/* assets/styles.css
   Ultra-Modern Minimal (Apple-inspired) CSS for Valdo Construction.
   Includes: 12-column grid, translucent panels, full-screen overlay mobile menu.
*/

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&display=swap');

:root{
  --bg: #ffffff;
  --text: #071029;
  --muted: #566179;
  --accent: #0a84ff;
  --accent-2: #0667e8;
  --glass-shadow: 0 8px 28px rgba(10,132,255,0.06);
  --card-shadow: 0 8px 24px rgba(9,18,33,0.06);
  --radius: 12px;
  --container: 1200px;
  --gutter: 24px;
}

/* Reset */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(180deg,#ffffff 0%, #fbfdff 100%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  font-size:16px;
}

/* Container + Grid */
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gutter);
}
.col-1{grid-column:span 1}
.col-2{grid-column:span 2}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-10{grid-column:span 10}
.col-11{grid-column:span 11}
.col-12{grid-column:span 12}

/* Tablet */
@media (max-width:900px){
  .grid{grid-template-columns:repeat(6,1fr)}
  .col-6,.col-4,.col-3{grid-column:span 6}
}

/* Mobile */
@media (max-width:600px){
  .grid{grid-template-columns:repeat(4,1fr)}
  .col-12,.col-4,.col-6{grid-column:span 4}
}

/* Header */
.header{
  position:sticky; top:0; z-index:200;
  backdrop-filter: blur(8px);
  background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,255,255,0.6));
  border-bottom:1px solid rgba(9,18,33,0.04);
  box-shadow: 0 6px 18px rgba(9,18,33,0.03);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:16px 24px;
}

/* Logo clean */
.logo{
  display:flex;
  align-items:center;
  justify-content:center;
  width:auto;
  height:auto;
  background:none !important;
}
.logo img{
  display:block;
  max-width:160px;
  height:auto;
  object-fit:contain;
}

/* Mobile logo adjustments */
@media (max-width:600px){
  .logo img{
    max-width:130px;
  }
}

/* Desktop Navigation */
.nav{
  display:flex;
  gap:16px;
  align-items:center;
}
.nav a{
  color:var(--muted);
  text-decoration:none;
  padding:8px 10px;
  border-radius:10px;
  font-weight:600;
}
.nav a:hover{
  background:rgba(10,132,255,0.04);
  color:var(--text);
}
.nav a.active{
  color:var(--text);
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  border-radius:12px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
}
.btn-outline{
  color:var(--accent);
  border:1px solid rgba(10,132,255,0.2);
  background:none;
}
.btn-solid{
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
  color:#fff;
  box-shadow:0 8px 24px rgba(10,132,255,0.15);
}

/* Hero */
.hero{padding:64px 0}
.hero-card{
  background:linear-gradient(180deg, rgba(255,255,255,0.92), rgba(255,255,255,0.88));
  border-radius:var(--radius);
  padding:40px;
  box-shadow:var(--card-shadow);
  display:flex;
  gap:28px;
  align-items:center;
}
.kicker{
  color:var(--accent);
  font-weight:700;
  letter-spacing:1px;
  font-size:12px;
}
.lead{color:var(--muted);font-size:18px}

/* Placeholder */
.svg-placeholder{
  width:100%;
  height:100%;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(10,132,255,0.03);
  border:1px solid rgba(10,132,255,0.04);
  box-shadow:var(--glass-shadow);
}

/* Cards */
.card{
  padding:20px;
  border-radius:var(--radius);
  background:rgba(255,255,255,0.95);
  border:1px solid rgba(9,18,33,0.05);
  box-shadow:var(--card-shadow);
}
.section{padding:48px 0}

/* Services */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
@media (max-width:900px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .services-grid{grid-template-columns:1fr}
}

/* Gallery */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
@media (max-width:900px){
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .gallery-grid{grid-template-columns:1fr}
}

/* Form */
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}
@media (max-width:900px){
  .form-grid{grid-template-columns:1fr}
}
.input, textarea, select{
  width:100%;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid rgba(9,18,33,0.08);
  background:#fff;
  font-size:15px;
}

/* Sidebar */
.sidebar{
  padding:20px;
  border-radius:12px;
  background:#fff;
  border:1px solid rgba(10,132,255,0.08);
}

/* Footer */
.footer{
  padding:28px 0;
  margin-top:48px;
  border-top:1px solid rgba(9,18,33,0.06);
  color:var(--muted);
  font-size:14px;
}

/* WhatsApp FAB */
.fab{
  position:fixed;
  right:20px;
  bottom:20px;
  width:56px;
  height:56px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 10px 30px rgba(10,132,255,0.15);
  background:linear-gradient(180deg,var(--accent),var(--accent-2));
  color:white;
  z-index:500;
}

/* ----------------------------- */
/* FULL SCREEN OVERLAY MOBILE MENU */
/* ----------------------------- */

/* Hamburger Icon */
.hamburger{
  display:none;
  flex-direction:column;
  gap:6px;
  cursor:pointer;
}
.hamburger span{
  width:26px; height:3px;
  background:var(--text);
  border-radius:3px;
  transition:0.3s;
}

/* Show hamburger on mobile */
@media (max-width:900px){
  .hamburger{display:flex;}
  .desktop-nav{display:none;}
}

/* Overlay Menu */
.overlay-menu{
  position:fixed;
  top:0; left:0;
  width:100%; height:100%;
  background:rgba(255,255,255,0.98);
  backdrop-filter:blur(8px);
  opacity:0;
  visibility:hidden;
  transition:0.3s ease-in-out;
  z-index:3000;
}
.overlay-menu.open{
  opacity:1;
  visibility:visible;
}
.no-scroll{overflow:hidden}

/* Overlay Inner */
.overlay-inner{
  padding:40px 24px;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:center;
  text-align:center;
}

/* Close Button */
.close-btn{
  position:absolute;
  top:24px; right:24px;
  font-size:42px;
  font-weight:300;
  text-decoration:none;
  color:var(--text);
}

/* Links */
.overlay-links{
  display:flex;
  flex-direction:column;
  gap:22px;
}
.overlay-links a{
  font-size:24px;
  color:var(--text);
  font-weight:700;
  text-decoration:none;
}
.overlay-links a:hover{
  color:var(--accent);
}

.overlay-links .btn-solid{
  padding:12px 26px;
  font-size:20px;
  width:max-content;
  margin:0 auto;
}

/* Utilities */
.text-center{text-align:center}
.mt-8{margin-top:32px}
.mb-8{margin-bottom:32px}
.small{font-size:13px;color:var(--muted)}
.alert{
  padding:12px 16px;
  border-radius:10px;
  background:#e8f2ff;
  border:1px solid rgba(10,132,255,0.12);
}