/* ============================================================
   APEX™ — apextes.com · Design System
   Direction A: white base + cobalt blue + diffuse glow
   ============================================================ */
:root {
  --c-primary: #2B4BF2;
  --c-primary-deep: #1E2A78;
  --c-primary-soft: #EEF2FF;
  --c-accent: #E8EDFF;
  --c-text: #10162E;
  --c-muted: #5A6480;
  --c-border: #E3E8F4;
  --c-bg: #FFFFFF;
  --c-glow-1: rgba(43, 75, 242, 0.16);
  --c-glow-2: rgba(120, 88, 220, 0.14);
  --c-glow-3: rgba(64, 160, 255, 0.12);
  --c-ok: #0E9F6E;
  --ff-heading: "Poppins", "Inter", -apple-system, "Segoe UI", "PingFang SC", sans-serif;
  --ff-body: "Inter", -apple-system, "Segoe UI", "PingFang SC", sans-serif;
  --fs-h1: clamp(1.9rem, 4vw, 3rem);
  --fs-h2: clamp(1.4rem, 3vw, 2.1rem);
  --fs-h3: 1.15rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 6px 28px rgba(30, 42, 120, 0.10);
  --shadow-deep: 0 14px 44px rgba(30, 42, 120, 0.18);
  --container: 1180px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--ff-heading); line-height: 1.25; font-weight: 700; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow 0.25s;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(30, 42, 120, 0.08); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 34px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 26px; list-style: none; }
.nav-links a {
  color: var(--c-text); font-weight: 500; font-size: var(--fs-small);
  letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--c-primary); text-decoration: none; }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--c-primary); color: #fff !important;
  padding: 9px 18px; border-radius: 999px; font-weight: 600; font-size: var(--fs-small);
  box-shadow: 0 4px 14px rgba(43, 75, 242, 0.35);
  transition: transform 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle svg { width: 24px; height: 24px; stroke: var(--c-text); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 0.95rem;
  border: none; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none !important;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--c-primary); color: #fff; box-shadow: 0 8px 24px rgba(43, 75, 242, 0.35); }
.btn-primary:hover { background: #2140d8; }
.btn-ghost { background: #fff; color: var(--c-primary); border: 1.5px solid var(--c-primary); }
.btn-wa { background: #1FAF5A; color: #fff; box-shadow: 0 8px 24px rgba(31, 175, 90, 0.3); }
.btn-small { padding: 8px 18px; font-size: var(--fs-small); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #F7F9FF 0%, #FFFFFF 100%);
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(70px); pointer-events: none;
}
.hero::before { width: 560px; height: 560px; right: -120px; top: -160px; background: var(--c-glow-1); }
.hero::after { width: 460px; height: 460px; left: -140px; bottom: -200px; background: var(--c-glow-3); }
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 1fr; align-items: center;
  gap: 48px; padding: 40px 24px 48px;
}
.eyebrow {
  display: inline-block; font-family: var(--ff-heading); font-size: 0.78rem;
  font-weight: 600; letter-spacing: 0.22em; color: var(--c-primary);
  text-transform: uppercase; margin-bottom: 18px;
}
.hero h1 { font-size: var(--fs-h1); color: var(--c-text); margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--c-primary); }
.hero-sub { color: var(--c-muted); font-size: 1.08rem; max-width: 34em; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-media {
  position: relative;
  height: clamp(360px, calc(100vh - 200px), 600px);
  border-radius: var(--radius);
  box-shadow: var(--shadow-deep);
}
.hero-media img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  opacity: 0; transition: opacity 1.2s ease;
}
.hero-media img.active { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .hero-media img { transition: none; }
}
.hero-media .dot {
  position: absolute; top: 18px; left: 18px;
  background: rgba(255, 255, 255, 0.92); color: var(--c-primary-deep);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em;
  padding: 6px 14px; border-radius: 999px; backdrop-filter: blur(6px);
}

/* ---------- Trust Bar ---------- */
.trust-bar { border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); background: #FBFCFF; }
.trust-bar .container {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 34px;
  padding: 18px 24px;
}
.trust-item {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: var(--fs-small); font-weight: 600; color: var(--c-primary-deep);
  letter-spacing: 0.02em;
}
.trust-item svg { width: 16px; height: 16px; stroke: var(--c-primary); }

/* ---------- Sections ---------- */
.section { padding: 84px 0; position: relative; }
.section-tint { background: #F8FAFF; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head h2 { font-size: var(--fs-h2); margin-bottom: 14px; }
.section-head p { color: var(--c-muted); }
.kicker {
  font-family: var(--ff-heading); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-primary);
  margin-bottom: 12px;
}

/* ---------- Product cards ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; transition: transform 0.25s, box-shadow 0.25s;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-deep); }
.product-card .thumb { position: relative; background: var(--c-primary-soft); }
.product-card .thumb img { aspect-ratio: 1; object-fit: cover; width: 100%; }
.product-card .thumb .tag {
  position: absolute; top: 14px; left: 14px; background: rgba(255,255,255,0.94);
  padding: 5px 12px; border-radius: 999px; font-size: 0.72rem; font-weight: 600;
  color: var(--c-primary-deep); letter-spacing: 0.05em;
}
.product-body { padding: 24px 24px 26px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.product-body h3 { font-size: var(--fs-h3); }
.product-body p { color: var(--c-muted); font-size: 0.92rem; flex: 1; }
.product-body .spec-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--c-primary-soft); color: var(--c-primary-deep);
  font-size: 0.74rem; font-weight: 600; padding: 4px 10px; border-radius: 999px;
}
.product-actions { display: flex; gap: 10px; margin-top: 4px; flex-wrap: wrap; }
.price-line { font-family: var(--ff-heading); font-weight: 700; color: var(--c-primary); }

/* ---------- Why grid ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.why-card {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--shadow-card); position: relative; overflow: hidden;
}
.why-card::before {
  content: ""; position: absolute; right: -50px; top: -50px; width: 140px; height: 140px;
  border-radius: 50%; background: var(--c-glow-1); filter: blur(30px);
}
.why-num {
  font-family: var(--ff-heading); font-size: 0.8rem; font-weight: 700;
  color: var(--c-primary); letter-spacing: 0.12em; margin-bottom: 12px; display: block;
}
.why-card h3 { font-size: var(--fs-h3); margin-bottom: 12px; position: relative; }
.why-card p { color: var(--c-muted); font-size: 0.92rem; position: relative; }

/* ---------- Data stats ---------- */
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.stat {
  background: var(--c-primary-deep); color: #fff; border-radius: var(--radius);
  padding: 34px 28px; text-align: center; box-shadow: var(--shadow-deep);
  position: relative; overflow: hidden;
}
.stat::after {
  content: ""; position: absolute; right: -40px; bottom: -40px; width: 130px; height: 130px;
  border-radius: 50%; background: rgba(255,255,255,0.10); filter: blur(10px);
}
.stat .num { font-family: var(--ff-heading); font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.stat .lbl { font-size: 0.86rem; opacity: 0.86; }

/* ---------- CTA band (distributor) ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: 20px;
  background: linear-gradient(120deg, #1E2A78 0%, #2B4BF2 62%, #4E6BFF 100%);
  color: #fff; padding: 64px 56px;
  display: grid; grid-template-columns: 1.4fr 1fr; align-items: center; gap: 40px;
  box-shadow: var(--shadow-deep);
}
.cta-band::before {
  content: ""; position: absolute; right: 120px; top: -80px; width: 340px; height: 340px;
  border-radius: 50%; background: rgba(255,255,255,0.14); filter: blur(60px);
}
.cta-band h2 { color: #fff; font-size: var(--fs-h2); margin-bottom: 14px; position: relative; }
.cta-band p { opacity: 0.9; margin-bottom: 0; position: relative; }
.cta-band .btn-white { background: #fff; color: var(--c-primary-deep); position: relative; }
.cta-band .actions { display: flex; flex-direction: column; gap: 12px; position: relative; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  background: #fff; overflow: hidden;
}
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 18px 22px; cursor: pointer; font-weight: 600; font-size: 0.98rem;
  background: none; border: none; width: 100%; text-align: left;
  font-family: var(--ff-body); color: var(--c-text);
}
.faq-q .arrow { flex: none; width: 18px; height: 18px; stroke: var(--c-primary); transition: transform 0.25s; }
.faq-item.open .arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-a p { padding: 0 22px 20px; color: var(--c-muted); }

/* ---------- Product detail page ---------- */
.page-hero {
  position: relative; overflow: hidden; padding: 60px 0 56px;
  background: linear-gradient(180deg, #F7F9FF 0%, #fff 100%);
  border-bottom: 1px solid var(--c-border);
}
.breadcrumbs { font-size: 0.8rem; color: var(--c-muted); margin-bottom: 20px; }
.breadcrumbs a { color: var(--c-muted); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.gallery { display: grid; gap: 14px; }
.gallery .main-img img {
  border-radius: var(--radius); box-shadow: var(--shadow-card);
  aspect-ratio: 1; object-fit: cover; width: 100%; background: var(--c-primary-soft);
}
.gallery .sub-imgs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.gallery .sub-imgs img {
  border-radius: var(--radius-sm); border: 1px solid var(--c-border);
  aspect-ratio: 1; object-fit: cover; cursor: pointer; width: 100%;
}
.gallery .sub-imgs img:hover { border-color: var(--c-primary); }
.detail-grid h1 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-bottom: 10px; }
.value-prop { color: var(--c-primary-deep); font-weight: 600; margin-bottom: 18px; font-size: 1.05rem; }
.buy-box {
  border: 1px solid var(--c-border); border-radius: var(--radius);
  background: var(--c-primary-soft); padding: 20px 22px; margin: 20px 0;
}
.buy-box .price { font-family: var(--ff-heading); font-size: 1.5rem; font-weight: 800; color: var(--c-primary-deep); }
.buy-box .note { font-size: 0.82rem; color: var(--c-muted); }
.buy-box .actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.selling-points { display: flex; flex-direction: column; gap: 16px; margin: 22px 0; }
.selling-points li {
  list-style: none; display: flex; gap: 12px; align-items: flex-start;
  font-size: 0.95rem;
}
.selling-points .n {
  flex: none; width: 26px; height: 26px; border-radius: 50%;
  background: var(--c-primary); color: #fff; font-size: 0.78rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-top: 3px;
}
.selling-points strong { display: block; margin-bottom: 2px; }
.selling-points span { color: var(--c-muted); font-size: 0.9rem; }

/* ---------- Spec table ---------- */
.spec-section { padding: 60px 0 80px; }
.spec-table {
  width: 100%; border-collapse: collapse; background: #fff;
  border: 1px solid var(--c-border); border-radius: var(--radius-sm); overflow: hidden;
  box-shadow: var(--shadow-card);
}
.spec-table th, .spec-table td { padding: 13px 18px; text-align: left; font-size: 0.92rem; }
.spec-table th {
  background: var(--c-primary-deep); color: #fff; font-family: var(--ff-heading);
  font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase;
}
.spec-table tr:nth-child(even) td { background: #FAFBFF; }
.spec-table td:first-child { font-weight: 600; width: 26%; color: var(--c-primary-deep); }

/* ---------- Media / video ---------- */
.media-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.video-card {
  border: 1px solid var(--c-border); border-radius: var(--radius); overflow: hidden;
  background: #000; box-shadow: var(--shadow-card); position: relative;
}
.video-card video { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }
.video-card .v-label {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(180deg, transparent, rgba(10, 16, 40, 0.82));
  color: #fff; padding: 26px 18px 14px; font-size: 0.85rem; font-weight: 600;
}

/* ---------- Content prose ---------- */
.prose { max-width: 760px; }
.prose h2 { font-size: var(--fs-h2); margin: 40px 0 16px; }
.prose p { margin-bottom: 18px; color: #38436B; }
.prose strong { color: var(--c-text); }
.note-box {
  border-left: 4px solid var(--c-primary); background: var(--c-primary-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px; margin: 22px 0; font-size: 0.92rem; color: #38436B;
}

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 0.84rem; font-weight: 600; color: var(--c-primary-deep); }
.form-field input, .form-field select, .form-field textarea {
  border: 1.5px solid var(--c-border); border-radius: var(--radius-sm);
  padding: 11px 14px; font-family: var(--ff-body); font-size: 0.92rem; color: var(--c-text);
  background: #fff; transition: border-color 0.2s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--c-primary);
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-foot { grid-column: 1 / -1; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.form-foot .privacy { font-size: 0.78rem; color: var(--c-muted); max-width: 34em; }

/* ---------- Contact cards ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-bottom: 40px; }
.contact-card {
  border: 1px solid var(--c-border); border-radius: var(--radius); background: #fff;
  padding: 26px; box-shadow: var(--shadow-card); display: flex; gap: 16px; align-items: flex-start;
}
.contact-card .icon {
  flex: none; width: 44px; height: 44px; border-radius: 12px; background: var(--c-primary-soft);
  display: flex; align-items: center; justify-content: center;
}
.contact-card .icon svg { width: 20px; height: 20px; stroke: var(--c-primary); }
.contact-card h3 { font-size: 1rem; margin-bottom: 4px; }
.contact-card p { color: var(--c-muted); font-size: 0.9rem; margin: 0; }

/* ---------- Cert cards ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cert-card {
  border: 1px solid var(--c-border); border-radius: var(--radius); background: #fff;
  padding: 26px 20px; text-align: center; box-shadow: var(--shadow-card);
}
.cert-card .icon {
  width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--c-primary-soft); display: flex; align-items: center; justify-content: center;
}
.cert-card .icon svg { width: 24px; height: 24px; stroke: var(--c-primary); }
.cert-card h3 { font-size: 0.98rem; margin-bottom: 6px; }
.cert-card p { font-size: 0.82rem; color: var(--c-muted); }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  display: inline-flex; align-items: center; gap: 10px;
  background: #1FAF5A; color: #fff; padding: 12px 20px; border-radius: 999px;
  font-weight: 600; font-size: 0.9rem; box-shadow: 0 10px 30px rgba(31, 175, 90, 0.4);
  text-decoration: none !important; transition: transform 0.2s;
}
.wa-float:hover { transform: translateY(-3px); }
.wa-float svg { width: 20px; height: 20px; fill: #fff; }

/* ---------- Footer ---------- */
.site-footer { background: #0E143C; color: #B9C0E8; margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding: 60px 0 44px; }
.footer-brand img { height: 30px; margin-bottom: 16px; }
.footer-brand p { font-size: 0.86rem; opacity: 0.82; max-width: 30em; }
.site-footer h4 { color: #fff; font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a { color: #B9C0E8; font-size: 0.88rem; }
.site-footer ul a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 20px 0;
  font-size: 0.78rem; display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: space-between;
}
.footer-bottom a { color: #B9C0E8; }

/* ---------- Utility ---------- */
.center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.text-muted { color: var(--c-muted); }
.badge-live {
  display: inline-flex; align-items: center; gap: 6px;
  background: #E8F8F1; color: #0E9F6E; font-size: 0.76rem; font-weight: 700;
  padding: 4px 12px; border-radius: 999px;
}
.badge-live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #0E9F6E; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid, .detail-grid { grid-template-columns: 1fr; }
  .product-grid, .why-grid, .stat-row { grid-template-columns: 1fr 1fr; }
  .cta-band { grid-template-columns: 1fr; padding: 44px 32px; }
  .media-grid, .contact-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .container { padding: 0 30px; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--c-border);
    flex-direction: column; align-items: stretch; gap: 0; padding: 10px 24px 18px;
    box-shadow: 0 12px 30px rgba(30, 42, 120, 0.1);
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 10px 0; border-bottom: 1px solid var(--c-border); }
  .nav-links li:last-child { border-bottom: none; padding-bottom: 0; }
  .nav-toggle { display: block; }
  .nav-cta span { display: none; }
  .product-grid, .why-grid, .stat-row { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .hero-grid { padding: 40px 30px 48px; }
  .hero-media { height: min(58vw, 440px); }
  .cert-grid, .footer-top { grid-template-columns: 1fr; }
  .wa-float { padding: 12px 16px; }
  .wa-float .wa-text { display: none; }
}