:root{
  --ink:#0A2536;
  --ocean-deep:#073B57;
  --ocean:#0E5C82;
  --aqua:#17A6C9;
  --aqua-light:#6FD4E8;
  --sand:#E8A33D;
  --sand-light:#F4C77A;
  --mist:#F2F8FA;
  --white:#FFFFFF;
  --line:#DCEAEF;
  --display: 'Barlow Condensed', sans-serif;
  --body: 'Inter', sans-serif;
  --radius: 10px;
  --shadow: 0 12px 32px rgba(7,59,87,0.12);
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family: var(--body);
  color: var(--ink);
  background: var(--white);
  line-height:1.6;
  overflow-x:hidden;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}
section{position:relative;}
.container{
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:700;
  line-height:1.05;
  letter-spacing:0.2px;
}
.eyebrow{
  font-family:var(--display);
  text-transform:uppercase;
  letter-spacing:3px;
  font-size:0.85rem;
  color:var(--aqua);
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:28px; height:2px;
  background:var(--sand);
  display:inline-block;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 28px;
  border-radius:6px;
  font-family:var(--display);
  font-weight:600;
  font-size:1.05rem;
  letter-spacing:0.5px;
  cursor:pointer;
  border:2px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--sand); color:var(--ocean-deep); }
.btn-primary:hover{ box-shadow:0 10px 24px rgba(232,163,61,0.4); }
.btn-outline{ border-color:rgba(255,255,255,0.6); color:var(--white); }
.btn-outline:hover{ background:rgba(255,255,255,0.12); }
.btn-ghost{ border-color:var(--ocean); color:var(--ocean); }
.btn-ghost:hover{ background:var(--ocean); color:var(--white); }
.btn-full{ width:100%; justify-content:center; }

/* ===== Header ===== */
header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  background:rgba(7,59,87,0.0);
  transition: background .3s ease, box-shadow .3s ease, padding .3s ease;
  padding:20px 0;
}
header.scrolled{
  background:rgba(7,59,87,0.96);
  backdrop-filter:blur(8px);
  box-shadow:0 6px 20px rgba(0,0,0,0.15);
  padding:12px 0;
}
/* solid header for inner pages (no full-bleed dark hero behind it) */
header.solid{
  background:rgba(7,59,87,0.96);
  backdrop-filter:blur(8px);
  box-shadow:0 6px 20px rgba(0,0,0,0.1);
}
.nav-wrap{
  display:flex; align-items:center; justify-content:space-between;
}
.logo{
  display:flex; align-items:center; gap:10px;
  font-family:var(--display);
  font-size:1.5rem; font-weight:700; color:var(--white);
  letter-spacing:0.5px;
}
.logo .drop{ color:var(--sand); display:inline-flex; }
.logo-icon{ width:26px; height:26px; flex:none; }
.footer-logo .logo-icon{ width:24px; height:24px; }
nav.main-nav ul{ display:flex; gap:34px; }
nav.main-nav a{
  color:var(--white); font-weight:500; font-size:0.98rem;
  position:relative; padding:4px 0;
}
nav.main-nav a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:2px;
  background:var(--sand); transition:width .2s ease;
}
nav.main-nav a:hover::after, nav.main-nav a.active::after{ width:100%; }
.nav-actions{ display:flex; align-items:center; gap:18px; }
.nav-phone{
  display:flex; align-items:center; gap:8px;
  color:var(--white); font-weight:600; font-size:0.95rem;
}
.nav-toggle{ display:none; background:none; border:none; cursor:pointer; }
.nav-toggle span{ display:block; width:26px; height:2px; background:var(--white); margin:6px 0; }

/* ===== Hero ===== */
.hero{
  min-height:100vh;
  display:flex; align-items:center;
  background: linear-gradient(160deg, var(--ocean-deep) 0%, var(--ocean) 55%, var(--aqua) 130%);
  position:relative;
  overflow:hidden;
  padding-top:120px;
  padding-bottom:140px;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 85% 20%, rgba(255,255,255,0.10), transparent 45%),
    radial-gradient(circle at 10% 80%, rgba(255,255,255,0.08), transparent 40%);
}
.hero-grid{
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:60px;
  align-items:center; position:relative; z-index:2;
}
.hero h1{
  font-size:clamp(2.6rem, 5vw, 4.2rem);
  color:var(--white);
  margin-bottom:22px;
}
.hero h1 .accent{ color:var(--sand-light); }
.hero p.lead{
  color:rgba(255,255,255,0.88);
  font-size:1.12rem;
  max-width:560px;
  margin-bottom:36px;
}
.hero-btns{ display:flex; flex-wrap:wrap; gap:16px; }
.hero-art{ position:relative; z-index:2; }
.hero-photo-frame{
  position:relative; border-radius:18px; overflow:hidden;
  box-shadow: 0 24px 60px rgba(4,25,38,0.45);
  border:1px solid rgba(255,255,255,0.25);
}
.hero-photo-frame img{ width:100%; height:100%; object-fit:cover; display:block; aspect-ratio:6/5; }
.hero-photo-badge{
  position:absolute; left:18px; bottom:18px;
  background:rgba(7,59,87,0.85); backdrop-filter:blur(6px);
  color:var(--white); padding:10px 16px; border-radius:10px;
  font-family:var(--display); font-size:0.95rem; letter-spacing:0.5px;
  display:flex; align-items:center; gap:8px;
}
.hero-photo-badge svg{ width:16px; height:16px; }

/* ===== Page header (inner pages) ===== */
.page-header{
  background: linear-gradient(160deg, var(--ocean-deep) 0%, var(--ocean) 100%);
  padding:170px 0 90px;
  color:var(--white);
  position:relative;
  overflow:hidden;
}
.page-header .eyebrow{ color:var(--sand-light); }
.page-header .eyebrow::before{ background:var(--white); }
.page-header h1{ font-size:clamp(2.2rem,4.4vw,3.4rem); margin-top:14px; }
.page-header p{ color:rgba(255,255,255,0.85); max-width:600px; margin-top:16px; font-size:1.05rem; }
.breadcrumb{ margin-top:18px; font-size:0.9rem; color:rgba(255,255,255,0.7); }
.breadcrumb a{ color:var(--white); font-weight:600; }

/* wave divider */
.wave-divider{
  position:absolute; left:0; right:0; bottom:-1px; line-height:0;
  z-index:3;
}
.wave-divider svg{ width:100%; height:110px; display:block; }

/* Tank fill gauge - signature element, desktop only */
.fill-gauge{
  position:fixed; right:22px; top:50%; transform:translateY(-50%);
  width:34px; height:220px; z-index:900;
  border:2px solid var(--ocean); border-radius:10px;
  background:rgba(255,255,255,0.85);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:flex; align-items:flex-end;
}
.fill-gauge .level{
  width:100%; height:8%;
  background:linear-gradient(180deg, var(--aqua-light), var(--aqua));
  transition:height .15s linear;
}
.fill-gauge .cap{
  position:absolute; top:-14px; left:50%; transform:translateX(-50%);
  width:14px; height:14px; background:var(--ocean); border-radius:3px;
}

/* ===== Sections generic ===== */
.section{ padding:100px 0; }
.section-alt{ background:var(--mist); }
.section-head{ max-width:680px; margin-bottom:52px; }
.section-head h2{ font-size:clamp(2rem,3.6vw,2.9rem); margin-top:14px; color:var(--ocean-deep); }
.section-head p{ color:#3F5A68; font-size:1.05rem; margin-top:16px; }
.center{ text-align:center; margin-left:auto; margin-right:auto; }

/* ===== About ===== */
.about-grid{
  display:grid; grid-template-columns:0.85fr 1.15fr; gap:70px; align-items:center;
}
.about-visual{
  position:relative; border-radius:16px; overflow:hidden;
  background:linear-gradient(160deg, var(--ocean) 0%, var(--ocean-deep) 100%);
  aspect-ratio: 4/5; display:flex; align-items:center; justify-content:center;
  box-shadow:var(--shadow);
}
.about-visual svg{ width:72%; height:auto; }
.about-visual img{ width:100%; height:100%; object-fit:cover; display:block; }
.about-visual .caption-tag{
  position:absolute; right:16px; bottom:16px;
  background:rgba(7,59,87,0.85); color:var(--white);
  padding:8px 14px; border-radius:8px; font-size:0.82rem; font-weight:600;
}
.about-stats{
  display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:36px;
}
.stat-card{
  background:var(--white); border:1px solid var(--line); border-radius:10px;
  padding:20px 16px; text-align:center; box-shadow:var(--shadow);
}
.stat-card .num{ font-family:var(--display); font-size:2rem; color:var(--ocean); font-weight:700; }
.stat-card .label{ font-size:0.85rem; color:#5A7684; margin-top:4px; }

/* ===== Services ===== */
.services-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:28px;
}
.service-card{
  background:var(--white); border:1px solid var(--line);
  border-radius:14px; padding:34px 28px;
  box-shadow:var(--shadow);
  transition:transform .25s ease, border-color .25s ease;
  position:relative; overflow:hidden;
}
.service-card:hover{ transform:translateY(-6px); border-color:var(--aqua); }
.service-card .icon{
  width:56px; height:56px; border-radius:12px;
  background:linear-gradient(160deg, var(--aqua-light), var(--aqua));
  display:flex; align-items:center; justify-content:center;
  margin-bottom:20px;
}
.service-card .icon svg{ width:28px; height:28px; stroke:var(--white); }
.service-card h3{ font-size:1.35rem; color:var(--ocean-deep); margin-bottom:10px; }
.service-card p{ color:#3F5A68; font-size:0.98rem; }

/* Page header background-photo variant - real project photography behind the gradient */
.page-header.bg-photo{
  background-blend-mode:normal;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.page-header.bg-photo::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(160deg, rgba(4,25,38,0.88) 0%, rgba(7,59,87,0.82) 55%, rgba(14,92,130,0.78) 100%);
  z-index:0;
}
.page-header.bg-photo .container{ position:relative; z-index:1; }

/* CTA banner background-photo variant - real project photography behind the gradient */
.cta-banner.bg-photo{
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  position:relative;
  color:var(--white);
  overflow:hidden;
}
.cta-banner.bg-photo::before{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(115deg, rgba(4,25,38,0.88) 30%, rgba(7,59,87,0.45) 100%);
  z-index:0;
}
.cta-banner.bg-photo > *{ position:relative; z-index:1; }
.cta-banner.bg-photo h3, .cta-banner.bg-photo p{ color:var(--white); }

/* ===== Why choose us ===== */
.why-section{
  background:linear-gradient(180deg, var(--ocean-deep), var(--ocean));
  color:var(--white);
}
.why-section .section-head p{ color:rgba(255,255,255,0.8); }
.why-section .eyebrow{ color:var(--sand-light); }
.why-section .eyebrow::before{ background:var(--white); }
.why-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:26px;
}
.why-item{
  display:flex; gap:16px; align-items:flex-start;
  background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.14);
  border-radius:12px; padding:24px;
}
.why-item .icon{
  flex:none; width:44px; height:44px; border-radius:50%;
  background:var(--sand); display:flex; align-items:center; justify-content:center;
}
.why-item .icon svg{ width:22px; height:22px; stroke:var(--ocean-deep); }
.why-item h4{ font-size:1.08rem; margin-bottom:6px; font-weight:600; font-family:var(--body); }
.why-item p{ font-size:0.92rem; color:rgba(255,255,255,0.78); }

/* CTA banner (used on inner pages to link to contact) */
.cta-banner{
  background:var(--sand); color:var(--ocean-deep);
  border-radius:18px; padding:44px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.cta-banner h3{ font-size:1.6rem; }
.cta-banner p{ font-size:0.98rem; margin-top:6px; }

/* ===== Contact ===== */
.contact-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:start;
}
.contact-form{
  background:var(--white); border:1px solid var(--line); border-radius:16px;
  padding:38px; box-shadow:var(--shadow);
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:16px; }
.field{ display:flex; flex-direction:column; gap:6px; margin-bottom:16px; }
.field label{ font-size:0.85rem; font-weight:600; color:var(--ocean-deep); }
.field input, .field select, .field textarea{
  padding:12px 14px; border:1.5px solid var(--line); border-radius:8px;
  font-family:var(--body); font-size:0.98rem; color:var(--ink);
  background:var(--mist); transition:border-color .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--aqua);
}
.field textarea{ resize:vertical; min-height:100px; }
.form-note{ font-size:0.82rem; color:#5A7684; margin-top:10px; }
.form-success{
  display:none; background:#E9F8ED; border:1px solid #BEE6C8; color:#1E7A3A;
  padding:14px 16px; border-radius:8px; font-size:0.95rem; margin-bottom:18px;
}
.form-error{
  display:none; background:#FDEBEA; border:1px solid #F3B9B4; color:#B3261E;
  padding:14px 16px; border-radius:8px; font-size:0.95rem; margin-bottom:18px;
}
.field.field-invalid input, .field.field-invalid select, .field.field-invalid textarea{
  border-color:#D0342C;
}

.info-card{
  background:var(--ocean-deep); color:var(--white); border-radius:16px;
  padding:38px; margin-bottom:24px;
}
.info-card h3{ font-size:1.5rem; margin-bottom:22px; }
.info-row{
  display:flex; gap:14px; align-items:flex-start; margin-bottom:20px;
}
.info-row .icon{
  flex:none; width:38px; height:38px; border-radius:50%; background:var(--aqua);
  display:flex; align-items:center; justify-content:center;
}
.info-row .icon svg{ width:18px; height:18px; stroke:var(--white); }
.info-row div p{ color:rgba(255,255,255,0.82); font-size:0.95rem; }
.info-row div a{ color:var(--white); font-weight:600; }
.areas-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:6px; }
.areas-tags span{
  background:rgba(255,255,255,0.12); border:1px solid rgba(255,255,255,0.25);
  padding:6px 14px; border-radius:20px; font-size:0.85rem;
}
.map-frame{ border-radius:16px; overflow:hidden; box-shadow:var(--shadow); border:1px solid var(--line); }
.map-frame iframe{ width:100%; height:260px; border:0; display:block; }

/* ===== Footer ===== */
footer{
  background:#052A3E; color:rgba(255,255,255,0.75);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; margin-bottom:40px;
}
.footer-logo{
  font-family:var(--display); font-size:1.6rem; color:var(--white); font-weight:700; margin-bottom:14px;
}
.footer-logo .drop{ color:var(--sand); }
.footer-col h5{ color:var(--white); font-family:var(--body); font-size:1rem; margin-bottom:16px; }
.footer-col ul li{ margin-bottom:10px; font-size:0.92rem; }
.footer-col ul li a:hover{ color:var(--aqua-light); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1); padding-top:22px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:0.85rem;
}

/* Floating action buttons (WhatsApp + Gmail) */
.float-actions{
  position:fixed; bottom:22px; right:22px; z-index:950;
  display:flex; flex-direction:column; gap:14px; align-items:flex-end;
}
.float-btn{
  width:58px; height:58px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 24px rgba(0,0,0,0.3);
  color:var(--white);
  opacity:0;
  animation: swipeInBtn .8s cubic-bezier(.25,.85,.3,1.25) forwards;
  transition: transform .18s ease, box-shadow .18s ease;
}
.float-btn:hover{ transform:translateY(-3px) scale(1.06); }
.float-btn svg{ width:28px; height:28px; }
.float-btn.whatsapp{ background:#25D366; animation-delay:.5s; }
.float-btn.gmail{ background:#EA4335; animation-delay:1s; }

@keyframes swipeInBtn{
  0%{ transform:translateX(160px) scale(.7); opacity:0; }
  65%{ transform:translateX(-8px) scale(1.08); opacity:1; }
  100%{ transform:translateX(0) scale(1); opacity:1; }
}
/* periodic eye-catching pulse, toggled by JS every few seconds */
.float-btn.attention{ animation: pulseAttention .9s ease; }
@keyframes pulseAttention{
  0%{ box-shadow:0 10px 24px rgba(0,0,0,0.3); transform:scale(1); }
  40%{ box-shadow:0 10px 26px rgba(0,0,0,0.3), 0 0 0 9px rgba(255,255,255,0.25); transform:scale(1.08); }
  100%{ box-shadow:0 10px 24px rgba(0,0,0,0.3); transform:scale(1); }
}
@media (prefers-reduced-motion: reduce){
  .float-btn{ animation:none; opacity:1; transform:none; }
  .float-btn.attention{ animation:none; }
}

/* Reveal animation */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}