px;
  font-size: 18px;
}

.article-card p,
.article-card li {
  color: var(--ink-muted);
  font-size: 16px;
  line-height: 1.95;
}

.article-card ul,
.article-card ol {
  margin: 0;
  padding-inline-start: 20px;
}

.section-card {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.section-card h3 {
  margin-top: 0;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.link-card {
  border-radius: var(--radius-lg);
  padding: 24px;
  transition:
    transform var(--motion-base) var(--motion-ease),
    border-color var(--motion-base) var(--motion-ease);
}

.link-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 29, 29, 0.24);
}

.link-card h3 {
  margin: 14px 0 8px;
  font-size: 24px;
}

.link-card p {
  margin: 0;
  color: var(--ink-muted);
  line-height: 1.85;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(139, 29, 29, 0.08);
  color: var(--brand-strong);
  font-size: 13px;
  font-weight: 700;
}

.contact-card {
  margin-top: 28px;
  border-radius: var(--radius-xl);
  padding: 26px;
}

.contact-card p {
  margin: 0;
  color: var(--ink-muted);
  line-height: 1.85;
}

.footer {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
  padding: 0 0 48px;
}

.footer-card {
  border-radius: var(--radius-xl);
  padding: 22px 24px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(111, 20, 20, 0.1);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.footer-copy {
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-links a {
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(139, 29, 29, 0.08);
  color: var(--brand-strong);
  font-size: 14px;
  font-weight: 700;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.mini-card {
  border-radius: 18px;
  padding: 18px;
}

.mini-card strong,
.mini-card span {
  display: block;
}

.mini-card strong {
  color: var(--brand-strong);
  font-size: 14px;
}

.mini-card span {
  margin-top: 8px;
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.8;
}

.accent-line {
  width: 64px;
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), #d88989);
  margin-bottom: 18px;
}

.fade-up {
  animation: fadeUp 520ms var(--motion-ease) both;
}

.fade-delay-1 {
  animation-delay: 60ms;
}

.fade-delay-2 {
  animation-delay: 120ms;
}

.fade-delay-3 {
  animation-delay: 180ms;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .content-grid,
  .cards-grid,
  .mini-grid,
  .meta-strip {
    grid-template-columns: 1fr;
  }

  .toc-card {
    position: static;
  }

  .hero-card,
  .summary-card,
  .article-card,
  .link-card {
    padding: 24px;
  }
}

@media (max-width: 680px) {
  .header-inner,
  .footer-card {
    align-items: flex-start;
  }

  .header-actions,
  .footer-links,
  .hero-actions {
    width: 100%;
  }

  .button,
  .button-ghost {
    width: 100%;
  }

  .page-main {
    padding-top: 24px;
  }

  .hero-title {
    font-size: 31px;
  }

  .hero-lead,
  .article-card p,
  .article-card li {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
}