/* ═══════════════════════════════════════════════════
   UM CABLE TIES — Quickbridge Global Subdomain
   Color palette: QBG sage teal (#7fa999) accent
   ═══════════════════════════════════════════════════ */

:root {
  --primary:       #0D2B6E;
  --primary-light: #1A4BA0;
  --accent:        #7fa999;   /* QBG logo color */
  --accent-dark:   #5d8a7e;
  --accent-glow:   rgba(127, 169, 153, 0.25);
  --bg-dark:       #0A1628;
  --bg-mid:        #0f1f3a;
  --text:          #1a1a2e;
  --text-muted:    #6b7280;
  --border:        rgba(127, 169, 153, 0.15);
  --radius:        12px;
  --radius-lg:     20px;
  --shadow:        0 4px 24px rgba(0,0,0,0.12);
  --shadow-lg:     0 8px 48px rgba(0,0,0,0.18);
  --transition:    all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset ────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--text); background: #fff; line-height: 1.6; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Scroll Reveal ────────────────────────── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ── Utility ─────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.accent-text { color: var(--accent); }
.section-badge {
  display: inline-block; background: var(--accent-glow); color: var(--accent);
  border: 1px solid var(--border); border-radius: 100px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 6px 16px; margin-bottom: 16px;
}
.section-header { text-align: center; margin-bottom: 56px; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; color: var(--primary); line-height: 1.2; margin-bottom: 16px; }
.section-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

/* ── Buttons ──────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius); font-size: 0.95rem;
  font-weight: 600; font-family: 'Inter', sans-serif;
  cursor: pointer; border: none; transition: var(--transition);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(127,169,153,0.4); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.45); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--accent); }
.btn-whatsapp { background: #25D366; color: #fff; width: 100%; justify-content: center; margin-top: 8px; }
.btn-whatsapp:hover { background: #1ebe5d; transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }

/* ── NAVBAR ──────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 18px 0; transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(10,22,40,0.96); backdrop-filter: blur(12px);
  padding: 12px 0; box-shadow: 0 2px 24px rgba(0,0,0,0.3);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
  width: 42px; height: 42px; background: var(--accent);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.85rem; color: #fff; letter-spacing: 0.05em; flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-main { font-weight: 700; font-size: 1rem; color: #fff; }
.logo-sub { font-size: 0.7rem; color: rgba(127,169,153,0.8); font-weight: 400; }
.nav-links { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav-link {
  padding: 8px 14px; border-radius: 8px; font-size: 0.9rem; font-weight: 500;
  color: rgba(255,255,255,0.75); transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: #fff; background: rgba(127,169,153,0.15); }
.nav-link-back { color: rgba(127,169,153,0.7); font-size: 0.82rem; }
.nav-link-back:hover { color: var(--accent); }
.nav-cta {
  background: var(--accent); color: #fff; padding: 10px 22px;
  border-radius: var(--radius); font-size: 0.875rem; font-weight: 600;
  white-space: nowrap; transition: var(--transition); flex-shrink: 0;
}
.nav-cta:hover { background: var(--accent-dark); transform: translateY(-1px); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: rgba(255,255,255,0.8); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ─────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; background: var(--bg-dark);
  padding: 140px 24px 100px;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(127,169,153,0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(127,169,153,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.45;
}
.hero-orb-1 { width: 520px; height: 520px; background: rgba(127,169,153,0.2); top: -100px; right: -120px; }
.hero-orb-2 { width: 380px; height: 380px; background: rgba(13,43,110,0.6); bottom: -80px; left: -80px; }
.hero-orb-3 { width: 280px; height: 280px; background: rgba(127,169,153,0.12); top: 40%; left: 30%; }
.hero-content { position: relative; z-index: 2; text-align: center; max-width: 760px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(127,169,153,0.12); border: 1px solid rgba(127,169,153,0.3);
  color: var(--accent); border-radius: 100px;
  font-size: 0.82rem; font-weight: 600; letter-spacing: 0.06em;
  padding: 8px 20px; margin-bottom: 24px; text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 800; color: #fff;
  line-height: 1.08; margin-bottom: 20px; letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: 1.1rem; color: rgba(255,255,255,0.65); max-width: 580px;
  margin: 0 auto 36px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.scroll-indicator {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.4); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; font-weight: 500;
}
.scroll-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ── STATS BAR ───────────────────────────── */
.stats-bar { background: var(--primary); padding: 36px 24px; }
.stats-container {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 0;
}
.stat-item {
  text-align: center; padding: 0 48px;
  display: flex; flex-direction: column; gap: 4px;
}
.stat-number { font-size: 2.2rem; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-plus { font-size: 1.2rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; }
.stat-divider { width: 1px; height: 48px; background: rgba(127,169,153,0.25); }

/* ── PRODUCT GALLERY ─────────────────────── */
.photo-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  margin-bottom: 64px;
}
.photo-card { border-radius: var(--radius-lg); overflow: hidden; position: relative; aspect-ratio: 4/3; }
.photo-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.photo-card:hover img { transform: scale(1.04); }
.photo-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(10,22,40,0.85), transparent);
  padding: 32px 24px 20px;
  display: flex; align-items: flex-end;
}
.photo-overlay span { color: #fff; font-weight: 600; font-size: 0.95rem; }

/* ── FEATURES ────────────────────────────── */
.features-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.feature-card {
  background: #f8faf9; border: 1px solid rgba(127,169,153,0.2);
  border-radius: var(--radius); padding: 32px 24px; text-align: center;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--accent-glow); display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 1.4rem; color: var(--accent);
}
.feature-card h3 { font-size: 1rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.feature-card p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; }

/* ── SPECIFICATIONS ──────────────────────── */
.specs { background: var(--bg-dark); }
.specs .section-title, .specs .section-subtitle { color: #fff; }
.specs .section-subtitle { color: rgba(255,255,255,0.55); }
.specs-table-wrap {
  overflow-x: auto; border-radius: var(--radius-lg);
  box-shadow: 0 4px 40px rgba(0,0,0,0.4);
}
.specs-table {
  width: 100%; border-collapse: collapse; background: var(--bg-mid);
  border-radius: var(--radius-lg); overflow: hidden;
}
.specs-table thead tr { background: var(--primary); }
.specs-table th {
  padding: 16px 20px; text-align: left; font-size: 0.78rem;
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.75);
}
.specs-table td {
  padding: 15px 20px; font-size: 0.9rem; color: rgba(255,255,255,0.85);
  border-bottom: 1px solid rgba(127,169,153,0.08);
}
.specs-table tbody tr:last-child td { border-bottom: none; }
.specs-table tbody tr:hover { background: rgba(127,169,153,0.06); }
.specs-table tbody tr:hover .model-code { color: var(--accent); }
.model-code { font-weight: 700; font-family: 'Courier New', monospace; color: var(--accent); font-size: 0.95rem; }
.color-dot {
  display: inline-block; width: 16px; height: 16px; border-radius: 50%;
  margin-right: 4px; vertical-align: middle;
}
.color-dot.white { background: #f5f5f0; border: 1.5px solid rgba(255,255,255,0.4); }
.color-dot.black { background: #1a1a1a; border: 1.5px solid rgba(255,255,255,0.2); }
.color-dot.red { background: #dc2626; border: 1.5px solid rgba(255,255,255,0.2); }
.specs-note {
  margin-top: 24px; padding: 16px 24px;
  background: rgba(127,169,153,0.08); border: 1px solid var(--border);
  border-radius: var(--radius); color: rgba(255,255,255,0.6); font-size: 0.875rem;
  display: flex; align-items: flex-start; gap: 10px;
}
.specs-note i { color: var(--accent); margin-top: 2px; flex-shrink: 0; }

/* ── WHY US ───────────────────────────────── */
.why-us { background: #f0f5f3; }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-card {
  background: #fff; border-radius: var(--radius); padding: 36px 28px;
  text-align: center; border: 1px solid rgba(127,169,153,0.15);
  transition: var(--transition);
}
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.why-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--accent-glow); display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; font-size: 1.6rem; color: var(--accent);
}
.why-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.why-card p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.65; }

/* ── CONTACT ──────────────────────────────── */
.contact { background: var(--bg-dark); }
.contact .section-title { color: #fff; }
.contact .section-subtitle { color: rgba(255,255,255,0.55); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 56px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; align-items: flex-start; gap: 16px; }
.contact-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(127,169,153,0.12); display: flex; align-items: center; justify-content: center;
  color: var(--accent); font-size: 1.1rem; flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 0.9rem; color: rgba(255,255,255,0.9); margin-bottom: 2px; }
.contact-item span { font-size: 0.85rem; color: rgba(255,255,255,0.5); }
.contact-social { display: flex; gap: 12px; margin-top: 8px; }
.contact-social a {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(127,169,153,0.1); border: 1px solid rgba(127,169,153,0.2);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6); font-size: 0.95rem; transition: var(--transition);
}
.contact-social a:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.contact-form {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(127,169,153,0.15);
  border-radius: var(--radius-lg); padding: 40px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.form-group label { font-size: 0.82rem; font-weight: 600; color: rgba(255,255,255,0.65); letter-spacing: 0.04em; }
.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.06); border: 1px solid rgba(127,169,153,0.2);
  border-radius: 10px; padding: 12px 16px; color: rgba(255,255,255,0.9);
  font-family: 'Inter', sans-serif; font-size: 0.9rem; transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--accent); background: rgba(127,169,153,0.08);
  box-shadow: 0 0 0 3px rgba(127,169,153,0.12);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.25); }
.form-group select option { background: var(--bg-dark); color: rgba(255,255,255,0.85); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-success {
  display: none; margin-top: 16px; padding: 16px;
  background: rgba(127,169,153,0.12); border: 1px solid rgba(127,169,153,0.3);
  border-radius: var(--radius); color: var(--accent);
  align-items: center; gap: 10px; font-size: 0.9rem; font-weight: 600;
}
.form-success.show { display: flex; }

/* ── FOOTER ───────────────────────────────── */
.footer { background: #05101f; padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1.5fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-tagline { font-size: 0.875rem; color: rgba(255,255,255,0.4); line-height: 1.65; margin-bottom: 20px; }
.footer-main-link { color: var(--accent); font-size: 0.875rem; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.footer-main-link:hover { color: #fff; }
.footer-links h4 { font-size: 0.82rem; font-weight: 700; color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.875rem; color: rgba(255,255,255,0.4); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(127,169,153,0.1); padding-top: 28px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; color: rgba(255,255,255,0.25);
}

/* ── RESPONSIVE ───────────────────────────── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: var(--bg-dark); flex-direction: column; align-items: flex-start;
    padding: 100px 32px 48px; gap: 4px; transition: var(--transition);
    box-shadow: -8px 0 40px rgba(0,0,0,0.4);
  }
  .nav-links.open { right: 0; }
  .nav-link { width: 100%; padding: 12px 16px; }
  .hamburger { display: flex; }
  .nav-cta { display: none; }

  .hero-title { font-size: 2.4rem; }
  .photo-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .specs-table th, .specs-table td { padding: 12px 14px; font-size: 0.82rem; }
  .stat-item { padding: 0 24px; }
}

@media (max-width: 480px) {
  .section { padding: 64px 0; }
  .features-grid, .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .stats-container { gap: 16px; flex-direction: column; }
  .stat-divider { width: 80px; height: 1px; }
}