/* ================= BASE / VARIABLES ================= */
:root{
  --navy:#06284a;
  --navy-2:#0b2f55;

  /* Subtler accent system */
  --orange:#e46f1e;        /* primary accent */
  --orange-2:#f2a45f;      /* hover / secondary accent */
  --orange-soft:#fff1e6;   /* subtle background tint */

  --light:#f4f8fc;
  --text:#0b0f14;
  --muted:#6b7280;
  --border:#e6edf5;
  --radius:18px;
  --shadow: 0 10px 22px rgba(12, 25, 44, 0.08);
  --maxw: 1200px;
  font-synthesis: style;
}

*{box-sizing:border-box; margin:0; padding:0;}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: #fff;
  line-height:1.55;
}
a{color: inherit; text-decoration:none;}
img{max-width:100%; display:block;}

/* ================= UTILS ================= */
.container{
  width: min(100% - 32px, var(--maxw));
  margin-inline:auto;
}
.center{text-align:center;}
.left{text-align:left;}
.muted{color:var(--muted);}
.lead{font-size:1.05rem;}

.section{ padding: 80px 0; }
.section-title{
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  font-weight: 800;
  margin-bottom: 10px;
}
.section-subtitle{
  color: var(--muted);
  max-width: 680px;
  margin: 0 auto 28px;
  font-size:1.05rem;
  line-height:1.6;
}
.section-subtitle.left{margin-left:0;}

/* ================= BUTTONS ================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight:700;
  border:2px solid transparent;
  transition: all .15s ease;
  cursor:pointer;
  gap:8px;
  white-space:nowrap;
}
.btn-primary{
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
  box-shadow: 0 8px 18px rgba(228,111,30,0.22);
}
.btn-primary:hover{
  transform: translateY(-2px);
  opacity:.98;
  background: var(--orange-2);
  border-color: var(--orange-2);
}
.btn-outline{
  background:#fff;
  border-color: var(--navy);
  color: var(--navy);
}
.btn-outline:hover{
  background: var(--navy);
  color:#fff;
  transform: translateY(-2px);
}
.btn-disabled{
  opacity:.55;
  background:#f2f4f7;
  border:1px solid var(--border);
  color:#999;
  cursor:not-allowed;
}

/* WhatsApp CTA */
.btn-whatsapp{
  border-color:#25D366;
  color:#0b7a3b;
}
.btn-whatsapp:hover{
  background:#25D366;
  color:#fff;
  border-color:#25D366;
}

/* Focus for accessibility */
.btn:focus-visible,
.nav-link:focus-visible,
.theme-toggle:focus-visible{
  outline: 3px solid rgba(228,111,30,0.45);
  outline-offset: 2px;
  border-radius: 8px;
}

/* ================= NAVBAR ================= */
.navbar{
  position: sticky;
  top:0;
  z-index: 50;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow: 0 4px 14px rgba(0,0,0,0.04);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 0;
  gap:16px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.logo{
  width:48px; height:48px;
  border-radius:12px;
  display:grid; place-items:center;
  background: var(--navy);
  color:#fff;
  font-weight:800;
}
.logo.small{width:36px;height:36px;font-size:.9rem;}
.brand-text{display:flex; flex-direction:column; line-height:1.1;}
.brand-title{font-weight:800; font-size:.95rem; letter-spacing:.03em;}
.brand-sub{font-size:.85rem; color:var(--muted);}

.nav-links{
  display:flex;
  align-items:center;
  gap:20px;
}
.nav-link{
  font-weight:600;
  color:#111827;
  padding:8px 2px;
  position:relative;
}
.nav-link.active::after,
.nav-link:hover::after{
  content:"";
  position:absolute;
  left:0; right:0; bottom:-8px;
  height:3px;
  background:var(--orange);
  border-radius:3px;
}
.nav-cta{margin-left:auto;}

/* ================= THEME TOGGLE ================= */
.theme-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--text);
  font-weight:700;
  cursor:pointer;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.theme-toggle:hover{
  transform: translateY(-1px);
  border-color: var(--orange);
}
.theme-toggle-icon{font-size:1.05rem; line-height:1;}
.theme-toggle-text{font-size:.9rem;}

.hamburger{
  display:none;
  background:none;
  border:none;
  width:40px;height:40px;
  cursor:pointer;
  position:relative;
}
.hamburger span{
  position:absolute; left:8px; right:8px;
  height:2px; background:#111;
  transition:all .2s ease;
}
.hamburger span:nth-child(1){top:12px;}
.hamburger span:nth-child(2){top:19px;}
.hamburger span:nth-child(3){top:26px;}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.active span:nth-child(2){opacity:0;}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ================= HERO ================= */
.hero{
  padding: 70px 0 40px;
  background: linear-gradient(#fff, #f7fbff);
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items:center;
}
.kicker{
  font-size:.9rem;
  font-weight:800;
  color: var(--orange);
  letter-spacing:.04em;
  margin-bottom:12px;
}
.hero-title{
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight:900;
  line-height:1.05;
  margin-bottom:14px;
}
.hero-subtitle{
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  color:#374151;
  font-weight:800;
  margin-bottom:12px;
}
.hero-text{
  color:#4b5563;
  font-size:1.05rem;
  max-width:560px;
  margin-bottom:14px;
}
.values-row{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin: 12px 0 14px;
}
.value{
  display:flex;
  align-items:center;
  gap:8px;
  background:#fff;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  font-weight:600;
}
.value-icon{
  width:26px;height:26px;
  display:grid; place-items:center;
  background: var(--orange-soft);
  border-radius:50%;
  color: var(--orange);
  font-weight:800;
}
.trust-line{
  font-size:.95rem;
  color: var(--muted);
  margin: 8px 0 18px;
}
.hero-cta{display:flex; gap:12px; flex-wrap:wrap;}

/* HERO IMAGE (background) */
.hero-placeholder{
  min-height: 360px;
  border-radius: 22px;
  border:2px dashed #22304a;
  box-shadow: var(--shadow);

  background-image: url("../assets/images/construction-site.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  display:block;
  padding:0;
  position:relative;
}
/* Hide placeholder icon/text */
.hero-placeholder *{display:none;}

/* Subtle overlay so image sits nicely in dark/light */
.hero-placeholder::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(
    135deg,
    rgba(6,40,74,0.08),
    rgba(0,0,0,0.10)
  );
  pointer-events:none;
  border-radius: 22px;
}

.placeholder-icon{
  font-size:2.2rem;
  margin-bottom:6px;
}

/* ================= ABOUT IMAGE (background) ================= */
.about-img{
  min-height:240px;
  border-radius:22px;
  border:2px dashed #c8d7e8;
  box-shadow: var(--shadow);

  background-image: url("../assets/images/about-us.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  display:block;
  padding:0;
  position:relative;
}

/* Hide placeholder icon/text inside About box */
.about-img *{ display:none; }

/* Optional subtle overlay to unify with theme */
.about-img::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(
    135deg,
    rgba(6,40,74,0.06),
    rgba(0,0,0,0.10)
  );
  pointer-events:none;
  border-radius:22px;
}

/* ================= GRIDS / CARDS ================= */
.service-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap:18px;
  margin-top: 28px;
}
.service-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius: 16px;
  padding:18px;
  box-shadow: var(--shadow);
  text-align:left;
  transition: transform .15s ease, box-shadow .15s ease;
}
.service-card:hover{
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(12,25,44,.12);
}
.service-icon{
  width:46px;height:46px;
  border-radius: 12px;
  background: var(--orange-soft);
  display:grid; place-items:center;
  font-size:1.35rem;
  margin-bottom:12px;
  color: var(--orange);
}
.service-card h4{
  font-size:1.1rem;
  margin-bottom:8px;
}
.service-card p{color:var(--muted); font-size:.98rem;}

.two-col{grid-template-columns:repeat(2,1fr);}
.three-col{grid-template-columns:repeat(3,1fr);}

/* ================= WHY-US ================= */
.why-us{background: var(--light);}
.why-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:30px;
  align-items:center;
}
.why-list{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:14px;
  margin-top:12px;
}
.why-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.why-check{
  width:28px;height:28px;
  display:grid; place-items:center;
  background: var(--orange-soft);
  border-radius:50%;
  color: var(--orange);
  font-weight:900;
  margin-top:2px;
}

/* ================= PROJECTS ================= */
.project-grid{
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap:20px;
  margin-top: 28px;
}
.project-card{
  background:#fff;
  border-radius: 16px;
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .15s ease;
}
.project-card:hover{
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(12,25,44,.12);
}

/* Updated to support real images */
.project-image{
  height:220px;
  background:#edf3f9;
  overflow:hidden;
  display:block;
  position:relative;
}
.project-image img{
  width:100%;
  height:100%;
  object-fit: cover;
  object-position: center;
  display:block;
  transform: scale(1);
  transition: transform .35s ease;
}
.project-card:hover .project-image img{
  transform: scale(1.06);
}
.project-image::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.00),
    rgba(0,0,0,0.18)
  );
  pointer-events:none;
}

.project-body{
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.badge{
  display:inline-block;
  background: var(--orange-soft);
  color: var(--orange);
  font-weight:700;
  font-size:.78rem;
  padding:6px 10px;
  border-radius:999px;
  margin-top:4px;
  width: fit-content;
}
.project-meta{
  display:flex;
  justify-content:space-between;
  color:var(--muted);
  border-top:1px solid var(--border);
  padding-top:10px;
  margin-top:6px;
  font-size:.92rem;
}

/* ================= ABOUT MVV ================= */
.about-mvv{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:18px;
}
.mvv-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  padding:14px;
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .15s ease;
}
.mvv-card:hover{
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(12,25,44,.10);
}
.mvv-card h4{margin-bottom:6px;}

/* ================= CONTACT ================= */
.contact .why-grid{align-items:start;}
.contact-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius: 14px;
  padding:14px;
  margin-top:12px;
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .15s ease;
}
.contact-card:hover{
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(12,25,44,.10);
}
.map-placeholder{
  min-height:220px;
  margin-top:18px;
  background:#edf3f9;
  border:2px dashed #c8d7e8;
  border-radius: 22px;
}

.rfq-form{
  background:#fff;
  border:1px solid var(--border);
  border-radius: 16px;
  padding:16px;
  box-shadow: var(--shadow);
  margin-top:8px;
}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
}
.form-group{
  display:flex;
  flex-direction:column;
  gap:6px;
}
label{font-weight:700; font-size:.95rem;}
input,select,textarea{
  width:100%;
  border:1px solid var(--border);
  padding:10px 12px;
  border-radius:10px;
  font-size:1rem;
  outline:none;
  background:#fff;
  color:var(--text);
}
input:focus, select:focus, textarea:focus{
  border-color: var(--navy);
  box-shadow:0 0 0 3px rgba(6,40,74,0.08);
}

/* ================= FOOTER ================= */
.footer{
  background: var(--navy);
  color:#fff;
  padding-top:50px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr .9fr .8fr;
  gap:20px;
  padding-bottom:26px;
  border-bottom:1px solid rgba(255,255,255,0.12);
}
.footer-links{
  list-style:none;
  margin-top:8px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.footer a{color:#e8eef7;}
.footer a:hover{color:#fff; text-decoration:underline;}
.footer-logo{display:flex; align-items:center; gap:10px; margin-bottom:10px;}
.socials{display:flex; gap:8px; margin-top:6px;}
.socials a{
  width:28px;height:28px;
  display:grid; place-items:center;
  background:rgba(255,255,255,0.12);
  border-radius:50%;
  font-weight:800;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:16px 0;
  font-size:.95rem;
  color:#cbd5e1;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom-links{display:flex; gap:14px;}

/* ================= FLOATING WHATSAPP ================= */
.whatsapp-float{
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: white;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  box-shadow: 0 10px 22px rgba(0,0,0,0.22);
  z-index: 999;
  transition: transform .15s ease, opacity .15s ease;
}
.whatsapp-float:hover{
  transform: translateY(-3px);
  opacity: .95;
}

/* ================= RESPONSIVE ================= */
@media (max-width: 1024px){
  .about-mvv{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width: 768px){
  .hero-grid,
  .why-grid{grid-template-columns:1fr;}
  .project-grid{grid-template-columns:repeat(2,1fr);}
  .form-grid{grid-template-columns:1fr;}
  .three-col{grid-template-columns:repeat(2,1fr);}

  .nav-links{
    position:fixed;
    top:70px; right:0; left:0;
    background:#fff;
    padding:14px 18px;
    flex-direction:column;
    gap:10px;
    border-bottom:1px solid var(--border);
    transform:translateY(-120%);
    transition:transform .2s ease;
  }
  .nav-links.open{transform:translateY(0);}
  .hamburger{display:block;}
  .nav-cta{display:none;}

  .nav-link.active::after,
  .nav-link:hover::after{
    bottom: -2px;
  }
}
@media (max-width: 520px){
  .three-col{grid-template-columns:1fr;}
  .project-grid{grid-template-columns:1fr;}
  .about-mvv{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column; gap:8px;}
}

/* ================= MANUAL DARK THEME (data-theme) ================= */
[data-theme="dark"]{
  --navy:#0b1220;
  --navy-2:#111a2e;

  --orange:#f08a3e;
  --orange-2:#ffb070;
  --orange-soft:#2a1a10;

  --light:#0f172a;
  --text:#e5e7eb;
  --muted:#9aa3b2;
  --border:#1f2937;
  --shadow: 0 10px 22px rgba(0,0,0,0.40);
  background:#0b1220;
}

[data-theme="dark"] body{ background:#0b1220; }

[data-theme="dark"] .navbar,
[data-theme="dark"] .service-card,
[data-theme="dark"] .project-card,
[data-theme="dark"] .mvv-card,
[data-theme="dark"] .contact-card,
[data-theme="dark"] .rfq-form{
  background:#0f172a;
  border-color: var(--border);
}

[data-theme="dark"] .hero{
  background: linear-gradient(#0b1220, #0f172a);
}

[data-theme="dark"] .hero-subtitle,
[data-theme="dark"] .nav-link{
  color: var(--text);
}

[data-theme="dark"] .hero-placeholder{
  border-color:#334155;
}
[data-theme="dark"] .hero-placeholder::after{
  background: linear-gradient(
    135deg,
    rgba(240,138,62,0.08),
    rgba(0,0,0,0.28)
  );
}

/* About image dark mode tuning */
[data-theme="dark"] .about-img{
  border-color:#334155;
}
[data-theme="dark"] .about-img::after{
  background: linear-gradient(
    135deg,
    rgba(240,138,62,0.06),
    rgba(0,0,0,0.22)
  );
}

[data-theme="dark"] .project-image{
  background:#111a2e;
}
[data-theme="dark"] .project-image::after{
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.00),
    rgba(0,0,0,0.28)
  );
}

[data-theme="dark"] .btn-outline{
  background:transparent;
  color: var(--text);
  border-color:#334155;
}
[data-theme="dark"] .btn-outline:hover{
  background:#1f2937;
  border-color:#1f2937;
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea{
  background:#0b1220;
  color:var(--text);
  border-color:var(--border);
}
[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus,
[data-theme="dark"] textarea:focus{
  border-color: var(--orange);
  box-shadow:0 0 0 3px rgba(240,138,62,0.20);
}

[data-theme="dark"] .footer{ background:#070c16; }

[data-theme="dark"] .theme-toggle{
  background:#0f172a;
  color:var(--text);
  border-color:var(--border);
}

/* Optional: fall back to system if user never toggles */
@media (prefers-color-scheme: dark){
  :root:not([data-theme]){
    color-scheme: dark;
  }
}