/* ========== Base & Theme ========== */
:root{
  --bg:#0a0f0f;
  --panel:#0f1515;
  --muted:#c9d3d3;
  --text:#eaf2f2;
  --brand:#0aa3a0;
  --brand-2:#46d1c9;
  --accent:#ffd166;
  --card:#121a1a;
  --border:#1c2424;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: "Outfit", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color:var(--text);
  background:linear-gradient(180deg, #538383 0%, #659191 60%);
  line-height:1.6;
}

/* Typography */
h1,h2,h3,h4{margin:0 0 .6rem}
h1{font-size:clamp(2rem, 3.4vw, 3rem); line-height:1.1;}
h2{font-size:clamp(1.6rem, 2.4vw, 2.2rem)}
h3{font-size:clamp(1.2rem, 1.8vw, 1.4rem)}
.lead{font-size:clamp(1rem,1.4vw,1.15rem); color:var(--muted)}
.sub{color:var(--muted); margin-top:.2rem}

/* Layout helpers */
.container{width:min(1100px, 92%); margin-inline:auto}
.section{padding:72px 0}
.section-alt{background:linear-gradient(180deg, #0b1212, #0a0f0f)}
.grid-2{display:grid; gap:32px; grid-template-columns: 1.1fr 1fr}
@media (max-width: 900px){ .grid-2{grid-template-columns:1fr} }

/* Buttons */
.btn{
  display:inline-block; padding:12px 18px; border-radius:14px;
  background:linear-gradient(90deg, var(--brand), var(--brand-2));
  color:#001; text-decoration:none; font-weight:700; box-shadow: var(--shadow);
  border:1px solid #0f3; transition: transform .15s ease, opacity .15s;
}
.btn:hover{ transform: translateY(-2px) }
.btn-ghost{
  background:transparent; color:var(--text); border:1px solid var(--brand);
}
.btn-small{ padding:8px 12px; font-size:.95rem }

/* Header & Nav */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,15,15,.8); backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex; align-items:center; justify-content:space-between; padding:12px 0}
.logo{font-weight:800; letter-spacing:.3px; color:var(--text); text-decoration:none}
.logo span:first-child{color:var(--brand)}
.main-nav{display:flex; gap:20px; align-items:center}
.main-nav a{color:var(--text); text-decoration:none; padding:8px 10px; border-radius:10px}
.main-nav a:hover{background:#0d1414}
.nav-toggle{display:none}
.hamburger{display:none; width:40px; height:32px; cursor:pointer}
.hamburger span{display:block; height:3px; background:var(--text); margin:6px 0; border-radius:3px}

/* Mobile nav (pure CSS) */
@media (max-width: 860px){
  .hamburger{display:block}
  .main-nav{
    position:absolute; inset:60px 0 auto 0;
    background:#0a1111; border-bottom:1px solid var(--border);
    display:grid; gap:0; transform:scaleY(0); transform-origin: top;
    transition:transform .2s ease;
  }
  .main-nav a{padding:14px 20px; border-radius:0; border-top:1px solid var(--border)}
  .nav-toggle:checked ~ .main-nav{ transform:scaleY(1) }
}

/* Hero */
.hero{
  padding:64px 0 32px;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(10,163,160,.18), transparent 60%),
    linear-gradient(180deg, rgba(10,15,15,0) 0, rgba(7,12,12,.8) 70%);
}
.hero-grid{display:grid; gap:28px; grid-template-columns: 1.05fr 1fr; align-items:center}
.hero-media img{width:100%; height:auto; border-radius:22px; box-shadow: var(--shadow); border:1px solid var(--border)}
.cta-row{display:flex; gap:12px; margin-top:14px}
/*.hero-media{ background-image: ;}*/
@media (max-width: 900px){ .hero-grid{grid-template-columns:1fr} }

/* Cards & media */
.card{
  background:var(--card); border:1px solid var(--border);
  border-radius:20px; overflow:hidden; box-shadow: var(--shadow);
}
.card img{display:block; width:100%; height:auto}
.card-body{padding:18px 18px 20px}
.cards{display:grid; grid-template-columns: repeat(3,1fr); gap:18px}
@media (max-width: 1000px){ .cards{grid-template-columns: repeat(2,1fr)} }
@media (max-width: 680px){ .cards{grid-template-columns: 1fr} }

.media-stack img{width:100%; height:auto; display:block}
.media-stack figcaption{padding:10px 14px; background:#0c1313; border-top:1px solid var(--border); color:var(--muted); font-size:.95rem}

/* Lists */
.checklist{padding-left:18px}
.checklist li{margin:.35rem 0}
.bullets{padding-left:18px}
.bullets li{margin:.35rem 0}

/* Guide grid */
.guide-grid{display:grid; gap:18px; grid-template-columns: repeat(3, 1fr)}
.guide-card{background:var(--panel); border:1px solid var(--border); border-radius:16px; padding:18px}
@media (max-width: 1000px){ .guide-grid{grid-template-columns: repeat(2, 1fr)} }
@media (max-width: 680px){ .guide-grid{grid-template-columns: 1fr} }

/* Gallery masonry (pure CSS) */
.masonry{
  column-count:3; column-gap:14px;
}
.masonry img{
  width:100%; margin:0 0 14px; border-radius:16px; border:1px solid var(--border); box-shadow: var(--shadow);
}
@media (max-width: 1000px){ .masonry{column-count:2} }
@media (max-width: 600px){ .masonry{column-count:1} }

/* Contact */
.contact-form{
  margin:10px 0 16px; background:var(--panel); border:1px solid var(--border);
  border-radius:16px; padding:16px;
}
.form-row{display:grid; gap:6px; margin-bottom:12px}
input, textarea{
  width:100%; padding:12px 12px; border-radius:12px; border:1px solid #203030;
  background:#0a1111; color:var(--text); outline:none;
}
input:focus, textarea:focus{ border-color: var(--brand); box-shadow: 0 0 0 3px rgba(10,163,160,.15) }

.contact-meta{color:var(--muted)}
.map-embed{min-height:340px}

/* Footer */
.site-footer{background:#080e0e; border-top:1px solid var(--border); margin-top:18px}
.footer-grid{display:grid; gap:18px; grid-template-columns: 1.2fr .8fr .8fr; padding:28px 0}
.footer-links{list-style:none; padding:0; margin:0}
.footer-links li{margin:.35rem 0}
.footer-links a{color:var(--text); text-decoration:none}
.footer-links a:hover{text-decoration:underline}
.socials{display:flex; gap:10px; margin-top:6px}
.icon{display:grid; place-items:center; width:40px; height:40px; border:1px solid var(--border); border-radius:12px; background:#0c1313}
.icon svg{width:20px; height:20px; fill:var(--text)}
.brand .logo.small{display:inline-block; font-weight:800; text-decoration:none; color:var(--text)}
.muted{color:var(--muted)}
.copyright{text-align:center; padding:14px 0; color:#9db; border-top:1px solid var(--border); font-size:.95rem}

/* Accessibility helpers */
.visually-hidden{position:absolute !important; height:1px; width:1px; overflow:hidden; clip:rect(1px,1px,1px,1px); white-space:nowrap}