:root {
  --bg: #0b0f14;
  --bg-deep: #09111d;
  --bg-soft: #121922;
  --text: #ffffff;
  --muted: #a8b3c2;
  --accent: #FF8000;
  --accent-dark: #e67300;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.12);
  --container: 1200px;
  --radius: 18px;
  --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.18);
  --shadow-accent: 0 18px 40px rgba(255, 128, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, sans-serif;
  color: var(--text);
  line-height: 1.5;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 128, 0, 0.08), transparent 28%),
    radial-gradient(circle at 50% 100%, rgba(255, 128, 0, 0.08), transparent 24%),
    linear-gradient(90deg, rgba(25, 52, 95, 0.18), transparent 20%, transparent 80%, rgba(25, 52, 95, 0.18)),
    linear-gradient(135deg, #05080d 0%, #09111d 45%, #0b1420 100%);
  min-height: 100vh;
}

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

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

.container {
  width: min(100% - 48px, var(--container));
  margin: 0 auto;
}

/* Header */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 8, 13, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
}

.nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav a {
  color: rgba(255, 255, 255, 0.76);
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.nav a:hover {
  color: #ffffff;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 28px;
  border-radius: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary,
.btn-nav {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #ffffff;
  box-shadow: 0 10px 30px rgba(255, 128, 0, 0.25);
}

.btn-primary:hover,
.btn-nav:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: #ffffff;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

/* Hero */

.hero {
  min-height: calc(100vh - 86px);
  display: flex;
  align-items: center;
  padding: 90px 0 110px;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 820px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 128, 0, 0.14), transparent 70%);
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 64px;
  align-items: center;
}

.hero-content {
  max-width: 780px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 22px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.78);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.95rem;
  font-weight: 500;
}

.hero h1 {
  font-size: clamp(2.8rem, 5.2vw, 5.8rem);
  line-height: 0.92;
  letter-spacing: -0.045em;
  margin-bottom: 24px;
  max-width: 780px;
  font-weight: 800;
}

.hero p {
  font-size: 1.28rem;
  line-height: 1.5;
  color: var(--muted);
  max-width: 700px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-card {
  display: flex;
  justify-content: flex-end;
}

.card {
  width: 100%;
  max-width: 430px;
  border: 1px solid var(--line);
  padding: 28px 28px 34px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.025);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}

.card h3 {
  font-size: 1.9rem;
  line-height: 1.1;
  margin-bottom: 10px;
  letter-spacing: -0.03em;
}

.step {
  display: flex;
  gap: 14px;
  margin-top: 22px;
  align-items: flex-start;
}

.step span {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  min-width: 42px;
  height: 52px;
  padding: 0 10px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
}

.step strong {
  display: block;
  font-size: 1.45rem;
  line-height: 1.1;
  margin-bottom: 4px;
  letter-spacing: -0.03em;
}

.step p {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--muted);
}

/* Generic sections for later expansion */

.section {
  padding: 110px 0;
  position: relative;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 18px;
}

.section-subtitle {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.6;
}

/* Footer placeholder */

.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

/* Responsive */

@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero-card {
    justify-content: flex-start;
  }

  .card {
    max-width: 520px;
  }
}

@media (max-width: 900px) {
  .container {
    width: min(100% - 36px, var(--container));
  }

  .header-inner {
    min-height: 78px;
  }

  .nav {
    gap: 20px;
  }

  .hero {
    min-height: auto;
    padding: 72px 0 88px;
  }

  .hero h1 {
    font-size: clamp(2.6rem, 9vw, 4.8rem);
  }

  .hero p {
    font-size: 1.12rem;
    max-width: 640px;
  }

  .card h3 {
    font-size: 1.6rem;
  }

  .step strong {
    font-size: 1.2rem;
  }

  .step p {
    font-size: 1rem;
  }
}

@media (max-width: 680px) {
  .header-inner {
    flex-direction: column;
    justify-content: center;
    gap: 14px;
    padding: 18px 0;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  .hero {
    padding: 56px 0 72px;
  }

  .hero h1 {
    font-size: clamp(2.3rem, 11vw, 4rem);
    line-height: 0.95;
  }

  .hero p {
    font-size: 1rem;
    line-height: 1.55;
    margin-bottom: 32px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .card {
    padding: 22px 20px 26px;
  }

  .step {
    gap: 12px;
    margin-top: 18px;
  }

  .step span {
    min-width: 38px;
    height: 46px;
    font-size: 0.92rem;
  }

  .step strong {
    font-size: 1.08rem;
  }

  .step p {
    font-size: 0.95rem;
  }

  .section {
    padding: 80px 0;
  }
}