:root{--blue:#0759b8;--ink:#10243c;--muted:#637084;--soft:#f3f7fb;--line:#dce5ef}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font:16px/1.55 'DM Sans',sans-serif}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.container{width:min(1160px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;z-index:99;background:white;padding:10px}header{position:absolute;z-index:2;width:100%;color:white}.nav{height:92px;display:flex;align-items:center;gap:30px}.brand{display:flex;gap:10px;align-items:center}.brand img{width:42px;height:42px;object-fit:contain}.brand span{display:grid;line-height:1;font-family:Manrope}.brand b{font-size:17px}.brand small{font-size:10px;text-transform:uppercase;letter-spacing:.13em;opacity:.8;margin-top:4px}nav{display:flex;gap:28px;margin-left:auto;font-size:14px;font-weight:bold;opacity:.9}.call{background:white;color:var(--blue);padding:11px 18px;border-radius:3px;font-size:14px;font-weight:bold}.toggle{display:none}.hero{height:100vh;min-height:700px;max-height:900px;display:flex;align-items:center;position:relative;color:white;overflow:hidden}.hero>img,.shade{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.shade{background:linear-gradient(90deg,#06172ae8 0%,#082548bb 46%,#071e3836 80%)}.hero-text{position:relative;padding-top:60px}.eyebrow{color:var(--blue);margin:0 0 16px;font-size:11px;font-weight:bold;text-transform:uppercase;letter-spacing:.15em;display:flex;align-items:center;gap:10px}.eyebrow span{width:28px;height:2px;background:currentColor}.light{color:#cfe4ff}h1,h2,h3{font-family:Manrope;margin:0;letter-spacing:-.045em}h1{font-size:clamp(44px,6vw,78px);line-height:1.04;max-width:770px}em{font-style:normal;color:#81b9ff}.hero-text>p:not(.eyebrow){font-size:18px;max-width:580px;color:#e4edf6;margin:24px 0 32px}.actions{display:flex;gap:28px;align-items:center}.button{display:inline-flex;gap:25px;padding:15px 20px;border-radius:3px;font-size:14px;font-weight:bold}.blue{background:var(--blue);color:white}.text-link{font-size:14px;font-weight:bold}.hero-foot{position:absolute;bottom:0;width:100%;border-top:1px solid #ffffff35;font-size:12px;font-weight:bold;color:#e5edf7}.hero-foot>div{height:65px;display:flex;justify-content:space-between;align-items:center}.section{padding:120px 0}.split{display:grid;grid-template-columns:1fr 2.05fr;gap:45px}.intro h2,.heading h2,.about h2,.contact h2{font-size:clamp(31px,4vw,50px);line-height:1.12}.intro p:not(.eyebrow),.about>p{font-size:18px;color:var(--muted);max-width:710px;margin:24px 0}.blue-text{color:var(--blue)}.services{background:var(--soft)}.heading{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:45px}.heading>p{max-width:340px;color:var(--muted);margin:0}.cards{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:white}.card{min-height:355px;padding:26px 24px;display:flex;flex-direction:column;border-right:1px solid var(--line);transition:.2s}.card:last-child{border:0}.card:hover,.dark{background:var(--ink);color:white}.card small{color:#7a8b9f;font-weight:bold}.card>i{font-style:normal;border:1px solid currentColor;border-radius:50%;width:43px;height:43px;display:grid;place-items:center;margin:32px 0 24px}.card h3{font-size:19px}.card p{font-size:14px;color:var(--muted);margin:10px 0}.card:hover p,.dark p{color:#c1d2e5}.card a{margin-top:auto;padding-top:20px;font-size:13px;font-weight:bold;color:var(--blue)}.card:hover a,.dark a{color:#80b8ff}.about-grid{display:grid;grid-template-columns:1.03fr 1fr;gap:10%;align-items:center}.photo{position:relative}.photo>img{width:100%;height:500px;object-fit:cover}.photo aside{position:absolute;right:0;bottom:0;background:var(--blue);color:white;padding:18px 24px;display:grid;font-size:12px}.photo aside b{font-family:Manrope;font-size:15px}.about-grid>div>p:not(.eyebrow),.contact-grid>div>p:not(.eyebrow){color:var(--muted);margin:23px 0 26px}.about ul{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.about li{padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:bold}.about li b{color:var(--blue);font-size:11px;display:inline-block;width:36px}.cta{background:var(--ink);color:white;text-align:center;padding:104px 0}.cta .eyebrow{justify-content:center}.cta h2{font-size:clamp(35px,4.5vw,58px);line-height:1.08;margin-bottom:30px}.white{background:white;color:var(--ink)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:12%;align-items:center}.contact-links{border-top:1px solid var(--line)}.contact-links a{display:grid;grid-template-columns:100px 1fr auto;align-items:center;gap:12px;padding:20px 0;border-bottom:1px solid var(--line)}.contact-links small{color:var(--muted);font-size:11px;text-transform:uppercase;font-weight:bold;letter-spacing:.1em}.contact-links b{font-size:15px}.contact-links i{font-style:normal;font-size:20px;color:var(--blue)}footer{background:#09192a;color:#d7e0ea}.footer{min-height:118px;display:flex;align-items:center;gap:35px;font-size:12px}.footer .brand{color:white}.footer p:last-child{margin-left:auto}.mobile-call{display:none}
@media(max-width:800px){.nav{height:72px}.toggle{display:grid;gap:5px;background:none;border:0;margin-left:auto}.toggle i{height:2px;width:23px;background:white}.top-call{display:none}nav{display:none;position:absolute;top:72px;left:0;right:0;margin:0;padding:18px 24px;background:#092348;flex-direction:column;gap:18px}nav.open{display:flex}.hero{min-height:650px}.hero-foot{display:none}.section{padding:84px 0}.split,.about-grid,.contact-grid{grid-template-columns:1fr;gap:35px}.heading{display:block}.heading>p{margin-top:18px}.cards{grid-template-columns:1fr 1fr}.card{border-bottom:1px solid var(--line)}.card:nth-child(2){border-right:0}.photo>img{height:390px}.footer{flex-wrap:wrap;padding:27px 0;gap:14px}.footer p:last-child{margin-left:0;width:100%}.mobile-call{display:block;position:fixed;z-index:4;right:16px;bottom:16px;background:var(--blue);color:white;padding:14px 18px;font-size:14px;font-weight:bold;box-shadow:0 8px 24px #001c3c44}}
@media(max-width:510px){.container{width:calc(100% - 34px)}h1{font-size:42px}.hero-text>p:not(.eyebrow){font-size:16px}.actions{flex-direction:column;align-items:flex-start;gap:18px}.cards{grid-template-columns:1fr}.card{min-height:280px;border-right:0}.contact-links a{grid-template-columns:1fr auto}.contact-links small{grid-column:1/-1}.contact-links b{word-break:break-word}.footer{padding-bottom:76px}}

/* ==========================================================================
   UPGRADE STYLES (Header, Gallery, FAQ, Interactive Form, Scroll Reveal)
   ========================================================================== */

/* 1. STICKY HEADER & SCROLL EFFECT */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.3s ease;
  color: white;
  background: transparent;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--ink);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}
.site-header.scrolled .nav {
  height: 72px;
}
.site-header.scrolled .brand {
  color: var(--ink);
}
.site-header.scrolled nav a {
  color: var(--ink);
}
.site-header.scrolled .top-call {
  background: var(--blue);
  color: white;
}
.site-header.scrolled .toggle i {
  background: var(--ink);
}

/* Adjust Hero padding because of fixed header */
.hero {
  padding-top: 92px;
}

/* Scroll reveal transition classes */
.reveal-item {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal-item.show {
  opacity: 1;
  transform: translateY(0);
}

/* 2. RECENT PROJECTS GALLERY */
.portfolio {
  background: white;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.gallery-item {
  position: relative;
  height: 340px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 36, 60, 0) 40%, rgba(16, 36, 60, 0.9) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.gallery-overlay span {
  color: #81b9ff;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.gallery-overlay h4 {
  color: white;
  margin: 0;
  font-family: Manrope;
  font-size: 18px;
  font-weight: 700;
}
.gallery-item:hover img {
  transform: scale(1.06);
}
.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

/* 3. FAQ ACCORDION */
.faq {
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.accordion-item {
  background: white;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  transition: all 0.3s ease;
}
.accordion-item:hover {
  border-color: #bcd0e6;
  box-shadow: 0 4px 12px rgba(7, 89, 184, 0.03);
}
.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-family: Manrope;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  gap: 20px;
}
.accordion-header span {
  line-height: 1.4;
}
.accordion-header .chevron {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.accordion-item.active {
  border-color: var(--blue);
}
.accordion-item.active .accordion-header .chevron {
  transform: rotate(-135deg);
  border-color: var(--blue);
}
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.accordion-content p {
  padding: 0 24px 24px;
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

/* 4. CTA BUTTON OUTLINE */
.outline-white {
  border: 2px solid white;
  color: white;
  background: transparent;
  transition: all 0.3s ease;
}
.outline-white:hover {
  background: white;
  color: var(--ink);
}
.cta-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  margin-top: 10px;
}

/* 5. INTERACTIVE ESTIMATE/QUOTE SECTION */
.quote-section {
  background: white;
}
.quote-container {
  max-width: 900px;
}
.quote-header {
  text-align: center;
  margin-bottom: 40px;
}
.quote-header h2 {
  font-size: clamp(31px, 4vw, 45px);
}
.quote-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(16, 36, 60, 0.04);
  padding: 40px;
}
.form-step {
  display: none;
}
.form-step.active {
  display: block;
  animation: fadeInStep 0.4s ease forwards;
}
@keyframes fadeInStep {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.form-step h3 {
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 24px;
  font-family: Manrope;
}
.radio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}
.radio-card {
  position: relative;
  display: block;
  cursor: pointer;
}
.radio-card input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.radio-content {
  border: 2px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  height: 100%;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.radio-content .icon {
  font-size: 28px;
}
.radio-content strong {
  font-family: Manrope;
  font-size: 16px;
  color: var(--ink);
}
.radio-content p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}
.radio-card:hover .radio-content {
  border-color: #bcd0e6;
  background: var(--soft);
}
.radio-card input:checked + .radio-content {
  border-color: var(--blue);
  background: rgba(7, 89, 184, 0.04);
  box-shadow: 0 0 0 1px var(--blue);
}
.input-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group.full-width {
  grid-column: span 2;
}
.form-group label {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}
.form-group input,
.form-group textarea {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 12px 16px;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  color: var(--ink);
  transition: all 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(7, 89, 184, 0.15);
}
.form-footer {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin-top: 20px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}
.btn-next, .btn-submit {
  background: var(--blue);
  color: white;
}
.btn-next:hover, .btn-submit:hover {
  background: #064ca0;
}
.btn-prev {
  background: #e6eef7;
  color: var(--blue);
}
.btn-prev:hover {
  background: #d1e2f3;
}
.btn-reset {
  background: var(--ink);
  color: white;
  margin-top: 15px;
}
.btn-reset:hover {
  background: #0b1a2b;
}

/* Success Message */
.success-message {
  text-align: center;
  padding: 30px 0;
}
.success-icon {
  width: 64px;
  height: 64px;
  background: #e1f7ec;
  color: #10b981;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 20px;
}
.success-message h3 {
  margin: 0 0 10px;
  font-size: 24px;
}
.success-message p {
  color: var(--muted);
  max-width: 440px;
  margin: 0 auto;
  font-size: 15px;
  line-height: 1.6;
}

/* ==========================================================================
   UPGRADE RESPONSIVENESS MEDIA QUERIES
   ========================================================================== */
@media(max-width:900px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .faq-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media(max-width:650px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .gallery-item {
    height: 280px;
  }
  .radio-grid {
    grid-template-columns: 1fr;
  }
  .input-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full-width {
    grid-column: span 1;
  }
  .quote-card {
    padding: 24px;
  }
  .cta-actions {
    flex-direction: column;
    gap: 14px;
  }
  .cta-actions .button {
    width: 100%;
    justify-content: center;
  }
}