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

:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-text: #1a1a2e;
  --color-muted: #5a5f72;
  --color-accent: #0f4c81;
  --color-accent-light: #1a6bb5;
  --color-highlight: #e8731a;
  --color-highlight-light: #f59542;
  --color-border: #dfe2e8;
  --color-dark: #0c1a2e;
  --color-dark-mid: #132d4a;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

/* Nav */
header {
  background: var(--color-dark);
  position: sticky;
  top: 0;
  z-index: 10;
}

nav {
  max-width: 1040px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
  letter-spacing: -0.02em;
}

.logo span {
  font-weight: 400;
  color: var(--color-highlight);
  margin-left: 0.35rem;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover {
  color: #fff;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-mid) 50%, var(--color-accent) 100%);
  padding: 7rem 2rem 6rem;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 115, 26, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 1040px;
  margin: 0 auto;
}

.hero-tag {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-highlight);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #fff;
  max-width: 680px;
}

.hero-sub {
  margin-top: 1.75rem;
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 520px;
  line-height: 1.65;
}

.btn-hero {
  margin-top: 2.75rem;
  background: var(--color-highlight);
  color: #fff;
  padding: 0.85rem 2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-block;
  transition: background 0.2s, transform 0.2s;
}

.btn-hero:hover {
  background: var(--color-highlight-light);
  transform: translateY(-1px);
}

/* Sections */
main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 2rem;
  overflow-x: clip;
}

section {
  padding: 5rem 0;
}

h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1.75rem;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

/* Services Cards */
.services {
  border-bottom: 1px solid var(--color-border);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 2rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 1.5rem;
  color: var(--color-highlight);
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* About */
.about {
  border-bottom: 1px solid var(--color-border);
}

.about-inner {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-dark-mid) 100%);
  border-radius: 12px;
  padding: 3rem;
  color: #fff;
}

.about-inner h2 {
  color: #fff;
}

.about-inner p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.about-inner p:last-child {
  margin-bottom: 0;
}

/* Contact */
.contact {
  text-align: center;
  padding: 5rem 0 6rem;
}

.contact p {
  color: var(--color-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.contact-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 0.85rem 2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.2s;
}

.btn:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: #fff;
}

/* Footer */
footer {
  background: var(--color-dark);
  text-align: center;
  padding: 2rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Mobile */
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero {
    padding: 4rem 2rem 3rem;
  }

  nav {
    flex-direction: column;
    gap: 0.75rem;
  }

  nav ul {
    gap: 1.25rem;
  }

  section {
    padding: 3rem 0;
  }

  .about-inner {
    padding: 2rem;
  }

  .contact-buttons {
    flex-direction: column;
    align-items: center;
  }
}