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

:root {
  --color-primary: #1a3c6e;
  --color-accent:  #2e7df7;
  --color-bg:      #f8fafc;
  --color-text:    #1e293b;
  --color-muted:   #64748b;
  --color-white:   #ffffff;
  --radius:        12px;
  --shadow:        0 4px 24px rgba(30,41,59,.08);
  --font:          'Inter', system-ui, sans-serif;
  --max-w:         1100px;
}

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

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* Header */
.header { background: var(--color-white); border-bottom: 1px solid #e2e8f0; position: sticky; top: 0; z-index: 100; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--color-primary); }
.logo span { color: var(--color-accent); }
.nav__links { display: flex; gap: 32px; list-style: none; }
.nav__links a { text-decoration: none; color: var(--color-text); font-weight: 500; transition: color .2s; }
.nav__links a:hover { color: var(--color-accent); }

/* Hero */
.hero { background: linear-gradient(135deg, var(--color-primary) 0%, #0f2550 100%); color: var(--color-white); padding: 100px 0; text-align: center; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 700; line-height: 1.2; margin-bottom: 20px; }
.hero p { font-size: 1.15rem; color: #93c5fd; max-width: 560px; margin: 0 auto 36px; }

/* Buttons */
.btn { display: inline-block; padding: 14px 32px; border-radius: 8px; font-weight: 600; text-decoration: none; transition: all .2s; }
.btn--primary { background: var(--color-accent); color: var(--color-white); }
.btn--primary:hover { background: #1d6ae0; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(46,125,247,.3); }

/* Services */
.services { padding: 80px 0; }
.services h2, .about h2, .contact h2 { text-align: center; font-size: 2rem; font-weight: 700; color: var(--color-primary); margin-bottom: 48px; }
.services__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.service-card { background: var(--color-white); border-radius: var(--radius); padding: 32px 24px; box-shadow: var(--shadow); text-align: center; transition: transform .2s, box-shadow .2s; }
.service-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(30,41,59,.12); }
.service-card__icon { font-size: 2.4rem; margin-bottom: 16px; }
.service-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--color-primary); margin-bottom: 10px; }
.service-card p { color: var(--color-muted); font-size: .95rem; }

/* About */
.about { background: var(--color-white); padding: 80px 0; }
.about p { max-width: 700px; margin: 0 auto; text-align: center; font-size: 1.05rem; color: var(--color-muted); }

/* Contact */
.contact { padding: 80px 0; }
.contact__info { text-align: center; font-size: 1.1rem; }
.contact__info p { margin-bottom: 10px; }
.contact__info a { color: var(--color-accent); text-decoration: none; font-weight: 500; }
.contact__info a:hover { text-decoration: underline; }

/* Footer */
.footer { background: var(--color-primary); color: #93c5fd; text-align: center; padding: 24px 0; font-size: .9rem; }

@media (max-width: 640px) {
  .nav__links { display: none; }
  .hero { padding: 64px 0; }
}