/* ============ LogexCem International ============ */
:root {
  --bg: #1B1E23;
  --navy: #001543;
  --royal: #2B55D4;
  --royal-bright: #3E6BF0;
  --steel: #C7D3E8;
  --white: #FFFFFF;
  --whatsapp: #25D366;
  --text: #E8EDF6;
  --text-dim: #9AA7BD;
  --card: #22262D;
  --line: rgba(199, 211, 232, 0.14);
  --radius: 14px;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: min(1160px, 100% - 2.5rem);
  margin-inline: auto;
}

h1, h2, h3 { font-weight: 800; line-height: 1.15; color: var(--white); }
h2 { font-size: clamp(1.7rem, 1.2rem + 2.2vw, 2.6rem); margin-bottom: 0.9rem; }
h3 { font-size: 1.1rem; }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--royal-bright);
  margin-bottom: 0.8rem;
}

.section-lead {
  max-width: 46ch;
  color: var(--text-dim);
  margin-bottom: 2.5rem;
}

section { padding: clamp(4rem, 8vw, 7rem) 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font: 700 1rem var(--font);
  padding: 0.95rem 1.8rem;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--royal);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(43, 85, 212, 0.35);
}
.btn-primary:hover { background: var(--royal-bright); box-shadow: 0 12px 30px rgba(43, 85, 212, 0.5); }
.btn-whatsapp {
  background: var(--whatsapp);
  color: #06281a;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover { background: #3ce07a; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 88px;
  transition: height 0.3s ease;
}
.site-header.scrolled .nav { height: 68px; }

/* Stacked-opacity logo swap: both images occupy the same box, cross-fade on scroll */
.nav-logo {
  position: relative;
  display: block;
  width: clamp(140px, 18vw, 190px);
  transition: width 0.3s ease;
}
.nav-logo img { width: 100%; height: auto; display: block; transition: opacity 0.3s ease; }
.nav-logo .logo-dark { position: absolute; inset: 0; opacity: 0; }
.site-header.scrolled .nav-logo { width: clamp(118px, 15vw, 158px); }
.site-header.scrolled .logo-light { opacity: 0; }
.site-header.scrolled .logo-dark { opacity: 1; }

.nav-menu { display: flex; align-items: center; gap: 1.6rem; }
.nav-menu a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--steel);
  transition: color 0.3s ease;
}
.nav-menu a:hover { color: var(--white); }
.nav-menu .nav-cta {
  background: var(--royal);
  color: var(--white);
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  transition: background 0.3s ease;
}
.nav-menu .nav-cta:hover { background: var(--royal-bright); }
/* Scrolled (white bar) link colors — desktop only; the mobile overlay stays dark */
@media (min-width: 761px) {
  .site-header.scrolled .nav-menu a { color: var(--navy); }
  .site-header.scrolled .nav-menu a:hover { color: var(--royal); }
  .site-header.scrolled .nav-menu .nav-cta { color: var(--white); background: var(--royal); }
  .site-header.scrolled .nav-menu .nav-cta:hover { background: var(--royal-bright); }
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
  z-index: 110;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
}
.site-header.scrolled .nav-toggle span { background: var(--navy); }
/* With the dark full-screen menu open, the toggle must stay white even on a white bar */
.site-header.menu-open .nav-toggle span { background: var(--white); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background: rgba(0, 21, 67, 0.97);
    backdrop-filter: blur(14px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }
  .nav-menu.open { opacity: 1; visibility: visible; }
  .nav-menu a { font-size: 1.3rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 7rem 0 5rem;
  isolation: isolate;
}
.hero-bg, .hero-bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(27, 30, 35, 0.55) 0%, rgba(27, 30, 35, 0.35) 45%, var(--bg) 100%),
    linear-gradient(100deg, rgba(0, 21, 67, 0.75) 0%, rgba(0, 21, 67, 0.15) 60%);
}
.hero-inner { max-width: 780px; }
.hero-logo { width: clamp(200px, 30vw, 300px); margin-bottom: 2rem; }
.hero-title {
  font-size: clamp(2.1rem, 1.4rem + 4vw, 3.9rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}
.hero-title .accent { color: var(--royal-bright); }
.hero-sub {
  font-size: clamp(1rem, 0.95rem + 0.4vw, 1.2rem);
  color: var(--steel);
  max-width: 56ch;
  margin-bottom: 2.2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid rgba(199, 211, 232, 0.5);
  border-radius: 14px;
}
.hero-scroll span {
  position: absolute;
  top: 8px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--steel);
  animation: scrollhint 1.8s ease-in-out infinite;
}
@keyframes scrollhint {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------- Stats ---------- */
.stats {
  background: var(--navy);
  padding: clamp(3rem, 6vw, 4.5rem) 0;
}
.stats-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.2rem 1rem;
  text-align: center;
}
.stat { flex: 1 1 150px; max-width: 230px; }
.stat-num {
  display: block;
  font-size: clamp(2rem, 1.4rem + 3vw, 3.2rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--steel);
}

/* ---------- Split sections ---------- */
.split-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 900px) {
  .split-grid { grid-template-columns: 1fr 1fr; gap: 4rem; }
  .split-reverse .split-media { order: 2; }
}
.split-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.split-media img { width: 100%; transition: transform 0.6s ease; }
.split-media:hover img { transform: scale(1.03); }
.split-body p { color: var(--text-dim); margin-bottom: 1.2rem; }

.check-list li {
  position: relative;
  padding-left: 1.9rem;
  margin-bottom: 0.7rem;
  color: var(--text);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.32em;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--royal) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M9.5 16.2 5.8 12.5l1.4-1.4 2.3 2.3 6.3-6.3 1.4 1.4z"/></svg>') center/14px no-repeat;
}

/* ---------- Products ---------- */
.products { background: linear-gradient(180deg, var(--bg) 0%, #171a1f 100%); }
.product-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .product-grid { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(43, 85, 212, 0.55);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}
.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.badge-en { background: rgba(43, 85, 212, 0.18); color: #7c9bf5; border: 1px solid rgba(43, 85, 212, 0.4); }
.badge-astm { background: rgba(199, 211, 232, 0.12); color: var(--steel); border: 1px solid rgba(199, 211, 232, 0.3); }
.badge-clinker { background: rgba(212, 138, 43, 0.14); color: #e5a75f; border: 1px solid rgba(212, 138, 43, 0.35); }
.card h3 { margin-bottom: 0.5rem; }
.card > p { font-size: 0.92rem; color: var(--text-dim); margin-bottom: 1.1rem; }
.spec div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
}
.spec dt { color: var(--text-dim); }
.spec dd { color: var(--white); font-weight: 700; text-align: right; }

/* ---------- Certifications (light section) ---------- */
.certs {
  background: #EDF1F8;
  color: #2a3140;
}
.certs h2, .certs h3 { color: var(--navy); }
.certs .section-lead { color: #5a6579; }
.certs-logo { width: clamp(180px, 24vw, 250px); margin-bottom: 2rem; }
.certs-head { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 900px) { .certs-head { grid-template-columns: 1.2fr 1fr; gap: 3.5rem; } }
.certs-head .section-lead { margin-bottom: 0; }
.certs-head + .cert-grid { margin-top: 2.5rem; }
.certs-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 21, 67, 0.2);
}
.cert-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .cert-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
.cert {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: 0 6px 24px rgba(0, 21, 67, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cert:hover { transform: translateY(-5px); box-shadow: 0 16px 36px rgba(0, 21, 67, 0.14); }
.cert svg {
  width: 34px; height: 34px;
  fill: var(--royal);
  margin-bottom: 0.9rem;
}
.cert h3 { margin-bottom: 0.4rem; font-size: 1.02rem; }
.cert p { font-size: 0.88rem; color: #5a6579; }

/* ---------- Footprint ---------- */
.footprint {
  position: relative;
  isolation: isolate;
  color: var(--white);
}
.footprint-bg, .footprint-bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.footprint-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(0, 21, 67, 0.88) 0%, rgba(27, 30, 35, 0.9) 100%);
}
.region-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .region-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .region-grid { grid-template-columns: repeat(4, 1fr); } }
.region {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(199, 211, 232, 0.18);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.region h3 { font-size: 1rem; margin-bottom: 0.4rem; color: var(--steel); }
.region p { font-size: 0.9rem; color: var(--text-dim); }

/* ---------- Process ---------- */
.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1fr;
  margin-top: 2.5rem;
}
@media (min-width: 640px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
}
.step-num {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--royal-bright);
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
}
.step h3 { font-size: 1.02rem; margin-bottom: 0.45rem; }
.step p { font-size: 0.9rem; color: var(--text-dim); }

/* ---------- Contact ---------- */
.contact { background: var(--navy); }
.contact-grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1.1fr; gap: 4rem; } }
.contact-info p { color: var(--steel); margin-bottom: 1.6rem; max-width: 46ch; }
.contact-details { font-style: normal; display: grid; gap: 0.9rem; margin-bottom: 2.2rem; }
.contact-line {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 600;
  color: var(--white);
  transition: color 0.2s ease;
}
a.contact-line:hover { color: var(--royal-bright); }
.contact-line svg { flex: none; color: var(--royal-bright); }
.email-wrap { display: grid; gap: 0.05rem; }
.email-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.email-link {
  font-weight: 600;
  color: var(--white);
  transition: color 0.3s ease;
}
.email-link:hover { color: var(--royal); }

.copy-email {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--steel);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.copy-email:hover {
  color: var(--white);
  border-color: var(--royal);
  background: rgba(43, 85, 212, 0.3);
}
.copy-email::after {
  content: "Copied";
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--royal);
  color: var(--white);
  font: 700 0.72rem var(--font);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.copy-email.copied::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.contact-logo {
  width: clamp(180px, 22vw, 240px);
  background: var(--white);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
}

.quote-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 3vw, 2.2rem);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
  display: grid;
  gap: 1.1rem;
}
.form-row { display: grid; gap: 1.1rem; }
@media (min-width: 560px) { .form-row { grid-template-columns: 1fr 1fr; } }
.quote-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--navy);
}
.quote-form input,
.quote-form select,
.quote-form textarea {
  font: 400 0.95rem var(--font);
  color: #1c2330;
  background: #F2F5FA;
  border: 1.5px solid #DDE5F1;
  border-radius: 9px;
  padding: 0.75rem 0.9rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}
.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: none;
  border-color: var(--royal);
  box-shadow: 0 0 0 3px rgba(43, 85, 212, 0.18);
}
.quote-form textarea { resize: vertical; }
.form-note { font-size: 0.78rem; color: #7c8798; text-align: center; }

/* ---------- Floating WhatsApp button ---------- */
.whatsapp-fab {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #06281a;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.45);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.whatsapp-fab:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 14px 34px rgba(37, 211, 102, 0.55);
}

/* ---------- Footer ---------- */
.site-footer {
  background: #10131a;
  border-top: 1px solid var(--line);
  padding: 3rem 0 2.5rem;
}
.footer-grid {
  display: grid;
  gap: 1.8rem;
  justify-items: center;
  text-align: center;
}
.footer-logo { width: 180px; }
.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.4rem;
}
.site-footer nav a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color 0.2s ease;
}
.site-footer nav a:hover { color: var(--white); }
.footer-contact {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.footer-copy { font-size: 0.82rem; color: #667088; }

/* ---------- Motion safety ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}