:root {
  --navy-950: #0a1628;
  --navy-900: #0e1f38;
  --navy-800: #142b4d;
  --navy-700: #1c3a63;
  --teal-500: #14b8a6;
  --teal-400: #2dd4bf;
  --teal-300: #5eead4;
  --ink: #0a1628;
  --paper: #f7f9fb;
  --paper-dim: #eef2f6;
  --white: #ffffff;
  --muted: #5b6b81;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 24px 60px rgba(10, 22, 40, 0.16);
  --max-width: 1140px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 249, 251, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand .mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
}

.nav-links a:hover { color: var(--ink); }

.nav-links .btn { color: white; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--navy-900);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); background: var(--navy-800); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}

.btn-ghost:hover { background: var(--white); border-color: var(--navy-700); }

.btn-teal {
  background: var(--teal-500);
  color: var(--navy-950);
}

.btn-teal:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); background: var(--teal-400); }

/* SECTIONS */
section { padding: 96px 0; }

.section-head { max-width: 640px; margin-bottom: 56px; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-500);
  background: rgba(20, 184, 166, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

h1, h2, h3 { letter-spacing: -0.02em; margin: 0; }

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 14px;
}

.section-head p { color: var(--muted); font-size: 1.05rem; margin: 0; }

.section-alt { background: var(--white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* HERO */
.hero {
  padding: 88px 0 100px;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(20, 184, 166, 0.14), transparent 60%),
    radial-gradient(800px 400px at 0% 0%, rgba(20, 184, 166, 0.08), transparent 60%),
    var(--navy-950);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  line-height: 1.12;
  margin-bottom: 22px;
}

.hero h1 .accent { color: var(--teal-300); }

.hero p.lead {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 520px;
  margin-bottom: 34px;
}

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-stats .stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: white;
}

.hero-stats .stat-label {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 2px;
}

.hero-visual {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(6px);
}

.flow-card {
  background: rgba(10, 22, 40, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.flow-card:last-child { margin-bottom: 0; }

.flow-card .num {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(20, 184, 166, 0.18);
  color: var(--teal-300);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-card .txt { font-size: 0.88rem; color: rgba(255, 255, 255, 0.85); }
.flow-card .txt strong { display: block; font-size: 0.92rem; color: white; margin-bottom: 2px; }

.flow-arrow {
  text-align: center;
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.9rem;
  margin: 2px 0;
}

/* PROBLEM / SOLUTION GRID */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}

.card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card p { color: var(--muted); margin: 0; font-size: 0.97rem; }

.card-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.2rem;
}

.card-icon.bad { background: rgba(220, 38, 38, 0.08); color: #dc2626; }
.card-icon.good { background: rgba(20, 184, 166, 0.12); color: var(--teal-500); }

.problem-list { display: grid; gap: 16px; }

/* STEPS */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.step {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  position: relative;
}

.step .step-num {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--teal-500);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.step h4 { font-size: 0.98rem; margin: 0 0 8px; }
.step p { font-size: 0.85rem; color: var(--muted); margin: 0; }

/* MARKET */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.stat-box {
  background: var(--navy-950);
  color: white;
  border-radius: var(--radius);
  padding: 30px 28px;
}

.stat-box .num {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--teal-300);
  margin-bottom: 8px;
}

.stat-box .lbl { font-size: 0.9rem; color: rgba(255, 255, 255, 0.65); }
.stat-note {
  margin-top: 18px;
  font-size: 0.8rem;
  color: var(--muted);
  font-style: italic;
}

/* BUSINESS MODEL */
.model-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.model-card {
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
  background: var(--white);
}

.model-card.highlight {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-950));
  color: white;
  border: none;
}

.model-card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--paper-dim);
  color: var(--muted);
  margin-bottom: 16px;
}

.model-card.highlight .tag { background: rgba(20, 184, 166, 0.16); color: var(--teal-300); }

.model-card h3 { font-size: 1.2rem; margin-bottom: 12px; }
.model-card p { color: var(--muted); font-size: 0.95rem; }
.model-card.highlight p { color: rgba(255, 255, 255, 0.7); }

.model-card ul { padding-left: 18px; margin: 16px 0 0; color: var(--muted); font-size: 0.92rem; }
.model-card.highlight ul { color: rgba(255, 255, 255, 0.75); }
.model-card li { margin-bottom: 8px; }

/* ASK */
.ask-box {
  background: linear-gradient(135deg, var(--navy-950), var(--navy-800));
  border-radius: 24px;
  padding: 56px;
  color: white;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
}

.ask-box h2 { font-size: clamp(1.6rem, 3vw, 2rem); margin-bottom: 14px; }
.ask-box p { color: rgba(255, 255, 255, 0.7); margin: 0; }

.ask-figures {
  display: grid;
  gap: 16px;
}

.ask-figure {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.92rem;
}

.ask-figure .k { color: rgba(255, 255, 255, 0.6); }
.ask-figure .v { font-weight: 700; color: var(--teal-300); }

.placeholder-flag {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 14px;
}

/* CONTACT / FOOTER */
.contact-box {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.contact-box h2 { margin-bottom: 14px; }
.contact-box p { color: var(--muted); margin-bottom: 30px; }

footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--white);
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--muted);
}

footer .foot-links { display: flex; gap: 20px; }
footer .foot-links a:hover { color: var(--ink); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .two-col { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: 1fr; }
  .model-grid { grid-template-columns: 1fr; }
  .ask-box { grid-template-columns: 1fr; padding: 36px 28px; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
  section { padding: 64px 0; }
  .nav-links { position: fixed; top: 72px; left: 0; right: 0; background: var(--paper); flex-direction: column; align-items: stretch; padding: 20px; border-bottom: 1px solid var(--border); transform: translateY(-8px); opacity: 0; pointer-events: none; transition: all 0.2s ease; gap: 14px; }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-toggle { display: block; }
  .steps { grid-template-columns: 1fr; }
}