/**
 * Kullson Engineered Technologies — Main Stylesheet
 * Phase 1: Design system, layout, header/footer, components
 */

/* ==========================================================================
   CSS Variables — Brand Palette
   ========================================================================== */
:root {
  --color-navy: #0B1F33;
  --color-blue: #145DA0;
  --color-steel: #5E6B73;
  --color-bg: #F5F7FA;
  --color-white: #FFFFFF;
  --color-accent: #F28C28;
  --color-text: #1A1A1A;
  --color-success: #1F8A5B;
  --color-warning: #D97706;
  --color-border: #DDE3EA;

  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Manrope', 'Inter', system-ui, sans-serif;

  --container-max: 1200px;
  --header-height: 80px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(11, 31, 51, 0.08);
  --shadow-lg: 0 12px 40px rgba(11, 31, 51, 0.12);
  --transition: 0.25s ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--color-accent); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
  margin-top: 0;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); }

p { margin: 0 0 1rem; }

ul, ol { margin: 0; padding: 0; }

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-navy);
  color: var(--color-white);
  padding: 0.75rem 1rem;
  z-index: 9999;
  border-radius: var(--radius);
}

.skip-link:focus { top: 1rem; }

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: var(--color-bg);
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-header .lead {
  font-size: 1.125rem;
  color: var(--color-steel);
  max-width: 720px;
}

.text-center { text-align: center; }
.text-center .lead { margin-left: auto; margin-right: auto; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1rem; }

.btn-primary {
  background: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
}

.btn-primary:hover {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.8);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-navy);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: #d97a1f;
  border-color: #d97a1f;
  color: var(--color-white);
}

.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  border-color: transparent;
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  color: var(--color-white);
}

.btn-text {
  background: none;
  border: none;
  color: var(--color-steel);
  padding: 0.5rem 1rem;
}

.btn-text:hover { color: var(--color-navy); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(11, 31, 51, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-navy);
  flex-shrink: 0;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-blue));
  color: var(--color-white);
  font-weight: 800;
  font-size: 0.75rem;
  border-radius: var(--radius);
  letter-spacing: 0.05em;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  font-size: 0.8125rem;
  color: var(--color-steel);
}

.logo-text strong {
  font-size: 1rem;
  color: var(--color-navy);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  transition: var(--transition);
  margin: 0 auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-list > li > a,
.nav-list > li > .dropdown-trigger {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-navy);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.nav-list > li > a:hover,
.nav-list > li > .dropdown-trigger:hover {
  background: var(--color-bg);
  color: var(--color-blue);
}

.nav-careers {
  color: var(--color-accent) !important;
  font-weight: 600 !important;
}

.has-dropdown { position: relative; }

.dropdown-trigger .caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 4px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  vertical-align: middle;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  list-style: none;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  z-index: 100;
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--color-navy);
}

.dropdown-menu a:hover {
  background: var(--color-bg);
  color: var(--color-blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-phone {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-navy);
  white-space: nowrap;
}

.header-phone:hover { color: var(--color-blue); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  color: var(--color-white);
  overflow: hidden;
}

.hero-placeholder {
  background: linear-gradient(135deg, rgba(11,31,51,0.92) 0%, rgba(20,93,160,0.85) 100%),
              url('../images/hero-industrial.jpg') center/cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,31,51,0.3) 0%, rgba(11,31,51,0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 1.25rem;
  max-width: 900px;
}

.hero-eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.95;
  margin-bottom: 2rem;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
}

.trust-badges li {
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.card-grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card h3 { margin-bottom: 0.75rem; }

.card code {
  font-size: 0.8125rem;
  background: var(--color-bg);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-navy);
  color: rgba(255,255,255,0.85);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 1rem 0;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-white);
}

.footer-logo .logo-mark {
  width: 40px;
  height: 40px;
  font-size: 0.6875rem;
}

.footer-contact {
  list-style: none;
}

.footer-contact li { margin-bottom: 0.5rem; font-size: 0.9375rem; }

.footer-contact a { color: rgba(255,255,255,0.9); }
.footer-contact a:hover { color: var(--color-accent); }

.footer-links h3 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-links ul { list-style: none; }

.footer-links li { margin-bottom: 0.5rem; }

.footer-links a {
  color: rgba(255,255,255,0.75);
  font-size: 0.9375rem;
}

.footer-links a:hover { color: var(--color-white); }

.footer-legal {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 2rem;
}

.legal-disclaimer {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1rem;
}

.copyright {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  margin: 0;
}

/* ==========================================================================
   Forms (foundation)
   ========================================================================== */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  color: var(--color-navy);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(20, 93, 160, 0.15);
}

textarea.form-control { min-height: 140px; resize: vertical; }

.form-error { color: #c0392b; font-size: 0.8125rem; margin-top: 0.35rem; }

.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.alert-success { background: #e8f5ef; color: var(--color-success); border: 1px solid #b8e0cc; }
.alert-error { background: #fdecea; color: #c0392b; border: 1px solid #f5c6cb; }
.alert-info { background: #e8f0f8; color: var(--color-blue); border: 1px solid #b8d4f0; }

/* ==========================================================================
   Hiring Popup
   ========================================================================== */
.hiring-popup {
  position: fixed;
  inset: 0;
  background: rgba(11, 31, 51, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.hiring-popup.is-visible {
  opacity: 1;
  visibility: visible;
}

.hiring-popup-content {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 520px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}

.hiring-popup-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-steel);
  cursor: pointer;
  padding: 0.25rem;
}

.hiring-popup h2 {
  font-size: 1.25rem;
  padding-right: 2rem;
  margin-bottom: 1rem;
}

.hiring-popup-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.hiring-popup .btn-outline {
  color: var(--color-navy);
  border-color: var(--color-border);
}

.hiring-popup .btn-outline:hover {
  background: var(--color-bg);
  color: var(--color-blue);
}

/* ==========================================================================
   Back to Top
   ========================================================================== */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  background: var(--color-blue);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  z-index: 900;
}

.back-to-top:hover {
  background: var(--color-navy);
  transform: translateY(-2px);
}

.back-to-top[hidden] { display: none; }

/* ==========================================================================
   Phase 2 — Page components
   ========================================================================== */
.page-hero {
  position: relative;
  padding: 5rem 0 4rem;
  color: var(--color-white);
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,31,51,0.95), rgba(20,93,160,0.88)),
    url('../images/hero-industrial.jpg') center/cover no-repeat;
  z-index: 0;
}

.page-hero-inner { position: relative; z-index: 1; max-width: 800px; }
.page-hero h1 { color: var(--color-white); margin-bottom: 1rem; }
.page-hero-lead { font-size: 1.125rem; opacity: 0.92; line-height: 1.7; margin-bottom: 1.5rem; }

.breadcrumb { padding: 1rem 0 0; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; font-size: 0.875rem; }
.breadcrumb li::after { content: '/'; margin-left: 0.5rem; color: rgba(255,255,255,0.5); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb span { color: var(--color-accent); }

.eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.split-grid-reverse .split-content { order: 2; }
.split-grid-reverse .split-visual { order: 1; }

.visual-block {
  background: linear-gradient(145deg, var(--color-navy), var(--color-blue));
  border-radius: var(--radius-lg);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 4rem;
  font-weight: 800;
  position: relative;
  overflow: hidden;
}

.visual-block::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255,255,255,0.03) 10px,
    rgba(255,255,255,0.03) 20px
  );
}

.img-placeholder {
  background: linear-gradient(135deg, #1a3a5c 0%, #2a6cb0 50%, #0B1F33 100%);
  min-height: 200px;
  border-radius: var(--radius);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.stat-item {
  padding: 2rem 1rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-blue);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-steel);
  font-weight: 500;
}

.stat-note {
  font-size: 0.6875rem;
  color: var(--color-steel);
  margin-top: 0.35rem;
  opacity: 0.8;
}

.icon-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition);
}

.icon-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.icon-card-icon {
  width: 48px;
  height: 48px;
  color: var(--color-blue);
  margin-bottom: 1rem;
}

.icon-card-icon svg { width: 100%; height: 100%; }

.icon-card h3 { margin-bottom: 0.75rem; font-size: 1.125rem; }
.icon-card p { font-size: 0.9375rem; color: var(--color-steel); margin-bottom: 0; }

.card-grid-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.card-grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.service-card .meta {
  margin: 1rem 0;
  font-size: 0.8125rem;
}

.service-card .meta dt {
  font-weight: 600;
  color: var(--color-navy);
  margin-top: 0.5rem;
}

.service-card .meta dd { margin: 0.25rem 0 0; color: var(--color-steel); }

.material-card h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.material-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: var(--color-bg);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--color-blue);
  font-weight: 600;
  margin: 0.25rem 0.25rem 0 0;
}

.industry-card {
  text-align: center;
  padding: 2rem 1.5rem;
}

.industry-card .icon-card-icon { margin: 0 auto 1rem; }

.process-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  list-style: none;
  counter-reset: process;
}

.process-step {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
}

.process-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-blue);
  color: var(--color-white);
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 1rem;
}

.process-content h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.process-content p { font-size: 0.875rem; color: var(--color-steel); margin: 0; }

.process-flow-horizontal {
  grid-template-columns: repeat(7, 1fr);
}

.infographic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.info-cell {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  border: 1px solid var(--color-border);
}

.info-cell strong {
  display: block;
  color: var(--color-navy);
  font-size: 0.9375rem;
  margin-bottom: 0.35rem;
}

.info-cell span { font-size: 0.8125rem; color: var(--color-steel); }

.cta-banner {
  background: linear-gradient(135deg, var(--color-navy), var(--color-blue));
  color: var(--color-white);
  padding: 3.5rem 0;
}

.cta-banner h2 { color: var(--color-white); margin-bottom: 0.75rem; }
.cta-banner p { opacity: 0.9; margin: 0; max-width: 560px; }

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-banner-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.cta-banner .btn-outline {
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}

.cta-banner .btn-outline:hover {
  background: var(--color-white);
  color: var(--color-navy);
}

.feature-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
}

.feature-list li::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  background: var(--color-success);
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/contain no-repeat;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.value-card {
  padding: 1.5rem;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-accent);
}

.timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 2px solid var(--color-border);
}

.timeline-item { margin-bottom: 2rem; position: relative; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  background: var(--color-blue);
  border-radius: 50%;
  transform: translateX(-5px);
}

.timeline-item .year {
  font-weight: 700;
  color: var(--color-blue);
  font-size: 0.875rem;
}

.timeline-placeholder {
  font-size: 0.75rem;
  color: var(--color-warning);
  font-style: italic;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-navy);
}

.filter-btn:hover,
.filter-btn.is-active {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-white);
}

.portfolio-card {
  overflow: hidden;
  padding: 0;
  cursor: pointer;
}

.portfolio-card .img-placeholder { border-radius: 0; min-height: 180px; }

.portfolio-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border-radius: 0;
}

.split-visual-photo {
  background-size: cover;
  background-position: center;
  min-height: 320px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.site-header .logo-image {
  height: 52px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  display: block;
}

@media (max-width: 900px) {
  .site-header .logo-image {
    height: 44px;
    max-width: 180px;
  }
}

.footer-logo-image {
  max-width: 220px;
  height: auto;
  margin-bottom: 1rem;
  display: block;
}

.site-header .logo:has(.logo-image) {
  gap: 0;
}

.site-header .logo:has(.logo-image) .logo-mark,
.site-header .logo:has(.logo-image) .logo-text {
  display: none;
}
.portfolio-card-body { padding: 1.25rem; }
.portfolio-card .tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.75rem; }

.portfolio-item[data-hidden="true"] { display: none; }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(11,31,51,0.9);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.lightbox.is-open { opacity: 1; visibility: visible; }

.lightbox-content {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--color-bg);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  z-index: 1;
}

.lightbox-body { padding: 2rem; }

.faq-list { display: grid; gap: 0.75rem; }

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1rem 1.25rem;
  background: var(--color-white);
  border: none;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color-blue);
  transition: transform var(--transition);
}

.faq-item.is-open .faq-question::after { transform: rotate(45deg); }

.faq-answer {
  display: none;
  padding: 0 1.25rem 1rem;
  font-size: 0.9375rem;
  color: var(--color-steel);
}

.faq-item.is-open .faq-answer { display: block; }

.form-page { max-width: 720px; margin: 0 auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-check { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.875rem; }
.form-check input { margin-top: 0.25rem; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.contact-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
}

.contact-card h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.contact-card p { font-size: 0.9375rem; margin: 0; color: var(--color-steel); }

.map-placeholder {
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-steel);
  font-size: 0.9375rem;
  text-align: center;
  padding: 1rem;
}

.verify-result {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--color-border);
  margin-top: 2rem;
}

.verify-result dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.5rem;
  margin: 1rem 0;
}

.verify-result dt { font-weight: 600; color: var(--color-navy); }
.verify-result dd { margin: 0; color: var(--color-steel); }

.status-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
}

.status-active { background: #e8f5ef; color: var(--color-success); }
.status-expired { background: #fdecea; color: #c0392b; }
.status-review { background: #fff4e5; color: var(--color-warning); }
.status-revoked { background: #eee; color: var(--color-steel); }

.legal-content { max-width: 800px; margin: 0 auto; }
.legal-content h2 { font-size: 1.25rem; margin: 2rem 0 0.75rem; }
.legal-content h3 { font-size: 1.0625rem; margin: 1.5rem 0 0.5rem; }
.legal-content ul { margin: 0 0 1rem 1.25rem; }
.legal-content li { margin-bottom: 0.35rem; }

.cert-placeholder {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  background: var(--color-bg);
}

.cert-placeholder span {
  display: block;
  font-size: 0.75rem;
  color: var(--color-warning);
  margin-top: 0.5rem;
}

.machinery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.875rem;
  margin-top: 1rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-video-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-header.is-scrolled {
  box-shadow: 0 4px 20px rgba(11, 31, 51, 0.1);
}

.hero-home .hero-overlay { z-index: 1; position: absolute; inset: 0; }
.hero-home .hero-content { z-index: 2; position: relative; }

.btn-dark {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

.btn-dark:hover {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-white);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border);
}

.btn-outline-dark:hover {
  background: var(--color-bg);
  color: var(--color-blue);
  border-color: var(--color-blue);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section-dark {
  background: var(--color-navy);
  color: rgba(255,255,255,0.9);
}

.section-dark h2,
.section-dark h3 { color: var(--color-white); }

.section-dark .lead { color: rgba(255,255,255,0.75); }

.careers-banner {
  background: linear-gradient(135deg, #0d2840, var(--color-blue));
  color: var(--color-white);
  padding: 3rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.careers-banner h2 { color: var(--color-white); margin-bottom: 0.5rem; }

.job-preview-note {
  text-align: center;
  padding: 3rem;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--color-border);
}

/* ==========================================================================
   Careers — Job Listings (Phase 3)
   ========================================================================== */
.jobs-toolbar {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.jobs-search { margin-bottom: 1rem; }

.jobs-filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  align-items: end;
}

.jobs-filters .form-group { margin-bottom: 0; }
.jobs-filters label { font-size: 0.8125rem; }

.jobs-count {
  font-size: 0.9375rem;
  color: var(--color-steel);
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.jobs-list {
  display: grid;
  gap: 1rem;
}

.job-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.job-card:hover {
  box-shadow: var(--shadow);
  border-color: rgba(20, 93, 160, 0.25);
}

.job-card[data-hidden="true"] { display: none; }

.job-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.job-card-header h3 {
  font-size: 1.125rem;
  margin: 0;
}

.job-category-badge {
  flex-shrink: 0;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.job-category-skilled {
  background: #e8f0f8;
  color: var(--color-blue);
}

.job-category-unskilled {
  background: #fff4e5;
  color: var(--color-warning);
}

.job-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  color: var(--color-steel);
}

.job-meta strong { color: var(--color-navy); font-weight: 600; }

.job-desc {
  font-size: 0.9375rem;
  color: var(--color-steel);
  margin-bottom: 1rem;
}

.job-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.jobs-no-results {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
}

.jobs-no-results h3 { margin-bottom: 0.5rem; }

/* ==========================================================================
   Admin Panel
   ========================================================================== */
.admin-body {
  background: var(--color-bg);
  min-height: 100vh;
}

.admin-header {
  background: var(--color-navy);
  color: var(--color-white);
  padding: 0.75rem 0;
}

.admin-header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-white);
  font-weight: 700;
  text-decoration: none;
}

.admin-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  flex: 1;
}

.admin-nav a {
  color: rgba(255,255,255,0.75);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
}

.admin-nav a:hover,
.admin-nav a.is-active {
  color: var(--color-white);
}

.admin-user {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
}

.admin-main {
  padding: 2rem 0 3rem;
}

.admin-main h1 {
  margin-bottom: 0.5rem;
}

.admin-lead {
  color: var(--color-steel);
  margin-bottom: 1.5rem;
}

.admin-footer {
  padding: 1rem 0;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-steel);
}

.admin-footer p { margin: 0; }

.admin-login-box {
  max-width: 420px;
  margin: 0 auto;
}

.admin-login-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.admin-login-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.admin-login-brand h1 {
  font-size: 1.25rem;
  margin: 0;
}

.admin-login-note {
  margin-top: 1rem;
  font-size: 0.875rem;
  text-align: center;
}

.admin-table-wrap {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow-x: auto;
}

.admin-count {
  padding: 1rem 1.25rem 0;
  font-size: 0.875rem;
  color: var(--color-steel);
  margin: 0;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.admin-table th,
.admin-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.admin-table th {
  background: var(--color-bg);
  font-weight: 600;
  color: var(--color-navy);
  white-space: nowrap;
}

.admin-table tbody tr:hover {
  background: rgba(245, 247, 250, 0.6);
}

.admin-actions {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.admin-detail-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.admin-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.admin-detail-header h2 {
  font-size: 1.25rem;
  margin: 0;
}

.admin-detail-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.5rem 1rem;
  margin-bottom: 1.25rem;
}

.admin-detail-grid dt {
  font-weight: 600;
  color: var(--color-navy);
}

.admin-detail-grid dd {
  margin: 0;
  color: var(--color-steel);
}

.admin-message-box {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.admin-message-box h3 {
  font-size: 0.9375rem;
  margin-bottom: 0.5rem;
}

.admin-message-box p {
  margin: 0;
  font-size: 0.9375rem;
}

.admin-login-page .section {
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.admin-login-brand p {
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-steel);
}

.admin-login-btn {
  width: 100%;
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.admin-header-link {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
}

.admin-header-link:hover {
  color: var(--color-white);
}

.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.admin-stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.admin-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  color: inherit;
}

.admin-stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-blue);
  line-height: 1;
}

.admin-stat-label {
  font-size: 0.875rem;
  color: var(--color-steel);
  margin-top: 0.5rem;
}

.admin-dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.admin-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.admin-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.admin-panel-header h2 {
  font-size: 1rem;
  margin: 0;
}

.admin-panel-header a {
  font-size: 0.8125rem;
  font-weight: 600;
}

.admin-activity-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.admin-activity-list li {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}

.admin-activity-list li:last-child {
  border-bottom: none;
}

.admin-activity-list a {
  text-decoration: none;
  color: inherit;
}

.admin-activity-list a:hover strong {
  color: var(--color-blue);
}

.admin-activity-list strong {
  display: block;
  color: var(--color-navy);
}

.admin-activity-list span {
  display: block;
  color: var(--color-steel);
  font-size: 0.8125rem;
}

.admin-activity-list time {
  font-size: 0.75rem;
  color: var(--color-steel);
  white-space: nowrap;
}

.admin-empty {
  color: var(--color-steel);
  font-size: 0.875rem;
  margin: 0;
}

.admin-quick-links {
  margin-top: 0;
}

.admin-form-card {
  max-width: 480px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

@media (max-width: 768px) {
  .admin-header-inner { flex-direction: column; align-items: flex-start; }
  .admin-detail-grid { grid-template-columns: 1fr; }
  .admin-detail-grid dt { margin-top: 0.5rem; }
  .admin-stats-grid { grid-template-columns: 1fr 1fr; }
  .admin-dashboard-grid { grid-template-columns: 1fr; }
}

.breadcrumb-bar {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 0.65rem 0;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8125rem;
}

.breadcrumb-list li::after {
  content: '/';
  margin-left: 0.35rem;
  color: var(--color-steel);
}

.breadcrumb-list li:last-child::after {
  display: none;
}

.breadcrumb-list a {
  color: var(--color-blue);
}

.breadcrumb-list span {
  color: var(--color-steel);
}

/* ==========================================================================
   Page placeholder (Phase 1 stubs)
   ========================================================================== */
.page-hero-simple {
  background: linear-gradient(135deg, var(--color-navy), var(--color-blue));
  color: var(--color-white);
  padding: 4rem 0;
  text-align: center;
}

.page-hero-simple h1 { color: var(--color-white); margin-bottom: 0.75rem; }

.page-hero-simple p {
  font-size: 1.125rem;
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    gap: 1rem;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition);
  }

  .main-nav.is-open { transform: translateX(0); }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list > li > a,
  .nav-list > li > .dropdown-trigger {
    padding: 0.875rem 0.5rem;
    border-bottom: 1px solid var(--color-border);
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    display: none;
  }

  .has-dropdown.is-open .dropdown-menu { display: block; }

  .nav-actions {
    flex-direction: column;
    align-items: stretch;
    margin-top: auto;
  }

  .header-phone { text-align: center; }

  .nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-active span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .split-grid { grid-template-columns: 1fr; }
  .split-grid-reverse .split-content,
  .split-grid-reverse .split-visual { order: unset; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .process-flow-horizontal { grid-template-columns: 1fr; }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .cta-banner-actions { justify-content: center; }
}

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}