/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(12, 12, 14, 0.08); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 1.5rem;
}

/* Logo art is silver-on-black; invert it so it sits naturally on white */
.brand-logo { height: 36px; width: auto; filter: invert(1); }

/* ---------- Primary nav ---------- */
.main-nav { display: flex; align-items: center; gap: 0.35rem; }

.main-nav .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  border: none;
  background: none;
  font-family: var(--font-body);
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}
.main-nav .nav-link:hover { color: var(--ink); background: var(--surface-2); }
.main-nav .nav-link.active,
.main-nav .nav-item.active > .nav-link { color: var(--ink); background: var(--surface-2); font-weight: 600; }

.nav-caret { transition: transform var(--transition); margin-top: 1px; }
.nav-item.open > .nav-drop-btn .nav-caret { transform: rotate(180deg); }
.main-nav .nav-cta {
  font-size: 0.9rem;
  font-weight: 600;
  margin-left: 0.5rem;
  background: var(--ink);
  color: #fff;
  border-radius: 999px;
  padding: 0.55rem 1.35rem;
  transition: background var(--transition), transform var(--transition);
}
.main-nav .nav-cta:hover,
.main-nav .nav-cta.active { background: #2c2c31; color: #fff; transform: translateY(-1px); }

/* ---------- Dropdowns / mega menu ---------- */
.nav-item { position: relative; }

.dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 110;
}
/* Bridge the hover gap between trigger and panel */
.dropdown::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 14px;
}

@media (min-width: 961px) {
  .nav-item:hover > .dropdown,
  .nav-item:focus-within > .dropdown,
  .nav-item.open > .dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
}

.mega-menu { width: min(720px, calc(100vw - 3rem)); padding: 1.4rem 1.4rem 1.1rem; }

.mega-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0.5rem 0.9rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.7rem;
}
.mega-title {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.mega-all {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}
.mega-all:hover { color: var(--accent); }

.mega-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.15rem 0.6rem; }

.mega-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.65rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.mega-item:hover { background: var(--surface-2); }

.mega-icon {
  flex: 0 0 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  transition: transform var(--transition);
}
.mega-item:hover .mega-icon { transform: scale(1.06); }

.mega-text { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; }
.mega-name { font-size: 0.92rem; font-weight: 600; color: var(--ink); line-height: 1.3; }
.mega-desc { font-size: 0.8rem; color: var(--text-muted); line-height: 1.45; }
.mega-item:hover .mega-name { color: var(--ink); }

.drop-panel { width: 320px; padding: 0.6rem; left: 50%; }
.drop-item {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.drop-item:hover { background: var(--surface-2); }
.drop-item-all { border-top: 1px solid var(--border); border-radius: 0 0 var(--radius-sm) var(--radius-sm); margin-top: 0.35rem; padding-top: 0.75rem; }

/* ---------- Mobile nav toggle ---------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); transition: transform var(--transition), opacity var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  padding: 0.78rem 1.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #2c2c31; color: #fff; transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { border-color: var(--border-strong); color: var(--ink); background: var(--bg); }
.btn-outline:hover { border-color: var(--ink); color: var(--ink); transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #1d4ed8; color: #fff; transform: translateY(-2px); }

/* ---------- Cards ---------- */
.card-grid { display: grid; gap: 1.4rem; }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.card h3 { color: var(--ink); margin: 0.9rem 0 0.55rem; }

/* Icon cards (product/division grids) are fully center-aligned */
.card:has(> .card-icon) { text-align: center; }
.card:has(> .card-icon) .card-icon { margin-left: auto; margin-right: auto; }
.card p { font-size: 0.94rem; }
.card .card-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-muted);
  transition: color var(--transition);
}
.card:hover .card-link { color: var(--ink); }

.card-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1;
  padding: 0;
  border-radius: var(--radius-sm);
  background: var(--ink);
  border: 1px solid var(--ink);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

/* ---------- Feature list ---------- */
.feature-list { display: grid; gap: 0.7rem; margin-top: 1.2rem; }
.feature-list li {
  position: relative;
  padding-left: 1.7rem;
  color: var(--text-muted);
}
.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 9px;
  height: 9px;
  border: 2px solid var(--ink);
  border-radius: 2px;
  transform: rotate(45deg);
}

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 1.1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }

.form-field label {
  display: block;
  font-size: 0.83rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.97rem;
  padding: 0.8rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(12, 12, 14, 0.08); }
.form-field textarea { min-height: 150px; resize: vertical; }
.form-hint { font-size: 0.8rem; color: var(--text-faint); margin-top: 0.35rem; }

/* ---------- Flash messages ---------- */
.flash { padding: 0.85rem 0; font-size: 0.95rem; border-bottom: 1px solid var(--border); }
.flash .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.flash-success { background: rgba(22, 163, 74, 0.09); color: var(--success); }
.flash-error { background: rgba(220, 38, 38, 0.09); color: var(--danger); }
.flash-close { background: none; border: none; color: inherit; font-size: 1.3rem; cursor: pointer; line-height: 1; }

/* ---------- Tables ---------- */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
.data-table th,
.data-table td { text-align: left; padding: 0.8rem 1rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table th {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.data-table td { color: var(--text-muted); }
.data-table td strong { color: var(--text); }

/* ---------- Footer (kept black for contrast) ---------- */
.site-footer { background: var(--footer-bg); border-top: 1px solid var(--footer-border); padding-top: 4rem; }
.site-footer p { color: var(--footer-text); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}
.footer-logo { height: 30px; width: auto; margin-bottom: 1.1rem; }
.footer-brand p { font-size: 0.92rem; max-width: 340px; }
.footer-col h4 {
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: #fff;
  margin-bottom: 1.1rem;
}
.footer-col a { display: block; font-size: 0.92rem; color: var(--footer-text); padding: 0.28rem 0; }
.footer-col a:hover { color: #fff; }
.footer-contact { margin-top: 1rem; font-size: 0.9rem; }
.footer-contact a { display: inline; padding: 0; }
.footer-bottom {
  border-top: 1px solid var(--footer-border);
  padding-top: 1.4rem;
  padding-bottom: 1.4rem;
}
.footer-bottom p { font-size: 0.84rem; color: var(--footer-faint); }

.social-links { display: flex; gap: 0.7rem; margin-top: 1.4rem; }
.social-links a {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--footer-border);
  border-radius: 50%;
  color: var(--footer-text);
  transition: all var(--transition);
}
.social-links a:hover { color: #fff; border-color: #fff; transform: translateY(-2px); }

/* ---------- Responsive ---------- */
@media (max-width: 1060px) {
  .main-nav .nav-link { padding: 0.5rem 0.6rem; }
}

@media (max-width: 960px) {
  .card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    inset: 74px 0 auto 0;
    max-height: calc(100vh - 74px);
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 0.6rem 1.4rem 1.4rem;
    transform: translateY(-130%);
    transition: transform 0.3s ease;
  }
  .main-nav.open { transform: none; }

  .main-nav .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 0.95rem 0.2rem;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    background: none;
  }
  .main-nav .nav-link:hover { background: none; }

  .nav-item { width: 100%; }

  /* Dropdowns become inline accordions on mobile */
  .dropdown {
    position: static;
    transform: none;
    width: 100%;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0;
    display: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .dropdown::before { display: none; }
  .nav-item.open > .dropdown { display: block; }

  .mega-menu { width: 100%; padding: 0.4rem 0 0.8rem; }
  .mega-head { display: none; }
  .mega-grid { grid-template-columns: 1fr; gap: 0; }
  .mega-item { padding: 0.55rem 0.2rem; }

  .drop-panel { width: 100%; padding: 0.4rem 0 0.8rem; }
  .drop-item { padding: 0.55rem 0.2rem; }

  .main-nav .nav-cta {
    margin: 1rem 0 0;
    text-align: center;
    padding: 0.85rem 1rem;
  }

  .card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}