@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
  --navy:       #080E1D;
  --navy-2:     #0F1929;
  --navy-3:     #1A2540;
  --blue:       #1B5FFF;
  --blue-hover: #0D4FE8;
  --blue-light: rgba(27, 95, 255, 0.10);
  --cyan:       #00D9F5;
  --white:      #FFFFFF;
  --light:      #F5F8FF;
  --border:     #E4EAF4;
  --text:       #0D1526;
  --muted:      #5B6B8A;
  --success:    #00C278;
  --warning:    #FFB020;

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 20px;
  --shadow:    0 2px 16px rgba(8,14,29,0.07);
  --shadow-md: 0 4px 32px rgba(8,14,29,0.11);
  --shadow-lg: 0 8px 64px rgba(8,14,29,0.15);
  --t: 0.2s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--white); -webkit-font-smoothing: antialiased; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ── Typography ── */
h1,h2,h3,h4,h5 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.75rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.0625rem; }

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0,217,245,0.1);
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid rgba(0,217,245,0.2);
}

/* ── Layout ── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.section    { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.bg-light   { background: var(--light); }
.bg-navy    { background: var(--navy); }

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(8,14,29,0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}
.nav-logo { font-size: 1.2rem; font-weight: 800; color: var(--white); letter-spacing: -0.03em; }
.nav-logo span { color: var(--cyan); }
.nav-links { display: flex; gap: 4px; list-style: none; }
.nav-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--t);
}
.nav-links a:hover, .nav-links a.active { color: var(--white); background: rgba(255,255,255,0.08); }
.nav-cta {
  background: var(--blue) !important;
  color: var(--white) !important;
  font-weight: 600 !important;
  border-radius: 8px !important;
  transition: all var(--t) !important;
}
.nav-cta:hover { background: var(--blue-hover) !important; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(27,95,255,0.4) !important; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: all var(--t);
  cursor: pointer;
  border: none;
  font-family: var(--font);
  white-space: nowrap;
}
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--blue-hover); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(27,95,255,0.4); }
.btn-ghost { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.22); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.6); background: rgba(255,255,255,0.07); }
.btn-outline { background: transparent; color: var(--text); border: 1.5px solid var(--border); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-sm { padding: 8px 16px; font-size: 0.8125rem; }

/* ── HERO ── */
.hero {
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: 120px 0 110px;
}
.hero-glow-1 {
  position: absolute;
  top: -180px; right: -180px;
  width: 640px; height: 640px;
  background: radial-gradient(circle, rgba(27,95,255,0.18) 0%, transparent 68%);
  pointer-events: none;
}
.hero-glow-2 {
  position: absolute;
  bottom: -120px; left: 25%;
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(0,217,245,0.08) 0%, transparent 68%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.hero-content { max-width: 700px; position: relative; z-index: 1; }
.hero h1 { color: var(--white); margin: 18px 0 24px; }
.hero h1 em { font-style: normal; color: var(--cyan); }
.hero-sub {
  color: rgba(255,255,255,0.6);
  font-size: 1.1rem;
  max-width: 520px;
  margin-bottom: 44px;
  line-height: 1.75;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Stats Bar ── */
.stats-bar {
  background: var(--navy-2);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}
.stat-item {
  padding: 36px 24px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-num b { color: var(--cyan); font-weight: inherit; }
.stat-label { color: rgba(255,255,255,0.45); font-size: 0.82rem; margin-top: 6px; }

/* ── Section Header ── */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { margin: 14px 0 18px; }
.section-header p { color: var(--muted); max-width: 520px; margin: 0 auto; line-height: 1.75; }

/* ── Product Card ── */
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

.product-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--t);
  display: flex;
  flex-direction: column;
}
.product-card:hover { border-color: var(--blue); box-shadow: var(--shadow-md); transform: translateY(-5px); }

.product-img {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #EEF3FF 0%, #DCE8FF 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.monitor-art {
  width: 58%;
  aspect-ratio: 16/10;
  background: linear-gradient(160deg, #C2D4FF 0%, #8AAEFF 100%);
  border-radius: 5px 5px 3px 3px;
  border: 3px solid rgba(255,255,255,0.85);
  box-shadow: 0 6px 24px rgba(27,95,255,0.22);
  position: relative;
}
.monitor-stand {
  position: absolute;
  bottom: 10px;
  width: 18%;
  height: 18px;
  background: #B4C4E0;
  border-radius: 4px;
}
.monitor-base {
  position: absolute;
  bottom: 7px;
  width: 26%;
  height: 5px;
  background: #A8B8D4;
  border-radius: 4px;
}

.grade-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 9px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.grade-a { background: #D1FAE5; color: #065F46; }
.grade-b { background: #FEF3C7; color: #92400E; }
.grade-c { background: #FEE2E2; color: #991B1B; }

.product-body { padding: 18px; flex: 1; display: flex; flex-direction: column; }
.product-name { font-weight: 600; font-size: 0.9rem; line-height: 1.4; margin-bottom: 5px; }
.product-specs { font-size: 0.78rem; color: var(--muted); margin-bottom: 18px; line-height: 1.5; }
.product-footer { display: flex; justify-content: space-between; align-items: flex-end; margin-top: auto; }
.price-wrap .price { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; }
.price-wrap .per { font-size: 0.72rem; color: var(--muted); }
.stock-tag { font-size: 0.75rem; color: var(--success); font-weight: 500; display: flex; align-items: center; gap: 4px; }
.stock-tag::before { content: '●'; font-size: 0.5rem; }
.btn-quote {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--blue-light);
  color: var(--blue);
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--t);
  font-size: 1.2rem; line-height: 1;
  font-family: var(--font);
}
.btn-quote:hover { background: var(--blue); color: var(--white); }

/* ── Feature Cards ── */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  padding: 36px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  transition: var(--t);
}
.feature-card:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--blue-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 22px;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { color: var(--muted); font-size: 0.875rem; line-height: 1.75; }

/* ── Process Steps ── */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; position: relative; }
.process-steps::before {
  content: '';
  position: absolute;
  top: 23px; left: 12%; right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
}
.step { text-align: center; position: relative; }
.step-num {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--blue);
  color: var(--white);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  border: 4px solid var(--white);
  box-shadow: 0 0 0 2px var(--blue);
  font-size: 0.9375rem;
}
.step h4 { font-size: 0.9375rem; margin-bottom: 8px; }
.step p { font-size: 0.825rem; color: var(--muted); line-height: 1.65; }

/* ── CTA Banner ── */
.cta-banner {
  background: linear-gradient(135deg, #0D4FE8 0%, #1B5FFF 50%, #0066FF 100%);
  padding: 88px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.cta-banner > .container { position: relative; z-index: 1; }
.cta-banner h2 { color: var(--white); margin-bottom: 14px; }
.cta-banner p { color: rgba(255,255,255,0.78); margin-bottom: 36px; font-size: 1.05rem; }

/* ── Filter Bar ── */
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 44px; }
.filter-tab {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--t);
  border: 1.5px solid var(--border);
  background: var(--white);
  color: var(--muted);
  font-family: var(--font);
}
.filter-tab:hover { border-color: var(--blue); color: var(--blue); }
.filter-tab.active { background: var(--blue); border-color: var(--blue); color: var(--white); }

/* ── Page Header ── */
.page-header {
  background: var(--navy);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.page-header::after {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(27,95,255,0.14) 0%, transparent 70%);
  pointer-events: none;
}
.page-header .container { position: relative; z-index: 1; }
.breadcrumb { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; font-size: 0.8125rem; }
.breadcrumb a { color: rgba(255,255,255,0.45); transition: var(--t); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: rgba(255,255,255,0.7); }
.page-header h1 { color: var(--white); font-size: clamp(2rem, 4vw, 2.875rem); }
.page-header p { color: rgba(255,255,255,0.55); margin-top: 12px; max-width: 540px; }

/* ── About ── */
.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-visual {
  aspect-ratio: 5/4;
  background: linear-gradient(135deg, #EEF3FF 0%, #DCE8FF 100%);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.about-visual::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(27,95,255,0.12) 0%, transparent 70%);
}
.about-blob {
  width: 65%;
  aspect-ratio: 1;
  border-radius: 42% 58% 65% 35% / 45% 35% 65% 55%;
  background: linear-gradient(135deg, rgba(27,95,255,0.15), rgba(0,217,245,0.12));
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
}
.about-text .eyebrow { margin-bottom: 16px; }
.about-text h2 { margin-bottom: 20px; }
.about-text p { color: var(--muted); line-height: 1.8; margin-bottom: 16px; font-size: 0.9375rem; }

.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.about-stat { text-align: center; padding: 28px 20px; background: var(--navy); border-radius: var(--radius); }
.about-stat .num { font-size: 2.25rem; font-weight: 800; color: var(--white); letter-spacing: -0.04em; }
.about-stat .num b { color: var(--cyan); }
.about-stat .lbl { font-size: 0.8rem; color: rgba(255,255,255,0.45); margin-top: 4px; }

.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.value-card {
  padding: 32px 24px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--t);
}
.value-card:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.value-icon { font-size: 2rem; margin-bottom: 14px; }
.value-card h3 { font-size: 1.0625rem; margin-bottom: 8px; }
.value-card p { font-size: 0.85rem; color: var(--muted); line-height: 1.7; }

/* ── Services ── */
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.service-card {
  padding: 44px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--t);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 0;
  background: var(--blue);
  transition: height 0.3s ease;
  border-radius: 0 0 4px 0;
}
.service-card:hover::before { height: 100%; }
.service-card:hover { border-color: var(--blue); box-shadow: var(--shadow-md); }
.service-num { font-size: 3.5rem; font-weight: 900; color: var(--blue-light); letter-spacing: -0.05em; line-height: 1; margin-bottom: 18px; background: linear-gradient(135deg, rgba(27,95,255,0.18), rgba(0,217,245,0.12)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.service-card h3 { font-size: 1.25rem; margin-bottom: 12px; }
.service-card p { color: var(--muted); font-size: 0.9rem; line-height: 1.75; }
.service-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 20px; }
.tag { display: inline-flex; align-items: center; padding: 4px 10px; background: var(--blue-light); color: var(--blue); border-radius: 100px; font-size: 0.72rem; font-weight: 600; }

/* ── Grade Table ── */
.table-wrap { border: 1.5px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.grade-table { width: 100%; border-collapse: collapse; }
.grade-table thead th { background: var(--navy); color: var(--white); padding: 16px 22px; text-align: left; font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.03em; }
.grade-table tbody td { padding: 18px 22px; border-bottom: 1px solid var(--border); font-size: 0.9rem; vertical-align: top; }
.grade-table tbody tr:last-child td { border-bottom: none; }
.grade-table tbody tr:hover td { background: var(--light); }
.grade-label { font-weight: 700; font-size: 1rem; }

/* ── Contact ── */
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 80px; align-items: start; }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label { font-size: 0.8125rem; font-weight: 600; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
  padding: 11px 15px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font);
  transition: var(--t);
  background: var(--white);
  color: var(--text);
  outline: none;
  width: 100%;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(27,95,255,0.1);
}
.form-group textarea { resize: vertical; min-height: 130px; }

.contact-info { display: flex; flex-direction: column; gap: 28px; }
.info-block { display: flex; gap: 16px; align-items: flex-start; }
.info-icon { width: 44px; height: 44px; min-width: 44px; border-radius: 12px; background: var(--blue-light); display: flex; align-items: center; justify-content: center; font-size: 1.25rem; }
.info-block h4 { font-size: 0.9rem; margin-bottom: 4px; }
.info-block p { color: var(--muted); font-size: 0.875rem; line-height: 1.65; }

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9375rem;
  user-select: none;
  transition: color var(--t);
}
.faq-q:hover { color: var(--blue); }
.faq-arrow { font-size: 1.25rem; color: var(--muted); transition: transform 0.25s ease; line-height: 1; }
.faq-item.open .faq-arrow { transform: rotate(45deg); color: var(--blue); }
.faq-a { color: var(--muted); font-size: 0.9rem; line-height: 1.75; max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; }
.faq-item.open .faq-a { max-height: 300px; padding-bottom: 22px; }

/* ── Footer ── */
footer { background: var(--navy); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 56px; }
.footer-brand .logo { font-size: 1.2rem; font-weight: 800; color: var(--white); letter-spacing: -0.03em; margin-bottom: 14px; }
.footer-brand .logo span { color: var(--cyan); }
.footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.42); line-height: 1.75; max-width: 230px; }
.footer-col h4 { color: var(--white); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: 0.875rem; color: rgba(255,255,255,0.45); transition: var(--t); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.07); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 0.8125rem; color: rgba(255,255,255,0.3); }

/* ── Responsive ── */
@media (max-width: 1100px) {
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 900px) {
  .about-split { grid-template-columns: 1fr; gap: 48px; }
  .services-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
}
@media (max-width: 768px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .values-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  h1 { font-size: 2rem; }
}