:root {
  --slate-950: #0a0f1e;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-50: #f8fafc;
  --amber-500: #f59e0b;
  --amber-400: #fbbf24;
  --amber-100: #fef3c7;
  --emerald-500: #10b981;
  --emerald-100: #d1fae5;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--slate-950);
  color: var(--slate-200);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--slate-50);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  gap: 2rem;
}
.nav-links a {
  color: var(--slate-400);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--slate-50); }

/* HERO */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 8rem 4rem 6rem;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-grid { display: flex; flex-direction: column; gap: 2rem; }
.hero-badge {
  display: inline-block;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: var(--amber-500);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.375rem 0.875rem;
  border-radius: 2rem;
  width: fit-content;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4.5vw, 3.75rem);
  color: var(--slate-50);
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--slate-400);
  line-height: 1.7;
  max-width: 480px;
  font-weight: 300;
}
.hero-stats {
  display: flex;
  gap: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}
.hero-stat { display: flex; flex-direction: column; gap: 0.25rem; }
.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--amber-500);
  line-height: 1;
}
.hero-stat-label { font-size: 0.75rem; color: var(--slate-400); letter-spacing: 0.02em; }

/* HERO CARD VISUAL */
.hero-visual { display: flex; justify-content: flex-end; align-items: center; }
.hero-card-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  width: 100%;
  max-width: 360px;
}
.hero-card {
  background: var(--slate-800);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.03) inset;
}
.hero-card-1 { transform: translateX(-8px); }
.hero-card-2 { transform: translateX(-16px); }
.hero-card-3 { transform: translateX(-24px); opacity: 0.9; }
.card-label { font-size: 0.6875rem; color: var(--slate-400); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.5rem; }
.card-value { font-family: var(--font-display); font-size: 2.5rem; color: var(--slate-50); line-height: 1; }
.card-sub { font-size: 0.8125rem; color: var(--slate-400); margin-top: 0.25rem; }
.card-bar { height: 4px; background: var(--slate-700); border-radius: 2px; margin-top: 1rem; overflow: hidden; }
.card-bar-fill { height: 100%; background: var(--amber-500); border-radius: 2px; }
.card-badge { display: inline-block; font-size: 0.6875rem; font-weight: 600; padding: 0.2rem 0.6rem; border-radius: 2rem; margin-top: 0.5rem; }
.card-badge-green { background: rgba(16, 185, 129, 0.15); color: var(--emerald-500); }
.card-list { display: flex; flex-direction: column; gap: 0.6rem; margin-top: 0.5rem; }
.card-list-item { font-size: 0.8125rem; color: var(--slate-200); display: flex; align-items: center; gap: 0.5rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--emerald-500); }
.dot-amber { background: var(--amber-500); }

/* SECTIONS */
.section-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-500);
  margin-bottom: 1.25rem;
}
.section-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: var(--slate-50);
  line-height: 1.1;
  letter-spacing: -0.015em;
  max-width: 700px;
}
.section-body {
  font-size: 1.0625rem;
  color: var(--slate-400);
  line-height: 1.75;
  max-width: 640px;
  margin-top: 1.25rem;
  font-weight: 300;
}

/* THE PROBLEM */
.the-problem {
  background: var(--slate-900);
  padding: 7rem 4rem;
  border-top: 1px solid rgba(148, 163, 184, 0.07);
  border-bottom: 1px solid rgba(148, 163, 184, 0.07);
}
.problem-inner { max-width: 1200px; margin: 0 auto; }
.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
}
.problem-card {
  background: var(--slate-800);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 1.25rem;
  padding: 2rem;
}
.problem-icon { font-size: 0.75rem; color: var(--amber-500); margin-bottom: 1rem; letter-spacing: 0.2em; }
.problem-card h3 { font-size: 1.125rem; font-weight: 600; color: var(--slate-50); margin-bottom: 0.75rem; }
.problem-card p { font-size: 0.9375rem; color: var(--slate-400); line-height: 1.65; }

/* THE PLATFORM */
.the-platform {
  padding: 7rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.platform-feature {
  background: var(--slate-900);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 1rem;
  padding: 1.75rem;
  transition: border-color 0.2s;
}
.platform-feature:hover { border-color: rgba(245, 158, 11, 0.3); }
.pf-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.875rem; }
.pf-icon { font-size: 0.5rem; color: var(--amber-500); }
.platform-feature h3 { font-size: 1rem; font-weight: 600; color: var(--slate-50); }
.platform-feature p { font-size: 0.875rem; color: var(--slate-400); line-height: 1.6; }

/* WORKFLOWS */
.workflows {
  background: var(--slate-900);
  padding: 7rem 4rem;
  border-top: 1px solid rgba(148, 163, 184, 0.07);
  border-bottom: 1px solid rgba(148, 163, 184, 0.07);
}
.workflows-inner { max-width: 1200px; margin: 0 auto; }
.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
  position: relative;
}
.workflow-steps::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, var(--amber-500), transparent);
  opacity: 0.3;
}
.wf-step { display: flex; flex-direction: column; gap: 1.25rem; }
.wf-num { font-family: var(--font-display); font-size: 3rem; color: var(--amber-500); line-height: 1; opacity: 0.8; }
.wf-content h3 { font-size: 1.0625rem; font-weight: 600; color: var(--slate-50); margin-bottom: 0.75rem; }
.wf-content p { font-size: 0.875rem; color: var(--slate-400); line-height: 1.6; }

/* WHO IT'S FOR */
.who-its-for { padding: 7rem 4rem; max-width: 1200px; margin: 0 auto; }
.who-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}
.who-card {
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 1.25rem;
  padding: 2.25rem;
  background: var(--slate-900);
  position: relative;
  overflow: hidden;
}
.who-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--amber-500);
}
.who-icon { font-size: 0.5rem; color: var(--amber-500); margin-bottom: 1.25rem; }
.who-card h3 { font-size: 1.125rem; font-weight: 600; color: var(--slate-50); margin-bottom: 0.875rem; }
.who-card p { font-size: 0.9375rem; color: var(--slate-400); line-height: 1.65; }

/* MANIFESTO */
.manifesto {
  background: var(--slate-900);
  padding: 7rem 4rem;
  border-top: 1px solid rgba(148, 163, 184, 0.07);
  border-bottom: 1px solid rgba(148, 163, 184, 0.07);
}
.manifesto-inner { max-width: 900px; margin: 0 auto; }
.manifesto-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: var(--slate-50);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin-bottom: 1.75rem;
}
.manifesto-body {
  font-size: 1.125rem;
  color: var(--slate-400);
  line-height: 1.8;
  font-weight: 300;
}

/* FOOTER */
.footer {
  padding: 3.5rem 4rem;
  border-top: 1px solid rgba(148, 163, 184, 0.07);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo { font-family: var(--font-display); font-size: 1.5rem; color: var(--slate-50); }
.footer-brand p { font-size: 0.875rem; color: var(--slate-400); margin-top: 0.5rem; }
.footer-tagline { font-size: 0.875rem; color: var(--slate-400); font-style: italic; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 7rem 2rem 4rem; }
  .hero-visual { justify-content: flex-start; }
  .hero-card-stack { max-width: 100%; }
  .problem-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .workflow-steps { grid-template-columns: repeat(2, 1fr); }
  .workflow-steps::before { display: none; }
  .who-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
  .footer-inner { flex-direction: column; gap: 1.5rem; text-align: center; }
}
@media (max-width: 600px) {
  .platform-grid { grid-template-columns: 1fr; }
  .workflow-steps { grid-template-columns: 1fr; }
  .the-problem, .the-platform, .workflows, .who-its-for, .manifesto, .footer { padding: 5rem 2rem; }
}