:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2F80ED;
  --primary-600: #1E6FE3;
  --accent: #56CCF2;
  --border: #e2e8f0;
  --hero-h: 70vh;
  --hero-min-h: 520px;
  --hero-h-mobile: 52vh;
  --hero-min-h-mobile: 360px;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--text); text-decoration: none; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

.topbar { background: linear-gradient(180deg, #0b1020 0%, #0a0f1a 100%); border-bottom: 1px solid rgba(255,255,255,.08); font-size: 14px; color: #e2e8f0; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; padding: 8px 16px; }
.topbar-right a { margin-left: 16px; color: #cbd5e1; }
.topbar a { color: #cbd5e1; }
.topbar a:hover { color: #ffffff; }

.navbar { position: sticky; top: 0; z-index: 30; background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(8px); border-bottom: 1px solid var(--border); box-shadow: 0 4px 12px rgba(0,0,0,.06); }
.navbar::after { content: ""; position: absolute; bottom: -1px; left: 0; height: 3px; width: 100%; background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary)); background-size: 200% 100%; animation: navAccent 8s linear infinite; }
.navbar.scrolled { background: #ffffff; box-shadow: 0 8px 18px rgba(0,0,0,.08); }
.navbar { overflow: visible; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; }
.brand { font-weight: 700; letter-spacing: 0.3px; display: inline-flex; align-items: center; gap: 10px; }
.brand-logo { width: 320px; height: auto; display: inline-block; transition: transform .3s ease, filter .3s ease; animation: logoReveal .8s ease-out both; filter: drop-shadow(0 2px 6px rgba(47,128,237,.25)); }
.brand:hover .brand-logo { transform: scale(1.05) rotate(-2deg); filter: drop-shadow(0 10px 20px rgba(47,128,237,.35)); }
.logo-bounce { animation: logoBounce .6s ease-out; }
.footer .brand-logo { width: 240px; height: auto; }
.nav-links { list-style: none; display: flex; gap: 20px; margin: 0; padding: 0; align-items: center; }
.nav-links a { color: #0f172a; padding: 8px 6px; display: inline-flex; align-items: center; font-weight: 600; }
.nav-links a:hover { color: var(--primary); }
.nav-links li { position: relative; }
.has-dropdown > a { display: inline-flex; align-items: center; gap: 6px; }
.has-dropdown > a::after { content: "▾"; font-size: 12px; color: #0f172a; }
.dropdown { position: absolute; top: 100%; left: 0; background: #ffffff; border: 1px solid var(--border); border-radius: 10px; padding: 8px; display: none; min-width: 220px; z-index: 30; }
.dropdown { top: 100%; box-shadow: 0 10px 24px rgba(0,0,0,.08); }
.dropdown li { margin: 0; }
.dropdown a { display: block; padding: 8px 10px; color: var(--muted); border-radius: 8px; }
.dropdown a:hover { color: var(--text); background: #f1f5f9; }
.nav-toggle { width: 36px; height: 32px; border: 1px solid var(--border); background: transparent; display: none; position: relative; }
.nav-toggle::before, .nav-toggle::after { content: ""; position: absolute; left: 8px; right: 8px; height: 2px; background: var(--text); }
.nav-toggle::before { top: 10px; }
.nav-toggle::after { bottom: 10px; }

.hero { position: relative; overflow: hidden; }
.slides { position: relative; height: var(--hero-h); min-height: var(--hero-min-h); }
.slide { position: absolute; inset: 0; display: grid; place-items: center; background: linear-gradient(120deg, #ffffff, #eef6ff 55%, #ffffff); opacity: 0; transform: scale(1.02); transition: opacity .6s ease, transform .6s ease; }
.slide.active { opacity: 1; transform: scale(1); }
.slide .overlay { position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(0,0,0,.35), rgba(0,0,0,.55)); }
.slide-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.slide .content { position: relative; text-align: center; padding: 0 16px; max-width: 860px; color: #fff; text-shadow: 0 2px 8px rgba(0,0,0,.35); }
.slide h1 { font-size: clamp(28px, 6vw, 52px); margin: 0 0 8px; color: #fff; }
.slide p { color: #e2e8f0; font-size: clamp(14px, 2.6vw, 18px); margin: 0 0 20px; }
.btn { display: inline-block; background: var(--primary); color: #fff; padding: 10px 16px; border-radius: 8px; font-weight: 600; }
.btn:hover { background: var(--primary-600); }
.hero-dots { position: absolute; bottom: 16px; left: 0; right: 0; display: flex; justify-content: center; gap: 8px; }
.hero-dots button { width: 8px; height: 8px; border-radius: 50%; border: 0; background: #e2e8f0; }
.hero-dots button.active { background: var(--accent); }

.section { padding: 64px 0; background: var(--bg); }
.section.alt { background: #f8fafc; }
.section-head { text-align: center; margin-bottom: 28px; }
.section-head h2 { font-size: 28px; margin: 0; }
.section-head p { color: var(--muted); margin: 8px auto 0; max-width: 720px; }

.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.about-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.about-card h3 { margin: 0 0 8px; font-size: 18px; }
.about-card p { margin: 0; color: var(--muted); }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0; }
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.spec-table caption { text-align: left; font-weight: 700; padding: 12px 14px; background: #f8fafc; color: var(--text); }
.spec-table th, .spec-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; }
.spec-table th { width: 32%; color: var(--muted); background: #fbfdff; }
.spec-table tr:last-child td { border-bottom: 0; }
.spec-table tr:nth-child(even) td { background: #f9fbff; }

.vm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 20px 0 28px; }
.vm-card { background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%); border: 1px solid var(--border); border-radius: 16px; padding: 20px; display: flex; gap: 14px; align-items: flex-start; box-shadow: 0 8px 24px rgba(0,0,0,.06); transition: box-shadow .2s ease, transform .2s ease; }
.vm-card:hover { box-shadow: 0 12px 32px rgba(0,0,0,.08); transform: translateY(-1px); }
.vm-icon { width: 92px; height: 92px; border-radius: 16px; display: grid; place-items: center; font-size: 40px; color: #ffffff; }
.vm-vision .vm-icon { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.vm-mission .vm-icon { background: linear-gradient(135deg, #1E6FE3, #2F80ED); }
.vm-card h3 { margin: 0 0 8px; font-size: 20px; }
.vm-card p { margin: 0; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; display: grid; }
.card-media { height: 160px; }
.card-body { padding: 16px; }
.card-body h3 { margin: 0 0 8px; font-size: 18px; }
.card-body p { color: var(--muted); margin: 0 0 12px; }
.link { color: var(--accent); font-weight: 600; }
.tro { background: linear-gradient(135deg, rgba(192,57,43,.10), rgba(243,156,18,.08)), #ffffff; }
.sco { background: linear-gradient(135deg, rgba(243,156,18,.10), rgba(192,57,43,.08)), #ffffff; }
.defoam { background: linear-gradient(135deg, rgba(39,174,96,.10), rgba(41,128,185,.08)), #ffffff; }

.apps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.app { border: 1px dashed var(--border); border-radius: 10px; padding: 16px; background: var(--surface); color: var(--muted); }

.history-card { margin-top: 20px; }
.history-card h3 { margin: 0 0 10px; color: var(--primary); }
.history-list { list-style: none; margin: 0; padding: 0 0 0 22px; border-left: 2px dashed var(--border); display: grid; gap: 12px; }
.history-list li { position: relative; color: var(--text); background: #fbfdff; border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px 12px 28px; box-shadow: 0 4px 12px rgba(0,0,0,.04); transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.history-list li::before { content: ""; position: absolute; left: -18px; top: 50%; transform: translateY(-50%); width: 14px; height: 14px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 0 0 4px #ffffff; }
.history-list li:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(0,0,0,.08); background: #f9fbff; }

.form { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
label { display: grid; gap: 8px; }
input, textarea { width: 100%; background: #ffffff; border: 1px solid var(--border); border-radius: 10px; color: var(--text); padding: 10px 12px; font: inherit; }
.form-note { color: var(--muted); font-size: 13px; margin-top: 8px; }

.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.contact-card h3 { margin: 0 0 6px; font-size: 18px; }
.contact-card p, .contact-card a { color: var(--muted); }
.contact-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; align-items: start; }

.footer { position: relative; background: linear-gradient(180deg, #0b1020 0%, #0a0f1a 100%); border-top: 1px solid rgba(255,255,255,.06); }
.footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--primary); opacity: .25; }
.footer .container { padding: 32px 16px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; align-items: start; }
.footer .brand { color: #e2e8f0; }
.footer h4 { color: #e2e8f0; }
.footer p { color: #cbd5e1; }
.footer address { color: #ffffff; }
.footer a { color: #cbd5e1; }
.footer .brand { display: inline-flex; align-items: center; gap: 10px; }
.foot-links { list-style: none; padding: 0; margin: 0; }
.foot-links li { margin: 6px 0; }
.foot-links a { color: #cbd5e1; display: block; padding: 6px 8px; border-radius: 8px; }
.foot-links a:hover { color: #ffffff; background: rgba(255,255,255,.06); }
.socials a { display: inline-grid; place-items: center; width: 28px; height: 28px; border: 1px solid rgba(255,255,255,.12); border-radius: 6px; margin-right: 8px; color: #cbd5e1; }
.socials a:hover { background: rgba(255,255,255,.08); color: #ffffff; }
.copy { color: #94a3b8; margin-top: 20px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.08); font-size: 14px; text-align: center; }

@media (max-width: 960px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .apps { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .brand-logo { width: 240px; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .slides { height: calc(var(--hero-h) - 10vh); }
  .info-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-toggle { display: inline-block; }
  .nav-links { position: absolute; top: 58px; left: 0; right: 0; background: #ffffff; border-bottom: 1px solid var(--border); display: none; flex-direction: column; padding: 12px 16px; }
  .nav-links.show { display: flex; }
  .has-dropdown > a::after { content: "▸"; }
  .has-dropdown.open > a::after { content: "▾"; }
  .dropdown { position: static; display: none; padding: 4px 0 8px; border: 0; background: transparent; }
  .has-dropdown.open .dropdown { display: block; }
  .form-row { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .apps { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .vm-grid { grid-template-columns: 1fr; }
  .vm-icon { width: 72px; height: 72px; font-size: 32px; }
  .brand-logo { width: 190px; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .slides { height: var(--hero-h-mobile); min-height: var(--hero-min-h-mobile); }
  .info-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
}

@keyframes navAccent {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}
@keyframes logoReveal {
  0% { opacity: 0; transform: translateY(-8px) scale(0.98); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes logoBounce {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-6px) scale(1.04); }
  100% { transform: translateY(0) scale(1); }
}
@media (min-width: 641px) {
  .has-dropdown:hover .dropdown { display: block; }
}
.page-hero { position: relative; height: 240px; display: grid; place-items: center; overflow: hidden; }
.page-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page-hero .overlay { position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(0,0,0,.25), rgba(0,0,0,.45)); }
.page-hero .title { position: relative; color: #fff; font-size: clamp(24px, 4vw, 36px); font-weight: 700; letter-spacing: .3px; text-shadow: 0 2px 8px rgba(0,0,0,.35); }

/* Scroll reveal animations */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal-left { transform: translateX(-24px); }
.reveal-right { transform: translateX(24px); }
.reveal.in { opacity: 1; transform: translate(0,0); }

/* Slight parallax on page header image */
.page-hero img { will-change: transform; }