/* RGF Company - HTML Version */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #ffffff;
  --fg: #2b303b;
  --muted: #f3f4f6;
  --muted-fg: #6b7280;
  --card: #ffffff;
  --border: #e5e7eb;
  --primary: #373c47;
  --primary-fg: #ffffff;
  --accent: #d4922a;
  --accent-hover: #b87a1f;
  --accent-fg: #ffffff;
  --shadow-card: 0 4px 24px -4px rgba(43, 48, 59, 0.06);
  --shadow-elevated: 0 12px 40px -8px rgba(43, 48, 59, 0.12);
  --gradient-hero: linear-gradient(135deg, #2b303b 0%, #14171f 100%);
  --radius: 0.5rem;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4,h5,h6 { font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.site-header .logo img { height: 48px; width: auto; }
.nav { display: flex; align-items: center; gap: 2rem; }
.nav a { font-size: 0.875rem; font-weight: 500; color: rgba(43,48,59,0.7); transition: color 0.2s; }
.nav a:hover, .nav a.active { color: var(--accent); }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--accent); color: var(--accent-fg);
  padding: 0.625rem 1.25rem; border-radius: var(--radius);
  font-weight: 600; font-size: 0.875rem;
  border: none; cursor: pointer; transition: background 0.2s;
}
.btn:hover { background: var(--accent-hover); }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1rem; }
.btn-outline { background: transparent; color: var(--fg); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--muted); }

.menu-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--fg); }
.mobile-nav { display: none; background: var(--card); border-bottom: 1px solid var(--border); }
.mobile-nav.open { display: block; }
.mobile-nav .container { flex-direction: column; align-items: flex-start; gap: 1rem; padding: 1.5rem; height: auto; }

main { padding-top: 80px; }

/* Hero */
.hero {
  position: relative; min-height: 90vh;
  display: flex; align-items: center; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-overlay { position: absolute; inset: 0; background: var(--gradient-hero); opacity: 0.85; }
.hero .container { position: relative; z-index: 1; padding: 5rem 1.5rem; }
.hero-content { max-width: 640px; color: var(--primary-fg); }
.hero h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); margin-bottom: 1.5rem; }
.hero h1 .accent { color: var(--accent); }
.hero p { font-size: 1.125rem; color: rgba(255,255,255,0.8); margin-bottom: 2rem; max-width: 520px; }

/* Sections */
section { padding: 5rem 0; }
section.tight { padding: 3rem 0; }
.section-head { text-align: center; max-width: 36rem; margin: 0 auto 4rem; }
.section-eyebrow { color: var(--accent); font-weight: 600; font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 0.75rem; }
.section-head h2 { font-size: clamp(1.875rem, 3vw, 2.5rem); }
.bg-muted { background: var(--muted); }
.bg-dark { background: var(--gradient-hero); color: var(--primary-fg); }
.bg-dark h2, .bg-dark p { color: var(--primary-fg); }
.bg-dark p { color: rgba(255,255,255,0.7); }

/* Stats */
.stats { background: var(--card); border-bottom: 1px solid var(--border); padding: 3rem 0; }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; text-align: center; }
.stat-value { display: block; font-size: 2.25rem; font-weight: 800; color: var(--accent); font-family: 'Plus Jakarta Sans', sans-serif; }
.stat-label { font-size: 0.875rem; color: var(--muted-fg); margin-top: 0.25rem; }

/* Card grid */
.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2rem; box-shadow: var(--shadow-card); transition: box-shadow 0.3s;
}
.card:hover { box-shadow: var(--shadow-elevated); }
.icon-box {
  width: 3rem; height: 3rem; border-radius: var(--radius);
  background: rgba(212,146,42,0.1); display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem; color: var(--accent);
}
.card h3 { font-size: 1.125rem; margin-bottom: 0.5rem; }
.card p { color: var(--muted-fg); font-size: 0.875rem; }

/* Equipment carousel */
.carousel { position: relative; max-width: 1100px; margin: 0 auto; padding: 0 3rem; }
.carousel-viewport { overflow: hidden; }
.carousel-track { display: flex; gap: 1.5rem; transition: transform 0.4s ease; }
.carousel-item { flex: 0 0 calc((100% - 3rem) / 3); min-width: 0; }
.equip-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 0.75rem;
  overflow: hidden; box-shadow: var(--shadow-card); transition: box-shadow 0.3s; height: 100%;
  display: flex; flex-direction: column;
}
.equip-card:hover { box-shadow: var(--shadow-elevated); }
.equip-img { height: 13rem; overflow: hidden; }
.equip-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.equip-card:hover .equip-img img { transform: scale(1.05); }
.equip-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.equip-link { color: var(--accent); font-weight: 600; font-size: 0.875rem; margin-top: auto; display: inline-flex; gap: 0.25rem; align-items: center; }
.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 2.5rem; height: 2.5rem; border-radius: 50%;
  background: var(--card); border: 1px solid var(--border); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card); color: var(--fg);
  z-index: 2;
}
.carousel-btn:hover { background: var(--muted); }
.carousel-prev { left: 0; }
.carousel-next { right: 0; }

/* Process */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.process-step { font-size: 3rem; font-weight: 800; color: rgba(212,146,42,0.2); font-family: 'Plus Jakarta Sans', sans-serif; }

/* CTA */
.cta { text-align: center; }
.cta h2 { margin-bottom: 1rem; }
.cta p { font-size: 1.125rem; margin-bottom: 2rem; max-width: 32rem; margin-left: auto; margin-right: auto; }

/* About */
.page-head { padding: 5rem 0; background: var(--muted); }
.page-head h1 { font-size: clamp(2.25rem, 4vw, 3rem); margin-bottom: 1.5rem; }
.page-head .accent { color: var(--accent); }
.page-head .lead { font-size: 1.125rem; color: var(--muted-fg); max-width: 36rem; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-text p { margin-bottom: 1rem; color: var(--muted-fg); }
.about-stats { background: var(--muted); border-radius: 0.75rem; padding: 2.5rem; }
.about-stats .row { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.about-stats .row:last-child { margin-bottom: 0; }
.about-stats .num { font-size: 1.875rem; font-weight: 800; color: var(--accent); font-family: 'Plus Jakarta Sans', sans-serif; }
.about-stats .lbl { font-size: 0.875rem; color: var(--muted-fg); }

/* Contact form */
.contact-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.5rem; }
.form-group input, .form-group textarea {
  width: 100%; padding: 0.625rem 0.875rem; border: 1px solid var(--border);
  border-radius: var(--radius); font: inherit; background: var(--card);
}
.form-group input:focus, .form-group textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.contact-info .info-row { display: flex; gap: 1rem; margin-bottom: 1.5rem; }
.contact-info .info-row .icon-box { width: 2.5rem; height: 2.5rem; margin-bottom: 0; flex-shrink: 0; }
.contact-info .lbl { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted-fg); }
.contact-info .val { font-size: 0.875rem; font-weight: 500; }
.wa-box { background: var(--muted); border-radius: 0.75rem; padding: 2rem; margin-top: 2rem; }
.wa-box h4 { font-size: 0.875rem; margin-bottom: 0.5rem; }
.wa-box p { font-size: 0.875rem; color: var(--muted-fg); margin-bottom: 1rem; }
.alert { padding: 1rem 1.25rem; border-radius: var(--radius); margin-bottom: 1.5rem; }
.alert-success { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.alert-error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }

/* Services page */
.services-list .equip-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; }

/* Footer */
.site-footer { background: var(--gradient-hero); color: var(--primary-fg); padding: 4rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 3rem; }
.site-footer img.logo-foot { height: 48px; width: auto; margin-bottom: 1rem; filter: brightness(0) invert(1); }
.site-footer h4 { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.8); margin-bottom: 1rem; }
.site-footer ul { list-style: none; }
.site-footer li, .site-footer p { font-size: 0.875rem; color: rgba(255,255,255,0.6); margin-bottom: 0.75rem; }
.site-footer a { color: rgba(255,255,255,0.6); transition: color 0.2s; }
.site-footer a:hover { color: var(--accent); }
.social { display: flex; gap: 0.75rem; margin-top: 1rem; }
.social a { width: 2.25rem; height: 2.25rem; border-radius: 50%; background: rgba(255,255,255,0.1); display: inline-flex; align-items: center; justify-content: center; transition: background 0.2s; }
.social a:hover { background: var(--accent); color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 3rem; padding-top: 2rem; text-align: center; font-size: 0.75rem; color: rgba(255,255,255,0.4); }

/* WhatsApp floating */
.wa-float {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 100;
  width: 3.5rem; height: 3.5rem; border-radius: 50%; background: #25d366;
  display: flex; align-items: center; justify-content: center; color: white;
  box-shadow: 0 8px 24px rgba(37,211,102,0.4); transition: transform 0.2s;
}
.wa-float:hover { transform: scale(1.1); }

/* Responsive */
@media (max-width: 900px) {
  .nav { display: none; }
  .menu-toggle { display: block; }
  .grid-3, .grid-4, .process-grid, .services-list .equip-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .carousel-item { flex-basis: calc((100% - 1.5rem) / 2); }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4, .process-grid, .services-list .equip-grid, .stats-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .carousel-item { flex-basis: 100%; }
  .carousel { padding: 0 2.5rem; }
}