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

:root {
  --bg: #fafaf8;
  --fg: #0f0f0f;
  --accent: #c0392b;
  --muted: #6b6b6b;
  --border: #e2e2e0;
  --surface: #f0f0ee;
  --serif: 'Playfair Display', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- Nav --- */
.nav {
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.nav-brand {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav-tagline {
  font-size: 0.875rem;
  color: var(--muted);
  font-style: italic;
}

/* --- Hero --- */
.hero {
  padding: 5rem 2rem 4rem;
}
.hero-inner { max-width: 900px; margin: 0 auto; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.hero-eyebrow-line {
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--accent);
}
.hero-eyebrow-text {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-headline {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 600px;
  line-height: 1.65;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat-number {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.35rem;
  letter-spacing: 0.02em;
}
.hero-stat-divider {
  width: 1px;
  height: 3rem;
  background: var(--border);
}

/* --- Sections shared --- */
.section-heading {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.section-sub {
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
}

/* --- Graveyard --- */
.graveyard { padding: 5rem 2rem; background: var(--surface); }
.graveyard-inner { max-width: 900px; margin: 0 auto; }

.graveyard-issue-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
}
.graveyard-issue-rule {
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--accent);
}
.graveyard-issue-text {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.failure-entry { padding: 2rem 0; }
.failure-divider { border: none; border-top: 1px solid var(--border); }

.failure-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}
.failure-number {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 900;
  color: var(--border);
  line-height: 1;
  min-width: 2.5rem;
}
.failure-meta {}
.failure-name {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
  color: var(--fg);
}
.failure-tagline {
  font-size: 0.875rem;
  color: var(--muted);
  font-style: italic;
}

.failure-body { margin-bottom: 2rem; }
.failure-body p {
  font-size: 1rem;
  color: var(--fg);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.failure-body p:last-child { margin-bottom: 0; }
.failure-body em { font-style: italic; }
.failure-body a {
  color: var(--accent);
  text-decoration: underline;
}
.failure-body a:hover { text-decoration: none; }

.failure-analysis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.failure-analysis-block {
  padding: 1.25rem 1.25rem 1.25rem 1.5rem;
  border-left: 3px solid var(--border);
}
.failure-analysis-block--wrong { border-left-color: var(--muted); }
.failure-analysis-block--lesson { border-left-color: var(--accent); }
.failure-analysis-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.failure-analysis-block p {
  font-size: 0.9rem;
  color: var(--fg);
  line-height: 1.55;
}

.failure-sources {
  font-size: 0.8rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}
.failure-sources-label { font-weight: 600; }
.failure-sources-sep { margin: 0 0.25rem; }
.failure-sources a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.failure-sources a:hover { border-bottom: none; }

.graveyard-closing-note {
  padding-top: 2.5rem;
  border-top: 2px solid var(--fg);
  margin-top: 0.5rem;
}
.graveyard-closing-note p {
  font-size: 1rem;
  color: var(--fg);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.graveyard-closing-note p:last-child { margin-bottom: 0; }
.graveyard-closing-note strong { font-weight: 600; }

/* --- Format --- */
.format { padding: 5rem 2rem; }
.format-inner { max-width: 900px; margin: 0 auto; }

.format-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.format-card {}
.format-number {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--border);
  display: block;
  line-height: 1;
  margin-bottom: 1rem;
}
.format-card-title {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.format-card-body {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
}

/* --- Manifesto --- */
.manifesto { padding: 5rem 2rem; background: var(--fg); color: var(--bg); }
.manifesto-inner { max-width: 700px; margin: 0 auto; }

.manifesto-quote {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-style: italic;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 2rem;
  color: var(--bg);
}
.manifesto-body {
  font-size: 1rem;
  color: #a0a0a0;
  line-height: 1.75;
  margin-bottom: 1rem;
}

/* --- Closing --- */
.closing { padding: 5rem 2rem 6rem; }
.closing-inner { max-width: 900px; margin: 0 auto; }

.closing-rule {
  width: 3rem;
  height: 3px;
  background: var(--accent);
  margin-bottom: 2.5rem;
}
.closing-headline {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 1.25rem;
}
.closing-sub {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.signup-form { max-width: 480px; }
.signup-form-wrap { display: flex; gap: 0; }
.signup-input {
  flex: 1;
  padding: 0.875rem 1rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-right: none;
  background: var(--bg);
  color: var(--fg);
  outline: none;
  transition: border-color 0.15s;
}
.signup-input:focus { border-color: var(--fg); }
.signup-input::placeholder { color: var(--muted); }
.signup-btn {
  padding: 0.875rem 1.5rem;
  font-family: var(--sans);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--fg);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.signup-btn:hover { background: var(--accent); border-color: var(--accent); }
.signup-success {
  font-size: 0.95rem;
  color: var(--fg);
  font-style: italic;
  padding: 0.875rem 0;
}

/* --- Footer --- */
.footer { padding: 1.5rem 2rem; border-top: 1px solid var(--border); }
.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 1rem;
}
.footer-copy { font-size: 0.8rem; color: var(--muted); }

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero { padding: 3rem 1.5rem 2.5rem; }
  .graveyard { padding: 3rem 1.5rem; }
  .format { padding: 3rem 1.5rem; }
  .manifesto { padding: 3rem 1.5rem; }
  .closing { padding: 3rem 1.5rem 4rem; }

  .hero-stats { gap: 1.5rem; }
  .hero-stat-divider { display: none; }

  .graveyard-item { grid-template-columns: 1fr; gap: 1rem; }
  .format-grid { grid-template-columns: 1fr; gap: 2rem; }

  .nav-tagline { display: none; }
  .footer-inner { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.25rem; }
  .hero-stat-number { font-size: 2rem; }
}