/* =====================================================================
   ProEDM Parts - Global Stylesheet
   ---------------------------------------------------------------------
   To rebrand: change the CSS custom properties in :root below.
   The whole site updates from these variables.
   ===================================================================== */

:root {
  /* ---- Colors ---- */
  --c-navy:        #0b2545;   /* Primary - dark blue, professional rail feel */
  --c-navy-dark:   #061a36;
  --c-navy-light:  #13315c;
  --c-accent:      #d4a017;   /* Accent - gold, ties to railway yellow */
  --c-accent-dark: #b8860b;
  --c-text:        #222;
  --c-text-muted:  #5a6b85;
  --c-bg:          #ffffff;
  --c-bg-alt:      #f5f7fa;   /* Light section background */
  --c-border:      #e1e5ec;

  /* ---- Layout ---- */
  --container:     1200px;
  --radius:        10px;
  --gap:           1.5rem;

  /* ---- Type ---- */
  --font-body:     -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                   "Helvetica Neue", Arial, sans-serif;
  --font-heading:  var(--font-body);

  /* ---- Effects ---- */
  --shadow-sm:     0 1px 3px rgba(11,37,69,0.06);
  --shadow-md:     0 4px 14px rgba(11,37,69,0.10);
  --shadow-lg:     0 12px 32px rgba(11,37,69,0.14);
}

/* ============================== Reset ================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--c-navy); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--c-accent-dark); }

/* ============================== Header =============================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-navy);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
}
.site-header .wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
}
.brand img { height: 44px; width: auto; }
.brand:hover { color: #fff; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem;
}
.site-nav a {
  display: block;
  padding: 0.55rem 1rem;
  color: #fff;
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background 0.2s, color 0.2s;
}
.site-nav a:hover { background: var(--c-navy-light); color: #fff; }
.site-nav a.active {
  background: var(--c-accent);
  color: var(--c-navy-dark);
  font-weight: 600;
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    width: 100%;
  }
  .site-nav.open { display: block; }
  .site-nav ul {
    flex-direction: column;
    padding-top: 0.5rem;
    gap: 0.15rem;
  }
  .site-header .wrap { flex-wrap: wrap; }
  .site-nav a { padding: 0.7rem 0.9rem; }
}

/* =============================== Hero =============================== */
.hero {
  position: relative;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(212,160,23,0.10), transparent 50%),
    radial-gradient(ellipse at 85% 80%, rgba(19,49,92,0.55), transparent 55%),
    linear-gradient(135deg, var(--c-navy) 0%, var(--c-navy-light) 60%, var(--c-navy) 100%);
  color: #fff;
  padding: 5.5rem 1.5rem 4.5rem;
  text-align: center;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--c-accent), transparent);
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  margin: 0 0 1.1rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.hero p.tagline {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  max-width: 760px;
  margin: 0 auto 2.2rem;
  color: rgba(255,255,255,0.92);
}
.hero .eyebrow {
  display: inline-block;
  background: rgba(212,160,23,0.15);
  color: var(--c-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(212,160,23,0.35);
  margin-bottom: 1.5rem;
}
.hero .btn-row { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* ============================== Buttons ============================== */
.btn {
  display: inline-block;
  padding: 0.9rem 1.8rem;
  background: var(--c-accent);
  color: var(--c-navy-dark);
  font-weight: 700;
  border-radius: var(--radius);
  border: 0;
  cursor: pointer;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(212,160,23,0.25);
}
.btn:hover { background: var(--c-accent-dark); color: var(--c-navy-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(212,160,23,0.35); }
.btn:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
  box-shadow: none;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: #fff; }

.btn-sm { padding: 0.55rem 1.1rem; font-size: 0.9rem; }

/* ============================ Sections =============================== */
section {
  padding: 4.5rem 1.5rem;
}
section.alt { background: var(--c-bg-alt); }
section.tight { padding: 3rem 1.5rem; }

.container {
  max-width: var(--container);
  margin: 0 auto;
}
section h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  margin: 0 0 0.5rem;
  color: var(--c-navy);
  font-weight: 800;
  letter-spacing: -0.3px;
}
section h2 .accent { color: var(--c-accent-dark); }
section h3 { font-weight: 700; }
section .lead {
  color: var(--c-text-muted);
  font-size: 1.08rem;
  margin-bottom: 2.5rem;
  max-width: 780px;
}

/* Section eyebrow labels */
.eyebrow-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--c-accent-dark);
  margin-bottom: 0.6rem;
}

/* ----------------------------- Grid ---------------------------------- */
.grid {
  display: grid;
  gap: var(--gap);
}
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(212,160,23,0.4);
}
.card h3 {
  margin: 0 0 0.5rem;
  color: var(--c-navy);
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.card p { margin: 0; color: var(--c-text-muted); }

.card .card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-navy), var(--c-navy-light));
  color: var(--c-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 0.9rem;
  font-weight: 800;
  letter-spacing: -1px;
}

.card-link {
  color: var(--c-accent-dark);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.8rem;
}
.card-link::after { content: "→"; transition: transform 0.2s; }
.card-link:hover::after { transform: translateX(3px); }

/* --------------------------- Brand list ------------------------------ */
.brand-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}
.brand-list li {
  background: #fff;
  border: 1px solid var(--c-border);
  padding: 0.55rem 1.05rem;
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--c-navy);
  font-weight: 500;
  transition: all 0.2s;
}
.brand-list li:hover {
  border-color: var(--c-accent);
  color: var(--c-accent-dark);
  transform: translateY(-1px);
}

/* -------------------------- Steps list ------------------------------- */
.steps {
  counter-reset: step;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.2rem;
}
.steps li {
  counter-increment: step;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem 1.3rem 4.2rem;
  position: relative;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  top: 1.1rem;
  left: 1.1rem;
  width: 2.4rem;
  height: 2.4rem;
  background: var(--c-navy);
  color: var(--c-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.05rem;
}
.steps h4 { margin: 0 0 0.4rem; color: var(--c-navy); font-size: 1.1rem; }
.steps p { margin: 0; color: var(--c-text-muted); }

/* ============================== Forms ================================ */
.form-card {
  max-width: 680px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}
.form-row { margin-bottom: 1.1rem; }
.form-row label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.45rem;
  color: var(--c-navy);
  font-size: 0.95rem;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
  color: var(--c-text);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(212,160,23,0.15);
}
.form-row textarea { min-height: 130px; resize: vertical; }
.form-note {
  background: #fff8e1;
  border-left: 3px solid var(--c-accent);
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
  border-radius: 4px;
  color: #5a4a00;
}
.form-note code {
  background: rgba(11,37,69,0.08);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.85em;
}

/* ============================== Footer =============================== */
.site-footer {
  background: var(--c-navy-dark);
  color: rgba(255,255,255,0.8);
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
  font-size: 0.92rem;
}
.site-footer .footer-grid {
  max-width: var(--container);
  margin: 0 auto 1.5rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  text-align: left;
}
.site-footer h4 {
  color: #fff;
  font-size: 0.95rem;
  margin: 0 0 0.8rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.4rem; }
.site-footer a { color: rgba(255,255,255,0.85); }
.site-footer a:hover { color: var(--c-accent); }
.site-footer .footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
}
.site-footer .small { font-size: 0.8rem; color: rgba(255,255,255,0.5); margin-top: 0.4rem; }

@media (max-width: 720px) {
  .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
  .site-footer .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .site-footer .footer-grid { grid-template-columns: 1fr; }
}

/* ============================ Utilities ============================== */
.text-center { text-align: center; }
.muted { color: var(--c-text-muted); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

/* =========================== Page hero =============================== */
.page-hero {
  background:
    radial-gradient(ellipse at 80% 30%, rgba(212,160,23,0.10), transparent 50%),
    linear-gradient(135deg, var(--c-navy) 0%, var(--c-navy-light) 100%);
  color: #fff;
  padding: 3.5rem 1.5rem 3rem;
  text-align: center;
  position: relative;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--c-accent), transparent);
}
.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  margin: 0 0 0.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.page-hero p {
  margin: 0 auto;
  color: rgba(255,255,255,0.9);
  max-width: 720px;
  font-size: 1.08rem;
}

/* ====================== Contact info block =========================== */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2.2rem;
}
.contact-info .info-card {
  background: var(--c-bg-alt);
  padding: 1.2rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
}
.contact-info .info-card strong {
  display: block;
  color: var(--c-navy);
  margin-bottom: 0.3rem;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.contact-info .info-card span { color: var(--c-text); }

/* ====================== Supplier / contact cards ===================== */
.supplier-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.supplier-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(212,160,23,0.4);
}
.supplier-card .supplier-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.supplier-card h3 {
  margin: 0;
  color: var(--c-navy);
  font-size: 1.08rem;
  line-height: 1.3;
  font-weight: 700;
}
.supplier-card .country {
  background: var(--c-navy);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  white-space: nowrap;
  text-transform: uppercase;
  flex-shrink: 0;
}
.supplier-card .role {
  color: var(--c-accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin: 0.2rem 0 0.7rem;
}
.supplier-card .meta {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  margin: 0.2rem 0;
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  line-height: 1.4;
}
.supplier-card .meta strong { color: var(--c-navy); min-width: 60px; }
.supplier-card .covers {
  margin-top: 0.7rem;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--c-border);
  font-size: 0.88rem;
  color: var(--c-text-muted);
}

/* ============================ Tables ================================== */
.parts-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.parts-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 720px;
}
.parts-table thead th {
  background: var(--c-navy);
  color: #fff;
  text-align: left;
  padding: 0.85rem 1rem;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.parts-table tbody td {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--c-border);
  vertical-align: top;
}
.parts-table tbody tr:nth-child(even) { background: var(--c-bg-alt); }
.parts-table tbody tr:hover { background: #fff8e1; }
.parts-table .pn { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; color: var(--c-navy); font-weight: 600; }
.parts-table .qty { text-align: center; font-weight: 700; color: var(--c-navy); }

/* ====================== Region / stat strip ========================== */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.2rem;
  margin: 2rem 0;
}
.stat {
  text-align: center;
  padding: 1.2rem 1rem;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}
.stat .num {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: var(--c-navy);
  line-height: 1.1;
  letter-spacing: -0.5px;
}
.stat .num .accent { color: var(--c-accent-dark); }
.stat .label {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  margin-top: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* ====================== Floating CTA / scroll ======================== */
.floating-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  box-shadow: var(--shadow-lg);
  display: none;
}
@media (max-width: 720px) {
  .floating-cta { display: inline-flex; }
}

/* ====================== Fade-in animation ============================ */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(12px);
    animation: fadeUp 0.6s ease-out forwards;
  }
  .fade-in.delay-1 { animation-delay: 0.08s; }
  .fade-in.delay-2 { animation-delay: 0.16s; }
  .fade-in.delay-3 { animation-delay: 0.24s; }
  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }
}

/* ====================== Print ======================================= */
@media print {
  .site-header, .site-footer, .floating-cta, .nav-toggle { display: none; }
  section { padding: 1rem 0; }
}