/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Roboto', Arial, sans-serif;
  color: #222;
  background: #fff;
  line-height: 1.7;
  font-size: 16px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ===== CONTAINER ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 4vw; }

/* ===== HEADER ===== */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid #eee;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #1a1a2e;
}
.logo span { color: #0066ff; }

nav { display: flex; gap: 28px; align-items: center; }
nav a {
  font-size: .9rem;
  font-weight: 500;
  color: #444;
  transition: color .2s;
  text-transform: uppercase;
  letter-spacing: .5px;
}
nav a:hover, nav a.active { color: #0066ff; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #222; margin: 5px 0; transition: .3s; }

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, #0a1628 0%, #162d50 50%, #0066ff 100%);
  color: #fff;
  padding: 100px 0 80px;
  text-align: center;
}
.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}
.hero p {
  font-size: 1.15rem;
  max-width: 680px;
  margin: 0 auto 32px;
  opacity: .9;
}
.btn {
  display: inline-block;
  background: #0066ff;
  color: #fff;
  padding: 14px 36px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  transition: background .2s, transform .1s;
  border: none;
  cursor: pointer;
}
.btn:hover { background: #0052cc; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,.15); }

/* ===== SECTIONS ===== */
section { padding: 70px 0; }
section:nth-child(even) { background: #f8f9fb; }

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: #1a1a2e;
}
.section-subtitle {
  text-align: center;
  color: #666;
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

/* ===== INFO CARDS ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.info-card {
  background: #fff;
  padding: 32px 28px;
  border-radius: 10px;
  border: 1px solid #e8ecf1;
  transition: box-shadow .3s, transform .2s;
}
.info-card:hover { box-shadow: 0 8px 30px rgba(0,0,0,.08); transform: translateY(-2px); }
.info-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #1a1a2e;
}
.info-card p { color: #555; font-size: .95rem; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid #e8ecf1;
  padding: 20px 0;
}
.faq-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #1a1a2e;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item h3::after {
  content: '+';
  font-size: 1.4rem;
  color: #0066ff;
  font-weight: 300;
}
.faq-item.open h3::after { content: '−'; }
.faq-item p {
  color: #555;
  font-size: .95rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s;
}
.faq-item.open p { max-height: 500px; padding-top: 4px; }

/* ===== ABOUT ===== */
.about-content {
  max-width: 800px;
  margin: 0 auto;
}
.about-content p {
  margin-bottom: 18px;
  color: #444;
  font-size: 1.02rem;
}
.about-content strong { color: #1a1a2e; }

.company-info {
  background: #f0f4ff;
  padding: 32px;
  border-radius: 10px;
  margin-top: 36px;
}
.company-info h3 {
  font-size: 1.2rem;
  margin-bottom: 16px;
  color: #1a1a2e;
}
.company-info p { margin-bottom: 6px; color: #444; }

/* ===== CONTACT FORM ===== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  max-width: 900px;
  margin: 0 auto;
}
.contact-info h3 { font-size: 1.2rem; margin-bottom: 18px; color: #1a1a2e; }
.contact-info p { margin-bottom: 12px; color: #555; }
.contact-info a { color: #0066ff; }

.contact-form label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: #444;
  margin-bottom: 6px;
  margin-top: 18px;
}
.contact-form label:first-child { margin-top: 0; }
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: .95rem;
  font-family: inherit;
  transition: border-color .2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #0066ff;
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form .btn { margin-top: 20px; width: 100%; }

/* ===== FOOTER ===== */
footer {
  background: #0a1628;
  color: #ccc;
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo { color: #fff; margin-bottom: 14px; font-size: 1.4rem; }
.footer-brand p { font-size: .9rem; line-height: 1.7; color: #999; }

footer h4 {
  font-size: .95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
footer ul li { margin-bottom: 8px; }
footer ul li a { font-size: .9rem; color: #999; transition: color .2s; }
footer ul li a:hover { color: #0066ff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .82rem;
  color: #666;
}

/* ===== NEWSLETTER ===== */
.newsletter {
  background: linear-gradient(135deg, #0052cc, #0066ff);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.newsletter h2 { font-size: 1.6rem; margin-bottom: 10px; }
.newsletter p { opacity: .85; margin-bottom: 24px; }
.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto;
}
.newsletter-form input {
  flex: 1;
  padding: 14px 18px;
  border: none;
  border-radius: 6px;
  font-size: .95rem;
}
.newsletter-form .btn { background: #1a1a2e; }
.newsletter-form .btn:hover { background: #0a0a1e; }

/* ===== KEYWORDS (SEO) ===== */
.seo-keywords {
  padding: 40px 0;
  background: #f8f9fb;
}
.seo-keywords .container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.seo-keywords span {
  background: #e8ecf1;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: .82rem;
  color: #555;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero { padding: 70px 0 60px; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 20px 4vw; gap: 16px; border-bottom: 1px solid #eee; box-shadow: 0 8px 20px rgba(0,0,0,.08); }
  nav.open { display: flex; }
  .nav-toggle { display: block; }
}