/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #1a1a2e;
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* === Colors === */
:root {
  --primary: #1b3a5c;
  --primary-dark: #122840;
  --accent: #e8722a;
  --accent-hover: #d4621e;
  --light-bg: #f5f7fa;
  --dark-bg: #0f1c2e;
  --text: #1a1a2e;
  --text-light: #5a6275;
  --white: #ffffff;
  --border: #e2e6ed;
  --shadow: 0 2px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
}

/* === Navbar === */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.navbar.scrolled { box-shadow: var(--shadow); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; }
.logo-icon { color: var(--accent); font-size: 1.5rem; }
.logo-img { height: 50px; width: auto; }
.footer-logo .logo-img { height: 40px; }
.logo-accent { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-weight: 500; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 6px 0; transition: 0.3s; }

/* === Buttons === */
.btn {
  display: inline-block; padding: 12px 28px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: all 0.2s;
  border: 2px solid transparent; text-align: center;
}
.btn-primary { background: var(--accent); color: var(--white); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }
.btn-nav { padding: 8px 20px; font-size: 0.9rem; background: var(--accent); color: var(--white); border-color: var(--accent); }
.btn-nav:hover { background: var(--accent-hover); color: var(--white) !important; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; }

/* === Hero === */
.hero {
  position: relative; min-height: 90vh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding-top: 72px; overflow: hidden;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero h1 { font-size: 3.5rem; font-weight: 800; color: var(--white); line-height: 1.1; margin-bottom: 20px; }
.hero-sub { font-size: 1.2rem; color: rgba(255,255,255,0.8); margin-bottom: 36px; line-height: 1.7; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-trust { display: flex; gap: 32px; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.7); font-size: 0.95rem; font-weight: 500; }
.trust-icon { color: var(--accent); font-weight: 700; }

/* === Sections === */
.section { padding: 96px 0; }
.section-title { font-size: 2.2rem; font-weight: 800; text-align: center; margin-bottom: 16px; }
.section-sub { text-align: center; color: var(--text-light); font-size: 1.1rem; max-width: 600px; margin: 0 auto 56px; }
.section-cta { text-align: center; margin-top: 48px; }

/* === Page Header === */
.page-header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 140px 0 64px; text-align: center; color: var(--white);
}
.page-header h1 { font-size: 2.8rem; font-weight: 800; margin-bottom: 12px; }
.page-header p { font-size: 1.15rem; opacity: 0.8; max-width: 560px; margin: 0 auto; }

/* === Services Grid === */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 28px; transition: all 0.3s; text-align: center;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.service-icon { font-size: 2.5rem; margin-bottom: 16px; }
.service-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.service-card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.6; }

/* === Service Detail (services page) === */
.service-detail {
  padding: 48px 0; border-bottom: 1px solid var(--border);
}
.service-detail:last-child { border-bottom: none; }
.service-detail h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 16px; color: var(--primary); }
.service-detail p { color: var(--text-light); font-size: 1.05rem; line-height: 1.7; margin-bottom: 20px; max-width: 720px; }
.service-list { margin: 0 0 28px 20px; list-style: disc; }
.service-list li { color: var(--text-light); font-size: 1rem; margin-bottom: 8px; line-height: 1.5; }

/* === Why Us === */
.why-us { background: var(--light-bg); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.why-item { text-align: center; }
.why-number { font-size: 3rem; font-weight: 800; color: var(--accent); opacity: 0.3; margin-bottom: 8px; }
.why-item h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.why-item p { color: var(--text-light); font-size: 0.95rem; }

/* === Service Area === */
.area-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.area-tag {
  background: var(--light-bg); border: 1px solid var(--border); border-radius: 50px;
  padding: 10px 24px; font-weight: 500; font-size: 0.95rem; color: var(--primary);
}

/* === CTA Section === */
.cta-section { background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%); }
.cta-content { text-align: center; color: var(--white); }
.cta-content h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; }
.cta-content p { font-size: 1.1rem; opacity: 0.8; margin-bottom: 32px; }

/* === About === */
.about-content { max-width: 800px; margin: 0 auto; }
.about-block { margin-bottom: 48px; }
.about-block h2 { font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.about-block p { color: var(--text-light); font-size: 1.05rem; line-height: 1.7; margin-bottom: 16px; }
.about-values { margin-bottom: 48px; }
.about-values h2 { font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 28px; text-align: center; }
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.value-item { text-align: center; padding: 28px; background: var(--light-bg); border-radius: var(--radius); }
.value-icon { font-size: 2rem; margin-bottom: 12px; }
.value-item h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.value-item p { color: var(--text-light); font-size: 0.95rem; }

/* === Contact === */
.contact-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start; }
.contact-form-wrap h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
.contact-form-wrap > p { color: var(--text-light); margin-bottom: 28px; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-weight: 600; font-size: 0.9rem; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
  padding: 14px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 1rem; transition: border-color 0.2s; background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent);
}
.form-group textarea { resize: vertical; }
.form-note { font-size: 0.85rem; color: var(--text-light); text-align: center; margin-top: 4px; }
.form-success { text-align: center; padding: 48px 0; }
.success-icon { font-size: 3rem; color: #22c55e; margin-bottom: 16px; }
.form-success h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; }
.form-success p { color: var(--text-light); }

.contact-info-wrap { display: flex; flex-direction: column; gap: 24px; }
.contact-info-card {
  background: var(--light-bg); border-radius: var(--radius); padding: 28px;
}
.contact-info-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 20px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 20px; }
.contact-info-item:last-child { margin-bottom: 0; }
.ci-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.contact-info-item a { color: var(--accent); }
.contact-info-card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.6; }

/* === Footer === */
.footer { background: var(--dark-bg); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--white); margin-bottom: 16px; }
.footer-col h4 { color: var(--white); font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a:hover { color: var(--accent); }
.footer-col p { font-size: 0.9rem; line-height: 1.6; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 48px; padding: 24px 0; text-align: center; font-size: 0.85rem; }

/* === Responsive === */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    background: var(--white); flex-direction: column; padding: 24px;
    border-bottom: 1px solid var(--border); gap: 16px; box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .hero { min-height: 80vh; }
  .hero h1 { font-size: 2.4rem; }
  .hero-sub { font-size: 1.05rem; }
  .hero-trust { flex-direction: column; gap: 12px; }
  .section { padding: 64px 0; }
  .section-title { font-size: 1.8rem; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .page-header { padding: 120px 0 48px; }
  .page-header h1 { font-size: 2rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .btn-lg { padding: 14px 28px; }
}