:root {
  --navy: #071326;
  --blue: #103a7a;
  --accent: #ff9f00;
  --accent-dark: #e68600;
  --light: #f7f8fa;
  --text: #16232f;
  --muted: #495764;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: var(--light);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

a { text-decoration: none; color: inherit; }

/* Header */
.site-header {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  border-bottom: 3px solid var(--accent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo {
  height: 48px;
  width: 48px;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid var(--accent);
}

.brand-name {
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
}

.brand-name small {
  display: block;
  font-weight: 400;
  font-size: 0.7rem;
  color: #c9d3dc;
  letter-spacing: 0.05em;
}

.main-nav {
  display: flex;
  gap: 1.5rem;
}

.main-nav a {
  color: #dbe4ec;
  font-weight: 500;
  transition: color 0.2s;
}

.main-nav a:hover {
  color: var(--accent);
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.3rem;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.2s, transform 0.15s;
}

.btn-header {
  background: var(--accent);
  color: var(--navy);
}

.btn-header:hover {
  background: var(--accent-dark);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy), var(--blue) 60%, #1d55b3);
  color: #fff;
  text-align: center;
  padding: 4.5rem 1.5rem;
  border-bottom: 5px solid var(--accent);
}

.hero-logo {
  height: 100px;
  width: 100px;
  object-fit: cover;
  border-radius: 12px;
  border: 3px solid var(--accent);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-sub {
  max-width: 650px;
  margin: 0 auto 2rem;
  color: #d8e1ea;
  font-size: 1.1rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--navy);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

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

.btn-large {
  font-size: 1.1rem;
  padding: 0.8rem 2rem;
  margin-top: 1rem;
}

/* Services */
.services {
  padding: 4rem 0;
}

.services h2, .about h2, .contact h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--navy);
  margin-bottom: 2.5rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.8rem;
}

.service-card {
  background: #fff;
  padding: 2rem 1.5rem;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(16,58,122,0.12);
  border-top: 5px solid var(--accent);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(16,58,122,0.18);
}

.service-card h3 {
  color: var(--blue);
  margin-bottom: 0.8rem;
  font-size: 1.3rem;
  font-weight: 700;
}

.service-card p {
  color: var(--muted);
}

/* Gallery */
.gallery {
  background: #fff;
  padding: 4rem 0;
}

.gallery h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--navy);
  margin-bottom: 2.5rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
}

.gallery-grid img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.1);
  transition: transform 0.2s;
}

.gallery-grid img:hover {
  transform: scale(1.03);
}

/* About */
.about {
  background: #fff;
  padding: 4rem 0;
}

.about-inner {
  max-width: 750px;
  text-align: center;
  margin: 0 auto;
}

.about p {
  color: var(--muted);
  font-size: 1.05rem;
}

/* Contact */
.contact {
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: #fff;
  padding: 4rem 0;
  text-align: center;
  border-top: 5px solid var(--accent);
}

.contact h2 {
  color: #fff;
}

.contact p {
  color: #d8e1ea;
  max-width: 550px;
  margin: 0 auto;
}

.contact-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

/* Footer */
.site-footer {
  background: #0a141e;
  color: #9aa7b3;
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.9rem;
}

.footer-contact {
  margin-top: 0.3rem;
  color: #7a8794;
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #25d366;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  z-index: 200;
  transition: transform 0.2s, box-shadow 0.2s;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Tablet */
@media (max-width: 768px) {
  .container {
    padding: 0 1.1rem;
  }
  .hero {
    padding: 3.5rem 1.25rem;
  }
  .services, .gallery, .about, .contact {
    padding: 3rem 0;
  }
}

/* Phones */
@media (max-width: 600px) {
  .header-inner {
    justify-content: space-between;
    padding: 0.6rem 1rem;
  }
  .brand-name {
    font-size: 1rem;
  }
  .logo {
    height: 40px;
    width: 40px;
  }
  .main-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 1rem;
    padding-top: 0.4rem;
    font-size: 0.9rem;
  }
  .btn-header {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
  .hero {
    padding: 3rem 1.25rem;
  }
  .hero-logo {
    height: 80px;
    width: 80px;
    margin-bottom: 1.1rem;
  }
  .hero-sub {
    font-size: 1rem;
  }
  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  .hero-ctas .btn {
    width: 100%;
    text-align: center;
  }
  .services h2, .about h2, .contact h2, .gallery h2 {
    font-size: 1.6rem;
    margin-bottom: 1.75rem;
  }
  .service-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .service-card {
    padding: 1.6rem 1.25rem;
  }
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  .gallery-grid img {
    height: 140px;
  }
  .about p {
    font-size: 1rem;
  }
  .contact-links {
    flex-direction: column;
    align-items: stretch;
  }
  .contact-links .btn {
    width: 100%;
    text-align: center;
    word-break: break-word;
  }
  .btn-large {
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
  }
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 16px;
    right: 16px;
  }
  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }
  .footer-contact {
    font-size: 0.85rem;
    word-break: break-word;
  }
}

@media (max-width: 380px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .gallery-grid img {
    height: 180px;
  }
}