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

:root {
  --navy: #2B5E9F;
  --blue: #346AAD;
  --yellow: #FFC40C;
  --white: #ffffff;
  --light-gray: #f7f7f7;
  --text: #333333;
  --text-light: #555555;
}

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text);
}

/* ── NAVBAR ── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 60px;
  background: var(--white);
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-img {
  width: 190px;
  height: auto;
  display: block;
  object-fit: contain;
  transition: 0.3s ease;
}

.logo:hover .logo-img {
  transform: scale(1.02);
}

.logo-text { display: flex; flex-direction: column; line-height: 1.1; }

.logo-text .brand {
  font-family: 'Montserrat', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--navy);
}

.logo-text .sub {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--navy);
}

.nav-links { display: flex; list-style: none; gap: 32px; }

.nav-links a {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  transition: color .2s;
}

.nav-links a:hover, .nav-links a.active { color: var(--blue); }

.nav-links li:first-child a {
  color: var(--blue);
  border-bottom: 2px solid var(--yellow);
  padding-bottom: 2px;
}

.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--yellow);
  color: var(--navy);
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
  transition: background .2s;
}

.nav-phone:hover { background: #e6af00; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #e8ecf0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../img/hero-bg.jpg') center/cover no-repeat;
  background-color: #c8cdd5;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255,255,255,.88) 40%, rgba(255,255,255,.2));
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 70px 60px;
  max-width: 520px;
}

.hero-content h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 42px;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
}

.hero-content h1 span { color: var(--blue); display: block; }

.hero-content p {
  margin: 16px 0 28px;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ── BUTTONS ── */
.btn-yellow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--yellow);
  color: var(--navy);
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 13px 24px;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background .2s;
}

.btn-yellow:hover { background: #e6af00; }

.btn-navy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--navy);
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 13px 28px;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background .2s;
}

.btn-navy:hover { background: #1e4a7a; }

/* ── SECTION COMMONS ── */
section { padding: 70px 60px; }

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--navy);
  text-align: center;
  margin-bottom: 10px;
}

.section-underline {
  width: 50px;
  height: 3px;
  background: var(--yellow);
  margin: 0 auto 44px;
}

/* ── SERVICES ── */
.services { background: var(--white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.service-card {
  border: 1.5px solid #e5e9f0;
  border-radius: 8px;
  padding: 28px 16px 22px;
  text-align: center;
  transition: box-shadow .2s, border-color .2s;
}

.service-card:hover {
  box-shadow: 0 6px 24px rgba(29,78,216,.10);
  border-color: var(--blue);
}

.service-card .svc-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 14px;
  display: block;
  object-fit: contain;
}

.service-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.service-card p { font-size: 12.5px; color: var(--text-light); line-height: 1.6; }

/* ── WHY ── */
.why { background: var(--light-gray); }

.why-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.why-left h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 30px;
}

.why-list { list-style: none; display: flex; flex-direction: column; gap: 20px; }

.why-list li { display: flex; gap: 14px; align-items: flex-start; }

.check-icon {
  width: 24px;
  height: 24px;
  background: var(--blue);
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.check-icon svg { width: 13px; height: 13px; }

.why-list h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.why-list p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

.why-right .img-placeholder {
  width: 100%;
  height: 340px;
  background: url('../img/why-image.jpg') center/cover no-repeat;
  background-color: #c8cdd5;
  border-radius: 8px;
}

/* ── PROJECTS ── */
.projects { background: var(--white); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 30px;
}

.proj-img {
  width: 100%;
  height: 180px;
  background-color: #c8cdd5;
  background-size: cover;
  background-position: center;
  border-radius: 6px;
  overflow: hidden;
}

.proj-img:nth-child(1) { background-image: url('../img/project1.jpg'); }
.proj-img:nth-child(2) { background-image: url('../img/project2.jpg'); }
.proj-img:nth-child(3) { background-image: url('../img/project3.jpg'); }
.proj-img:nth-child(4) { background-image: url('../img/project4.jpg'); }

.projects-center { text-align: center; }

/* ── CTA BANNER ── */
.cta-banner { background: var(--navy); padding: 50px 60px; }

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.cta-left { display: flex; align-items: center; gap: 24px; }

.cta-icon { width: 64px; height: 64px; flex-shrink: 0; color: var(--yellow); }

.cta-text h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}

.cta-text p { font-size: 14px; color: rgba(255,255,255,.75); }

/* ── CONTACT ── */
.contact-section { background: var(--white); padding: 60px 60px; }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
}

.contact-left h3,
.contact-right h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 24px;
}

.contact-items { display: flex; flex-direction: column; gap: 16px; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text);
}

.contact-item svg { width: 20px; height: 20px; color: var(--blue); flex-shrink: 0; }

.map-placeholder {
  width: 100%;
  height: 220px;
  background: url('../img/map.jpg') center/cover no-repeat;
  background-color: #d5dde8;
  border-radius: 8px;
  border: 1px solid #dde3ec;
}

/* ── FOOTER ── */
footer {
  background: #1a2e4a;
  color: rgba(255,255,255,.7);
  padding: 40px 60px 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 30px;
}

.footer-logo { display: flex; align-items: center; gap: 10px; }

.footer-logo-img {
  width: 170px;
  height: auto;
  display: block;
  object-fit: contain;
  opacity: .95;
}

.footer-col h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: .5px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer-col a {
  font-size: 13px;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  transition: color .2s;
}

.footer-col a:hover { color: var(--yellow); }

.footer-contact-items { display: flex; flex-direction: column; gap: 10px; }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--yellow);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,.4);
}

.footer-bottom a {
  color: rgba(255,255,255,.4);
  text-decoration: none;
  transition: color .2s;
}

.footer-bottom a:hover { color: var(--white); }

.footer-bottom-links { display: flex; gap: 16px; }

/* ══════════════════════════════════════
   HAMBURGER MENU (mobile)
══════════════════════════════════════ */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--navy);
  border-radius: 2px;
  transition: all .3s;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ══════════════════════════════════════
   TABLET  (max 1024px)
══════════════════════════════════════ */
@media (max-width: 1024px) {
  nav { padding: 14px 30px; }

  .logo-img { width: 165px; }

  .footer-logo-img { width: 150px; }

  .nav-links { gap: 20px; }

  .hero-content { padding: 50px 30px; }
  .hero-content h1 { font-size: 34px; }

  section { padding: 60px 30px; }

  .services-grid { grid-template-columns: repeat(3, 1fr); }

  .why-inner { gap: 30px; }

  .projects-grid { grid-template-columns: repeat(2, 1fr); }

  .cta-banner { padding: 40px 30px; }

  .contact-section { padding: 60px 30px; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }

  footer { padding: 40px 30px 24px; }
}

/* ══════════════════════════════════════
   MOBILE  (max 768px)
══════════════════════════════════════ */
@media (max-width: 768px) {

  /* Navbar */
  nav {
    padding: 14px 20px;
    flex-wrap: wrap;
    gap: 0;
  }

  .logo-img { width: 145px; }

  .footer-logo-img { width: 135px; }

  .hamburger { display: flex; }

  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    width: 100%;
    background: var(--white);
    border-top: 1px solid #eee;
    margin-top: 14px;
  }

  .nav-links.open { display: flex; }

  .nav-links li a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 15px;
  }

  .nav-links li:first-child a {
    border-bottom: 1px solid #f0f0f0;
  }

  .nav-phone { display: none; }

  /* Hero */
  .hero { min-height: 380px; }

  .hero-content {
    padding: 40px 20px;
    max-width: 100%;
  }

  .hero-content h1 { font-size: 28px; }
  .hero-content p { font-size: 14px; }

  /* Sections */
  section { padding: 50px 20px; }

  .section-title { font-size: 22px; }

  /* Services */
  .services-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }

  /* Why */
  .why-inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .why-left h2 { font-size: 22px; }

  .why-right .img-placeholder { height: 240px; }

  /* Projects */
  .projects-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }

  .proj-img { height: 140px; }

  /* CTA */
  .cta-banner { padding: 36px 20px; }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .cta-text h2 { font-size: 20px; }

  .btn-yellow, .btn-navy { width: 100%; justify-content: center; }

  /* Contact */
  .contact-section { padding: 50px 20px; }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  /* Footer */
  footer { padding: 36px 20px 20px; }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

/* ══════════════════════════════════════
   SMALL MOBILE  (max 480px)
══════════════════════════════════════ */
@media (max-width: 480px) {
  .hero-content h1 { font-size: 24px; }

  .services-grid { grid-template-columns: 1fr 1fr; }

  .service-card { padding: 20px 10px 16px; }

  .projects-grid { grid-template-columns: 1fr 1fr; }

  .proj-img { height: 120px; }

  .cta-text h2 { font-size: 18px; }
}