/* =========================================
   BANTU — Theme CSS
   African media AI brand
   ========================================= */

:root {
  --bg: #F8F4EE;
  --bg-alt: #EFE8D8;
  --bg-dark: #0C3829;
  --fg: #0C3829;
  --fg-light: #2D5A42;
  --fg-muted: #4A7A5E;
  --accent: #C8973D;
  --accent-light: #E8C87A;
  --text-light: #FAF6EE;
  --text-muted: #7A9A82;
  --border: rgba(12, 56, 41, 0.15);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

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

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(248, 244, 238, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 40px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--fg);
  letter-spacing: -0.02em;
}

.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 40px 80px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 60px,
      rgba(12, 56, 41, 0.03) 60px,
      rgba(12, 56, 41, 0.03) 61px
    ),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 60px,
      rgba(200, 151, 61, 0.04) 60px,
      rgba(200, 151, 61, 0.04) 61px
    );
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  line-height: 1.08;
  color: var(--fg);
  margin-bottom: 32px;
  max-width: 820px;
  letter-spacing: -0.02em;
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
  font-weight: 600;
}

.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--fg-light);
  max-width: 600px;
  line-height: 1.65;
  font-weight: 300;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: stretch;
  gap: 0;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding-top: 40px;
}

.hero-stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 40px;
}

.hero-stat-divider {
  width: 1px;
  background: var(--border);
  margin: 0 40px 0 0;
  align-self: stretch;
}

.stat-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--fg);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  line-height: 1.4;
  font-weight: 400;
}

/* ---- Section Commons ---- */
.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.15;
  color: var(--fg);
  letter-spacing: -0.02em;
}

/* ---- Manifesto ---- */
.manifesto {
  background: var(--bg-dark);
  padding: 100px 40px;
}

.manifesto-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.manifesto-text {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2.2rem);
  line-height: 1.5;
  color: var(--text-light);
  font-weight: 400;
  font-style: italic;
  max-width: 860px;
}

/* ---- How It Works ---- */
.how-it-works {
  padding: 100px 40px;
  background: var(--bg);
}

.section-header {
  max-width: 1100px;
  margin: 0 auto 64px;
}

.workflow-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
}

.workflow-step {
  background: var(--bg);
  padding: 44px 40px;
  position: relative;
}

.step-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(12, 56, 41, 0.08);
  position: absolute;
  top: 20px;
  right: 28px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.step-icon {
  margin-bottom: 20px;
}

.step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--fg);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.6;
  font-weight: 300;
}

/* ---- What It Replaces ---- */
.replaces {
  padding: 100px 40px;
  background: var(--bg-alt);
}

.replaces-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.replaces-header {
  margin-bottom: 56px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
}

.comparison-col {
  background: var(--bg);
  padding: 40px;
}

.comparison-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 12px;
  display: inline-block;
  margin-bottom: 28px;
}

.old-label {
  background: rgba(12, 56, 41, 0.08);
  color: var(--fg-muted);
}

.new-label {
  background: rgba(200, 151, 61, 0.15);
  color: var(--accent);
}

.comparison-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.comparison-list li {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--fg-light);
  padding-left: 20px;
  position: relative;
}

.comparison-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
}

/* ---- Philosophy ---- */
.philosophy {
  padding: 100px 40px;
  background: var(--bg-dark);
}

.philosophy-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.philosophy-quote blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  line-height: 1.55;
  color: var(--text-light);
  font-style: italic;
  font-weight: 400;
  margin-bottom: 20px;
  border-left: 3px solid var(--accent);
  padding-left: 28px;
}

.philosophy-quote cite {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: normal;
  padding-left: 28px;
  letter-spacing: 0.02em;
}

.philosophy-body p {
  font-size: 0.97rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.philosophy-body p:last-child {
  margin-bottom: 0;
}

/* ---- Closing ---- */
.closing {
  padding: 120px 40px;
  background: var(--bg);
  text-align: center;
}

.closing-inner {
  max-width: 800px;
  margin: 0 auto;
}

.closing-headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: 1.1;
  color: var(--fg);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 1rem;
  color: var(--fg-muted);
  font-weight: 300;
}

/* ---- Footer ---- */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 40px 40px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
}

.footer-desc {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.footer-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .nav-inner { padding: 16px 24px; }
  .hero { padding: 100px 24px 60px; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .hero-stat-divider { width: 100%; height: 1px; margin: 0; }
  .workflow-grid { grid-template-columns: 1fr; }
  .comparison-grid { grid-template-columns: 1fr; }
  .philosophy-inner { grid-template-columns: 1fr; gap: 40px; }
  .manifesto, .how-it-works, .replaces, .philosophy, .closing, .footer { padding-left: 24px; padding-right: 24px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}