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

:root {
  --orange: #F97316;
  --orange-dark: #EA580C;
  --orange-light: #FED7AA;
  --amber-bg: #FFFBEB;
  --dark: #1C1917;
  --dark-mid: #292524;
  --gray-700: #44403C;
  --gray-500: #78716C;
  --gray-300: #D6D3D1;
  --gray-100: #F5F5F4;
  --white: #FFFFFF;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--white);
  color: var(--dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-100);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-family: 'Archivo Black', sans-serif;
  font-size: 22px;
  color: var(--dark);
  letter-spacing: -0.5px;
}
.nav-tagline {
  font-size: 13px;
  color: var(--gray-500);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ── Hero ── */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px 60px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  min-height: 70vh;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--amber-bg);
  border: 1px solid var(--orange-light);
  border-radius: 99px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--orange-dark);
  margin-bottom: 28px;
  width: fit-content;
}
.label-dot {
  width: 7px;
  height: 7px;
  background: var(--orange);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}
.hero-headline {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(52px, 6vw, 80px);
  line-height: 1.05;
  color: var(--dark);
  letter-spacing: -2px;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 17px;
  color: var(--gray-700);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; }
.stat-value {
  font-family: 'Archivo Black', sans-serif;
  font-size: 22px;
  color: var(--orange);
  letter-spacing: -0.5px;
}
.stat-label {
  font-size: 12px;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  margin-top: 2px;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--gray-300);
}

/* Heat visual */
.hero-heat-visual {
  position: relative;
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.heat-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid var(--orange);
  opacity: 0.2;
}
.heat-ring-1 { width: 120px; height: 120px; animation: ring-pulse 3s infinite ease-out; }
.heat-ring-2 { width: 160px; height: 160px; animation: ring-pulse 3s infinite 0.5s ease-out; }
.heat-ring-3 { width: 200px; height: 200px; animation: ring-pulse 3s infinite 1s ease-out; }
@keyframes ring-pulse {
  0% { opacity: 0.25; transform: scale(0.9); }
  50% { opacity: 0.1; }
  100% { opacity: 0; transform: scale(1.1); }
}
.heat-center {
  width: 80px;
  height: 80px;
  background: var(--amber-bg);
  border: 1.5px solid var(--orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.heat-icon svg { width: 40px; height: 40px; }

/* ── How it works ── */
.how-it-works { background: var(--gray-100); }
.how-inner { max-width: 1200px; margin: 0 auto; padding: 80px 24px; }
.section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--orange);
  margin-bottom: 12px;
}
.section-heading {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(28px, 4vw, 42px);
  color: var(--dark);
  letter-spacing: -1px;
  margin-bottom: 48px;
  line-height: 1.1;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  overflow: hidden;
}
.step {
  padding: 36px 32px;
  border-right: 1px solid var(--gray-300);
  position: relative;
}
.step:last-child { border-right: none; }
.step-number {
  font-family: 'Archivo Black', sans-serif;
  font-size: 48px;
  color: var(--orange-light);
  line-height: 1;
  margin-bottom: 20px;
}
.step-content h3 {
  font-family: 'Archivo Black', sans-serif;
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.step-content p { font-size: 14px; color: var(--gray-700); line-height: 1.6; }

/* ── Who it's for ── */
.who { background: var(--white); }
.who-inner { max-width: 1200px; margin: 0 auto; padding: 80px 24px; }
.personas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.persona {
  padding: 36px;
  border-radius: 16px;
  border: 1px solid var(--gray-100);
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.persona:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.07); }
.persona-icon { margin-bottom: 20px; }
.persona-icon svg { width: 40px; height: 40px; }
.persona h3 {
  font-family: 'Archivo Black', sans-serif;
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.persona p { font-size: 14px; color: var(--gray-700); line-height: 1.65; }

/* ── Revenue streams ── */
.revenue { background: var(--dark); color: var(--white); }
.revenue-inner { max-width: 1200px; margin: 0 auto; padding: 80px 24px; }
.revenue .section-heading { color: var(--white); }
.streams-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.stream {
  background: var(--dark-mid);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid rgba(255,255,255,0.06);
}
.stream-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 20px;
}
.stream-badge-primary { background: var(--orange); color: var(--white); }
.stream-badge-warm { background: rgba(249,115,22,0.15); color: var(--orange-light); }
.stream-badge-dark { background: rgba(255,255,255,0.08); color: var(--gray-300); }
.stream-number {
  font-family: 'Archivo Black', sans-serif;
  font-size: 32px;
  color: var(--orange);
  margin-bottom: 12px;
  letter-spacing: -1px;
}
.stream-desc { font-size: 14px; color: var(--gray-300); line-height: 1.6; margin-bottom: 12px; }
.stream-desc strong { color: var(--white); }
.stream-calc {
  font-size: 12px;
  color: var(--gray-500);
  font-family: 'DM Sans', monospace;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.revenue-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--orange);
  border-radius: 12px;
  padding: 24px 32px;
}
.total-label { font-size: 14px; font-weight: 600; color: rgba(255,255,255,0.7); }
.total-value {
  font-family: 'Archivo Black', sans-serif;
  font-size: 36px;
  color: var(--white);
  letter-spacing: -1px;
}

/* ── Vision ── */
.vision { background: var(--amber-bg); }
.vision-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 64px;
  align-items: center;
}
.vision-text h2 {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(26px, 3.5vw, 38px);
  color: var(--dark);
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
}
.vision-text p {
  font-size: 16px;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: 14px;
}
.vision-startup {
  background: var(--white);
  border: 1.5px solid var(--orange-light);
  border-radius: 16px;
  padding: 32px;
}
.startup-header {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--orange);
  margin-bottom: 8px;
}
.startup-range {
  font-family: 'Archivo Black', sans-serif;
  font-size: 28px;
  color: var(--dark);
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}
.startup-items { list-style: none; }
.startup-items li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 14px;
}
.startup-items li:last-child { border-bottom: none; }
.startup-items li span { color: var(--orange); font-weight: 600; }

/* ── Footer ── */
.footer { background: var(--dark); }
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-logo {
  font-family: 'Archivo Black', sans-serif;
  font-size: 20px;
  color: var(--white);
  display: block;
  margin-bottom: 4px;
}
.footer-tagline { font-size: 13px; color: var(--gray-500); }
.footer-meta { font-size: 12px; color: var(--gray-500); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-heat-visual { display: none; }
  .steps-grid { grid-template-columns: 1fr; }
  .step { border-right: none; border-bottom: 1px solid var(--gray-300); }
  .step:last-child { border-bottom: none; }
  .personas { grid-template-columns: 1fr; }
  .streams-grid { grid-template-columns: 1fr; }
  .vision-inner { grid-template-columns: 1fr; }
  .revenue-total { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 600px) {
  .hero { padding: 48px 20px 40px; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stat-divider { display: none; }
  .how-inner, .who-inner, .revenue-inner, .vision-inner { padding: 60px 20px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}