:root {
  --background: #faf9f4;
  --foreground: #1c2733;
  --primary: #1d2f3f;
  --primary-foreground: #faf9f4;
  --secondary: #2a9d8f;
  --secondary-foreground: #14202b;
  --muted: #eef1f3;
  --muted-foreground: #5c6b7a;
  --accent: #f4a825;
  --accent-foreground: #1c2733;
  --card: #ffffff;
  --border: #dfe4e8;
  --navy-deep: #12202e;
  --surface-warm: #f5f0e6;
  --surface-teal: #e6f2f0;
  --shadow-soft: 0 24px 70px rgba(18, 32, 46, .12);
  --shadow-card: 0 14px 36px rgba(18, 32, 46, .09);
}
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--background); color: var(--foreground); font-family: "DM Sans", sans-serif; }
h1, h2, h3, h4, .brand { font-family: "Manrope", sans-serif; letter-spacing: 0; }
::selection { background: var(--accent); color: var(--accent-foreground); }

.site-header { background: rgba(250, 249, 244, .94); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(223, 228, 232, .7); }
.brand-logo { height: 3rem; width: auto; background: #fff; border-radius: .35rem; padding: .15rem .4rem; box-shadow: 0 2px 10px rgba(18, 32, 46, .14); }
.brand-subtitle { font-size: .62rem; letter-spacing: .14em; }
.nav-link { color: var(--foreground) !important; font-size: .88rem; font-weight: 600; }
.nav-link:hover { color: var(--secondary) !important; }

.hero { min-height: 92vh; position: relative; isolation: isolate; display: flex; align-items: end; overflow: hidden; }
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(18,32,46,.96) 0%, rgba(18,32,46,.8) 38%, rgba(18,32,46,.08) 78%); }
.hero-content { padding: 9rem 0 6rem; max-width: 760px; color: var(--primary-foreground); }
.eyebrow { color: var(--secondary); text-transform: uppercase; font-size: .75rem; font-weight: 800; letter-spacing: .16em; }
.hero h1 { font-size: clamp(3rem, 7vw, 6.6rem); line-height: .98; font-weight: 750; max-width: 12ch; }
.hero-copy { max-width: 610px; color: rgba(250,249,244,.78); font-size: clamp(1rem, 2vw, 1.2rem); }

.btn-atlas { display: inline-flex; align-items: center; gap: .55rem; min-height: 3.15rem; border-radius: .3rem; padding: .75rem 1.35rem; font-weight: 700; border: 1px solid transparent; text-decoration: none; transition: transform .2s ease, background .2s ease; }
.btn-atlas:hover { transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: var(--accent-foreground); }
.btn-accent:hover { background: #dd931a; color: var(--accent-foreground); }
.btn-outline-light { border-color: rgba(250,249,244,.5); color: var(--primary-foreground); }
.btn-outline-light:hover { background: var(--primary-foreground); color: var(--primary); }

.trust-band { background: var(--primary); color: var(--primary-foreground); }
.trust-item { border-left: 1px solid rgba(250,249,244,.18); }
.trust-item:first-child { border-left: 0; }
.trust-item .bi { color: var(--secondary); font-size: 1.6rem; }

.section-space { padding: 7rem 0; }
.section-kicker { color: var(--secondary); text-transform: uppercase; font-size: .75rem; font-weight: 800; letter-spacing: .15em; }
.section-title { font-size: clamp(2.1rem, 4vw, 4rem); line-height: 1.08; font-weight: 750; max-width: 16ch; }
.lead-copy { color: var(--muted-foreground); font-size: 1.08rem; line-height: 1.8; }
.measure-copy { max-width: 440px; }
.metric { border-top: 2px solid var(--accent); padding-top: 1rem; }
.metric strong { font: 750 2.1rem/1 "Manrope", sans-serif; color: var(--primary); }

.product-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1.25rem; }
.product-card { grid-column: span 4; min-height: 430px; position: relative; overflow: hidden; border-radius: .45rem; box-shadow: var(--shadow-card); }
.product-card:first-child { grid-column: span 7; }
.product-card:nth-child(2) { grid-column: span 5; }
.product-card > img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.product-card:hover > img { transform: scale(1.035); }
.product-overlay { position: absolute; inset: auto 0 0; padding: 5rem 1.5rem 1.5rem; color: var(--primary-foreground); background: linear-gradient(transparent, rgba(18,32,46,.94)); }
.product-overlay p { color: rgba(250,249,244,.72); }
.product-placeholder { background: var(--surface-teal); border: 1px solid var(--border); box-shadow: none; }
.product-placeholder .product-overlay { inset: 0; padding: 2rem; color: var(--foreground); background: none; display: flex; flex-direction: column; justify-content: end; }
.product-placeholder .product-overlay p { color: var(--muted-foreground); }

.spec-list { list-style: none; margin: 0; padding: 0; }
.spec-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .45rem 0; border-bottom: 1px dashed rgba(250,249,244,.25); font-size: .85rem; }
.spec-list li:last-child { border-bottom: 0; }
.spec-list strong { color: var(--accent); font-weight: 700; white-space: nowrap; }

.service-row { padding: 1.75rem 0; border-bottom: 1px solid var(--border); }
.service-icon { color: var(--secondary); }
.service-row .bi, .service-icon.bi { font-size: 1.7rem; }

.quality-section { background: var(--navy-deep); color: var(--primary-foreground); }
.quality-copy { color: rgba(250,249,244,.68); }
.quality-bar { height: .42rem; background: rgba(250,249,244,.12); border-radius: 99px; overflow: hidden; }
.quality-fill { height: 100%; background: var(--accent); border-radius: inherit; }
.quality-88 { width: 88%; } .quality-90 { width: 90%; } .quality-92 { width: 92%; } .quality-95 { width: 95%; }
.region-pill { display: inline-flex; align-items: center; gap: .5rem; color: var(--primary-foreground); border: 1px solid rgba(250,249,244,.22); border-radius: 99px; padding: .55rem .9rem; }

.contact-section { background: var(--surface-warm); }
.form-control { border-radius: .25rem; border-color: var(--border); background: var(--card); min-height: 3.15rem; }
.form-control:focus { border-color: var(--secondary); box-shadow: 0 0 0 .2rem rgba(42,157,143,.18); }

.footer { background: var(--primary); color: var(--primary-foreground); }
.footer-muted { color: rgba(250,249,244,.62); }
.floating-whatsapp { position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 30; width: 3.4rem; height: 3.4rem; display: grid; place-items: center; border-radius: 50%; background: var(--secondary); color: var(--secondary-foreground); box-shadow: var(--shadow-soft); font-size: 1.5rem; text-decoration: none; }
.floating-whatsapp:hover { color: var(--secondary-foreground); }

.sulphur-img { object-fit: cover; height: 100%; }
@media (max-width: 991px) { .sulphur-img { max-height: 400px; width: 100%; } }

@media (max-width: 991px) {
  .navbar-collapse { padding: 1rem 0; }
  .hero { min-height: 78vh; }
  .product-card, .product-card:first-child, .product-card:nth-child(2) { grid-column: span 6; }
}
@media (max-width: 767px) {
  .section-space { padding: 4.5rem 0; }
  .hero-content { padding: 8rem 0 4rem; }
  .hero h1 { font-size: 3.35rem; }
  .navbar-brand { margin-right: 0; }
  .brand .fs-6 { font-size: .9rem !important; }
  .trust-item { border-left: 0; border-top: 1px solid rgba(250,249,244,.18); }
  .trust-item:first-child { border-top: 0; }
  .product-card, .product-card:first-child, .product-card:nth-child(2) { grid-column: 1 / -1; min-height: 360px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; } }