:root {
  --pt-navy:   #0D2B5E;
  --pt-navy2:  #162f68;
  --pt-orange: #F07B20;
  --pt-light:  #EBF0F8;
  --pt-white:  #ffffff;
  --pt-text:   #1a1a2e;
}

/* ── Base ── */
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--pt-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
a { color: var(--pt-orange); }
a:hover { color: #d46a10; }

/* ── Navbar ── */
.navbar { background: var(--pt-navy) !important; }
.navbar-brand .logo-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--pt-orange);
  font-weight: 900;
  font-size: 1rem;
  color: var(--pt-white);
  margin-right: 8px;
}
.navbar-brand span { color: var(--pt-white); font-weight: 700; letter-spacing: 1px; }
.nav-link { color: rgba(255,255,255,.85) !important; }
.nav-link:hover { color: var(--pt-orange) !important; }
.btn-orange {
  background: var(--pt-orange);
  color: #fff;
  border: none;
  font-weight: 600;
}
.btn-orange:hover { background: #d46a10; color: #fff; }

/* ── Hero ── */
.hero {
  background: var(--pt-navy);
  color: var(--pt-white);
  padding: 90px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: 0; top: 0;
  width: 35%;
  height: 100%;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 60px,
    rgba(255,255,255,.04) 60px,
    rgba(255,255,255,.04) 61px
  );
  pointer-events: none;
}
.hero .badge-orange {
  background: var(--pt-orange);
  color: #fff;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 4px 12px;
  display: inline-block;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero .kv { font-size: 2rem; font-weight: 900; color: var(--pt-orange); }
.hero .subtitle { font-size: 1rem; color: rgba(255,255,255,.75); margin-bottom: 32px; }
.hero .stat-grid { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 40px; }
.hero .stat {
  background: rgba(255,255,255,.07);
  border-top: 3px solid var(--pt-orange);
  padding: 16px 20px;
  flex: 1 1 120px;
  min-width: 120px;
}
.hero .stat .val { font-size: 1.6rem; font-weight: 900; color: var(--pt-orange); }
.hero .stat .lbl { font-size: .75rem; color: rgba(255,255,255,.65); margin-top: 2px; }

/* ── Section titles ── */
.section-label {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--pt-orange);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 28px; height: 3px;
  background: var(--pt-orange);
}
h2.section-title { font-size: 2rem; font-weight: 800; margin-bottom: 32px; }

/* ── About ── */
.section-about { padding: 72px 0; background: #fff; }

/* ── Voltage cards ── */
.section-voltage { padding: 72px 0; background: var(--pt-light); }
.voltage-card {
  background: var(--pt-navy);
  color: #fff;
  border-radius: 4px;
  overflow: hidden;
}
.voltage-card .vc-header {
  background: var(--pt-navy2);
  border-bottom: 4px solid var(--pt-orange);
  padding: 18px 24px;
  font-size: 1.4rem;
  font-weight: 900;
}
.voltage-card .vc-body { padding: 20px 24px; font-size: .9rem; color: rgba(255,255,255,.8); line-height: 1.6; }

/* ── Nomenclature ── */
.section-nomenclature { padding: 72px 0; background: #fff; }
.nom-card {
  border: none;
  border-left: 4px solid var(--pt-orange);
  border-radius: 0;
  background: var(--pt-light);
  transition: transform .2s;
}
.nom-card:hover { transform: translateY(-3px); }
.nom-card .card-title { font-size: .95rem; font-weight: 700; color: var(--pt-navy); }
.nom-card .card-text { font-size: .82rem; color: #555; }

/* ── Manufacturers ── */
.section-manufacturers { padding: 72px 0; background: var(--pt-navy); color: #fff; }
.section-manufacturers h2.section-title { color: #fff; }
.mfr-group {
  background: rgba(255,255,255,.06);
  border-top: 3px solid var(--pt-orange);
  padding: 20px 24px;
}
.mfr-group .mfr-title { font-weight: 700; font-size: .9rem; color: #fff; margin-bottom: 12px; }
.mfr-group ul { list-style: none; padding: 0; margin: 0; column-count: 2; }
.mfr-group ul li { font-size: .82rem; color: rgba(255,255,255,.75); padding: 2px 0; }
.mfr-group ul li::before { content: '• '; color: var(--pt-orange); }

/* ── Advantages ── */
.section-advantages { padding: 72px 0; background: #fff; }
.adv-card {
  border-top: 3px solid var(--pt-orange);
  background: var(--pt-light);
  border-left: none; border-right: none; border-bottom: none;
  border-radius: 0;
  height: 100%;
}
.adv-card .card-title { font-size: .95rem; font-weight: 700; color: var(--pt-navy); }
.adv-card .card-text { font-size: .82rem; color: #555; }

/* ── Process ── */
.section-process { padding: 72px 0; background: var(--pt-light); }
.process-step { text-align: center; }
.step-num {
  width: 64px; height: 64px;
  background: var(--pt-navy);
  border: 4px solid var(--pt-orange);
  border-radius: 50%;
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.process-step h5 { font-weight: 700; color: var(--pt-navy); }
.process-step p { font-size: .85rem; color: #555; }

/* ── Stats ── */
.section-stats { padding: 72px 0; background: var(--pt-navy); color: #fff; }
.stat-box { text-align: center; }
.stat-box .val { font-size: 2.6rem; font-weight: 900; color: var(--pt-orange); }
.stat-box .lbl { font-size: .82rem; color: rgba(255,255,255,.65); margin-top: 4px; }

/* ── Logistics ── */
.section-logistics { padding: 72px 0; background: #fff; }
.logistics-item { display: flex; gap: 16px; margin-bottom: 20px; }
.logistics-item .li-icon {
  width: 48px; height: 48px; flex-shrink: 0;
  background: var(--pt-navy);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--pt-orange);
  font-size: 1.2rem;
}
.logistics-item h6 { font-weight: 700; color: var(--pt-navy); margin-bottom: 2px; }
.logistics-item p { font-size: .82rem; color: #555; margin: 0; }
.geo-grid {
  background: var(--pt-navy);
  padding: 24px 28px;
  border-radius: 4px;
}
.geo-grid h5 { color: #fff; font-weight: 700; margin-bottom: 4px; }
.geo-grid .geo-sub { color: rgba(255,255,255,.5); font-size: .78rem; font-style: italic; margin-bottom: 16px; }
.geo-grid ul { columns: 2; list-style: none; padding: 0; margin: 0; }
.geo-grid ul li { color: rgba(255,255,255,.8); font-size: .85rem; padding: 4px 0; }
.geo-grid ul li::before { content: '▪ '; color: var(--pt-orange); }

/* ── Quality ── */
.section-quality { padding: 72px 0; background: var(--pt-light); }
.quality-item {
  background: #fff;
  border-left: 4px solid var(--pt-orange);
  padding: 16px 20px;
  margin-bottom: 12px;
  display: flex; align-items: flex-start; gap: 12px;
}
.quality-item .qi-check {
  width: 28px; height: 28px; flex-shrink: 0;
  background: var(--pt-navy);
  border-radius: 50%;
  color: var(--pt-orange);
  font-size: .75rem;
  display: flex; align-items: center; justify-content: center;
}
.quality-item h6 { font-weight: 700; font-size: .92rem; color: var(--pt-navy); margin-bottom: 2px; }
.quality-item p { font-size: .8rem; color: #666; margin: 0; }
.control-step { background: var(--pt-navy); color: #fff; padding: 20px 24px; border-radius: 4px; margin-bottom: 12px; display: flex; gap: 16px; }
.cs-num {
  width: 36px; height: 36px; flex-shrink: 0;
  background: var(--pt-orange);
  color: #fff; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px; font-size: .9rem;
}
.control-step h6 { color: #fff; font-weight: 700; margin-bottom: 2px; font-size: .92rem; }
.control-step p { color: rgba(255,255,255,.65); font-size: .8rem; margin: 0; }

/* ── Contacts ── */
.section-contacts { padding: 80px 0; background: var(--pt-navy); color: #fff; }
.section-contacts h2.section-title { color: #fff; }
.contact-item { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.ci-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--pt-orange);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1rem;
}
.contact-item .ci-label { font-size: .75rem; color: rgba(255,255,255,.5); }
.contact-item .ci-val { font-size: .95rem; color: #fff; font-weight: 600; }
.cta-box {
  background: rgba(255,255,255,.07);
  border-top: 4px solid var(--pt-orange);
  padding: 28px 32px;
}
.cta-box h4 { color: #fff; font-weight: 800; margin-bottom: 16px; }
.cta-box ul { list-style: none; padding: 0; margin: 0 0 24px; }
.cta-box ul li { color: rgba(255,255,255,.8); font-size: .88rem; padding: 5px 0; }
.cta-box ul li::before { content: '▪ '; color: var(--pt-orange); }

/* ── Footer ── */
footer { background: #071a3e; color: rgba(255,255,255,.45); padding: 20px 0; font-size: .8rem; }

/* ── Responsive tweaks ── */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.9rem; }
  .hero .kv { font-size: 1.5rem; }
  .hero .stat-grid { gap: 12px; }
  h2.section-title { font-size: 1.5rem; }
}