/* ============================================================
   ALIFF HUSSIEN — Founder & AI Systems Architect
   Obsidian Titanium Design System v3.0
   ============================================================ */

:root {
  --bg-core: #09090b;
  --bg-surface: #111114;
  --bg-surface-hover: #16161a;
  --bg-elevated: #18181c;
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.16);
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-tertiary: #52525b;
  --accent-green: #10b981;
  --accent-blue: #3b82f6;
  --accent-purple: #a855f7;
  --accent-amber: #f59e0b;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-core);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: 0 1.25rem;
  line-height: 1.6;
}

.wrapper {
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}

/* ── Top Navigation Bar ── */
header.founder-nav {
  padding: 2rem 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-symbol {
  width: 28px;
  height: 28px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.22);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--accent-green);
  flex-shrink: 0;
}

.brand-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-pill {
  font-family: var(--font-mono);
  font-size: 0.70rem;
  color: var(--text-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 0.30rem 0.65rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
}

.nav-pill:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-hover);
}

.nav-pill.active {
  color: var(--accent-green);
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.06);
}

/* ── Hero Section ── */
.hero-section {
  padding: 3.5rem 0 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-green);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text-primary);
}

.hero-bio {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 720px;
}

.hero-bio strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ── Action Quick-Bar ── */
.quick-action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding-top: 0.5rem;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.95rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  text-decoration: none;
  transition: all var(--transition);
}

.action-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.action-btn.primary {
  background: var(--text-primary);
  color: var(--bg-core);
  border-color: var(--text-primary);
  font-weight: 600;
}

.action-btn.primary:hover {
  opacity: 0.9;
  color: var(--bg-core);
}

/* ── Section Dividers ── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 3rem 0 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
}

.section-label {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-count {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

/* ── System Cards Grid ── */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}

@media (max-width: 680px) {
  .systems-grid {
    grid-template-columns: 1fr;
  }
}

.system-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.system-card:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-icon {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 7px;
  display: grid;
  place-items: center;
  color: var(--text-secondary);
}

.card-tag {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  background: rgba(255, 255, 255, 0.03);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.card-meta {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ── Timeline / Architecture Stack ── */
.stack-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.stack-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}

.stack-title {
  font-weight: 500;
  color: var(--text-primary);
}

.stack-spec {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* ── Footer ── */
footer.founder-footer {
  padding: 2.5rem 0 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
}