:root {
  --bg: #0b1020;
  --bg-soft: #111936;
  --card: #151f43;
  --text: #e9edff;
  --muted: #b7c2ee;
  --accent: #5f8bff;
  --accent-strong: #3e6df4;
  --line: #263461;
  --max: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  background: radial-gradient(circle at top right, #1a2454 0%, var(--bg) 45%);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 16, 32, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.brand {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.2px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.nav-list a:hover {
  color: var(--text);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  padding: 0.45rem 0.75rem;
  border-radius: 0.6rem;
}

.hero {
  padding: 5rem 0 3.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: start;
}

.eyebrow {
  color: #9fb2ff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 62ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.btn {
  display: inline-block;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  border: 0;
  border-radius: 0.75rem;
  padding: 0.72rem 1rem;
  cursor: pointer;
}

.btn:hover {
  filter: brightness(1.05);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}

.btn-sm {
  padding: 0.45rem 0.75rem;
}

.hero-card,
.card,
.about-panel,
.contact-form {
  background: color-mix(in srgb, var(--card) 88%, black);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.hero-card {
  padding: 1.2rem;
}

.hero-card h2 {
  font-size: 1.1rem;
}

.hero-card ul,
.about-panel ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
}

.section {
  padding: 3.5rem 0;
}

.section-alt {
  background: rgba(17, 25, 54, 0.65);
  border-block: 1px solid var(--line);
}

.cards {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  padding: 1.2rem;
}

.card p,
.steps p,
.about-grid p,
.contact-wrap p {
  color: var(--muted);
}

.steps {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.steps article {
  background: rgba(21, 31, 67, 0.5);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
}

.steps span {
  display: inline-block;
  font-weight: 800;
  color: #b1c0ff;
  margin-bottom: 0.4rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
}

.about-panel {
  padding: 1.2rem;
}

.section-contact {
  background: rgba(11, 16, 32, 0.55);
  border-top: 1px solid var(--line);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-form {
  padding: 1rem;
  display: grid;
  gap: 0.6rem;
}

.contact-form label {
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--line);
  background: #0f1733;
  color: var(--text);
  border-radius: 0.65rem;
  padding: 0.7rem;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 65%, white);
  outline-offset: 1px;
}

.form-note {
  margin: 0.3rem 0 0;
  font-size: 0.88rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.footer-wrap p {
  margin: 0;
  color: var(--muted);
}

.footer-wrap a {
  color: #bcd0ff;
  text-decoration: none;
}

@media (max-width: 950px) {
  .hero-grid,
  .cards,
  .steps,
  .about-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: inline-block;
  }

  .nav-list {
    position: absolute;
    top: 56px;
    right: 1rem;
    background: #101a3a;
    border: 1px solid var(--line);
    border-radius: 0.7rem;
    padding: 0.8rem;
    min-width: 180px;
    display: none;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-list.open {
    display: flex;
  }
}