:root {
  --navy: #1e3a5f;
  --navy-deep: #142940;
  --teal: #3fa0a8;
  --teal-light: #e3f2f3;
  --ink: #24303e;
  --muted: #5b6b7c;
  --bg: #ffffff;
  --bg-alt: #f5f8fa;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(20, 41, 64, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(1100px, 92%); margin-inline: auto; }

.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn-primary { background: var(--teal); color: #fff; box-shadow: 0 6px 18px rgba(63, 160, 168, 0.35); }
.btn-primary:hover { background: #35898f; }

.btn-ghost { color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.5); }
.btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, 0.08); }

.btn-outline { color: var(--navy); border: 1.5px solid var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }

.btn-nav { background: var(--teal); color: #fff; padding: 0.55rem 1.2rem; }
.btn-nav:hover { background: #35898f; }

.btn-wa-nav {
  background: #25d366;
  color: #fff;
  padding: 0.55rem 1.1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.btn-wa-nav:hover { background: #1eb85a; }
.btn-wa-nav svg { width: 17px; height: 17px; fill: currentColor; flex: none; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(20, 41, 64, 0.08);
}

.nav { display: flex; align-items: center; justify-content: space-between; padding: 0.7rem 0; }

.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand:hover { text-decoration: none; }
.brand-logo { width: 44px; height: auto; }
.brand-name { font-weight: 800; color: var(--navy); font-size: 1.05rem; letter-spacing: -0.01em; }
.brand-name small { display: block; font-size: 0.68rem; font-weight: 600; color: var(--teal); letter-spacing: 0.18em; }

.nav-links { display: flex; align-items: center; gap: 1.6rem; list-style: none; }
.nav-links a:not(.btn) { color: var(--ink); font-weight: 500; font-size: 0.95rem; }
.nav-links a:not(.btn):hover { color: var(--teal); text-decoration: none; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--navy); border-radius: 2px; transition: 0.2s; }

/* Hero */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 55%, #24507d 100%);
  color: #fff;
  padding: 6.5rem 0 7.5rem;
  overflow: hidden;
}
.hero-inner { max-width: 760px; }
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal-light);
  margin-bottom: 1.1rem;
}
.hero h1 { font-size: clamp(2.3rem, 5.5vw, 3.6rem); line-height: 1.12; font-weight: 800; letter-spacing: -0.02em; }
.hero h1 span { color: #7fd1d8; }
.hero-sub { margin: 1.4rem 0 2.2rem; font-size: 1.12rem; color: rgba(255, 255, 255, 0.85); max-width: 560px; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-wave { position: absolute; bottom: -1px; left: 0; width: 100%; height: 70px; }

/* Sections */
.section { padding: 5rem 0; }
.section-alt { background: var(--bg-alt); }

.section-head { text-align: center; max-width: 620px; margin: 0 auto 3rem; }
.section-eyebrow { color: var(--teal); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 0.5rem; }
.section-head h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); color: var(--navy); letter-spacing: -0.02em; }

/* About */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: start; }
.about-grid p { margin-bottom: 1.1rem; color: var(--muted); }
.about-grid strong { color: var(--ink); }

.facts { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.facts li {
  background: var(--teal-light);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
}
.facts strong { color: var(--navy); font-size: 0.98rem; }
.facts span { font-size: 0.82rem; color: var(--muted); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem 1.7rem;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--teal);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 16px 40px rgba(20, 41, 64, 0.13); }
.card-icon { font-size: 1.9rem; margin-bottom: 0.9rem; }
.card h3 { color: var(--navy); font-size: 1.15rem; margin-bottom: 0.6rem; }
.card p { color: var(--muted); font-size: 0.95rem; }

/* Partners */
.partners-grid { display: flex; justify-content: center; gap: 5rem; flex-wrap: wrap; }
.partner { text-align: center; }
.avatar {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--teal));
  color: #fff;
  font-weight: 700;
  font-size: 1.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  letter-spacing: 0.03em;
}
.partner h3 { color: var(--navy); font-size: 1.15rem; }
.partner p { color: var(--teal); font-weight: 600; font-size: 0.9rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; margin-bottom: 2.4rem; }
.contact-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.7rem;
  box-shadow: var(--shadow);
  text-align: center;
}
.contact-card h3 { color: var(--navy); font-size: 1.05rem; margin-bottom: 0.55rem; }
.contact-card p { color: var(--muted); font-size: 0.95rem; }
.contact-cta { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* Footer */
.site-footer { background: var(--navy-deep); color: rgba(255, 255, 255, 0.75); padding: 2.2rem 0; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 0.9rem; text-align: center; }
.footer-logo { width: 58px; filter: brightness(0) invert(1); opacity: 0.9; }
.site-footer a { color: #7fd1d8; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.6rem 4%;
    border-bottom: 1px solid rgba(20, 41, 64, 0.1);
    box-shadow: 0 14px 30px rgba(20, 41, 64, 0.12);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.7rem 0; }
  .nav-links a:not(.btn) { display: block; }
  .btn-nav { text-align: center; }
  .btn-wa-nav { justify-content: center; }

  .about-grid { grid-template-columns: 1fr; }
  .cards, .contact-grid { grid-template-columns: 1fr; max-width: 440px; margin-inline: auto; }
  .facts { grid-template-columns: 1fr 1fr; }
  .partners-grid { gap: 3rem; }
  .hero { padding: 4.5rem 0 6rem; }
}

/* WhatsApp button */
.btn-wa { background: #25d366; color: #fff; box-shadow: 0 6px 18px rgba(37, 211, 102, 0.35); }
.btn-wa:hover { background: #1eb85a; }

/* Facility band */
.facility { position: relative; line-height: 0; }
.facility img { width: 100%; height: min(60vh, 520px); object-fit: cover; }
.facility::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 41, 64, 0.75), rgba(20, 41, 64, 0) 45%);
  pointer-events: none;
}
.facility-caption {
  position: absolute;
  bottom: 1.4rem;
  left: 0;
  right: 0;
  z-index: 1;
  color: #fff;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  line-height: 1.4;
  text-align: center;
}

/* Section sub-line */
.section-sub { margin-top: 0.9rem; color: var(--muted); font-size: 1rem; }

/* Category chips */
.chips { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 0.6rem; margin-top: 2.2rem; }
.chips-label { font-weight: 600; color: var(--navy); font-size: 0.92rem; }
.chip {
  background: var(--teal-light);
  color: var(--navy);
  border: 1px solid rgba(63, 160, 168, 0.35);
  border-radius: 999px;
  padding: 0.35rem 0.95rem;
  font-size: 0.88rem;
  font-weight: 600;
}

/* Four-card grid (sourcing partners) */
.cards-4 { grid-template-columns: repeat(4, 1fr); }

/* Response note */
.response-note { text-align: center; margin: 1.4rem 0 0; color: var(--muted); font-size: 0.92rem; }

@media (max-width: 1000px) {
  .cards-4 { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
}
@media (max-width: 640px) {
  .cards-4 { grid-template-columns: 1fr; max-width: 440px; margin-inline: auto; }
}