/* ============================================================
   Trans Atlantic Preforms Limited - 2025 Industrial Rebuild
   Palette: Steel Grey, Safety Orange, White
   Theme supports bilingual content & dark mode
   ============================================================ */

:root {
  --color-primary: #71797e;
  --color-secondary: #ff6700;
  --color-dark: #1f262d;
  --color-light: #f4f6f8;
  --color-surface: #ffffff;
  --color-surface-alt: #e9eef3;
  --color-text: #1a1e23;
  --color-muted: #5d6770;
  --color-border: rgba(31, 38, 45, 0.15);
  --color-success: #1fbf70;
  --color-info: #007bc1;
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 60px rgba(17, 24, 32, 0.18);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition-base: all 0.3s ease;
  --max-width: 1200px;
  --header-height: 84px;
}

body[data-theme="dark"] {
  --color-primary: #9aa3ac;
  --color-secondary: #ff7f2a;
  --color-dark: #101418;
  --color-light: #0f1419;
  --color-surface: #161c22;
  --color-surface-alt: #1f262d;
  --color-text: #f8f9fa;
  --color-muted: #b0bac4;
  --color-border: rgba(255, 255, 255, 0.12);
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.65);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Montserrat", "Segoe UI", Tahoma, sans-serif;
  color: var(--color-text);
  background: var(--color-light);
  transition: background 0.3s ease, color 0.3s ease;
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

p {
  line-height: 1.7;
  color: var(--color-text);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover,
a:focus {
  color: #d45200;
}

ul, ol {
  margin-left: 1.25rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 1.5rem;
  background: var(--color-secondary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: left 0.2s ease;
}

.skip-link:focus {
  left: 1.5rem;
}

/* ========================
   Language visibility
   ======================== */
.lang-fr { display: none; }
html[lang="fr-CA"] .lang-en { display: none !important; }
html[lang="fr-CA"] .lang-fr { display: inline !important; }

/* ========================
   Layout helpers
   ======================== */
.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

.section {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.section-eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-secondary);
  font-weight: 600;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--color-dark);
}

.section-lead {
  max-width: 680px;
  margin: 1rem auto 0;
  color: var(--color-muted);
}

.grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.split {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: center;
}

/* ========================
   Header & Navigation
   ======================== */
.topbar {
  background: var(--color-dark);
  color: #fff;
  font-size: 0.9rem;
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.topbar a {
  color: #fff;
  font-weight: 500;
}

.header {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 900;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  color: var(--color-dark);
  font-size: 1.4rem;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-secondary), #ff8533);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-weight: 600;
}

.nav-links a {
  color: var(--color-dark);
  position: relative;
  padding-bottom: 0.25rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -0.35rem;
  height: 2px;
  background: transparent;
  transition: var(--transition-base);
}

.nav-links a:hover::after,
.nav-links a:focus::after,
.nav-links a[aria-current="page"]::after {
  background: var(--color-secondary);
}

.controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.language-switcher {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.language-switcher button {
  background: transparent;
  border: none;
  padding: 0.45rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-muted);
  cursor: pointer;
  transition: var(--transition-base);
}

.language-switcher button.active {
  background: var(--color-secondary);
  color: #fff;
}

.theme-toggle button {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  cursor: pointer;
  transition: var(--transition-base);
}

.theme-toggle button:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--color-dark);
  cursor: pointer;
}

/* ========================
   Buttons & Badges
   ======================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius-sm);
  border: none;
  font-weight: 600;
  padding: 0.9rem 1.6rem;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn-primary {
  background: var(--color-secondary);
  color: #fff;
}

.btn-primary:hover,
.btn-primary:focus {
  background: #d45200;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-dark);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover,
.btn-secondary:focus {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-secondary);
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(255, 103, 0, 0.12);
  color: var(--color-secondary);
  font-weight: 600;
  font-size: 0.88rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--color-surface-alt);
  color: var(--color-muted);
  font-size: 0.85rem;
  font-weight: 600;
}

/* ========================
   Hero Section
   ======================== */
.hero {
  position: relative;
  background: radial-gradient(circle at 10% 20%, rgba(255, 103, 0, 0.18), transparent 65%),
              radial-gradient(circle at 90% 30%, rgba(113, 121, 126, 0.25), transparent 50%),
              var(--color-surface);
  padding: clamp(4rem, 8vw, 6.5rem) 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.0) 0%, rgba(255, 255, 255, 0.25) 50%, rgba(255, 255, 255, 0.0) 100%);
  opacity: 0.18;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 3rem;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.4rem);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.1;
  margin: 1.25rem 0;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
}

.metric-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 1.4rem;
  border: 1px solid var(--color-border);
}

.metric-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.metric-label {
  color: var(--color-muted);
}

.hero-illustration {
  position: relative;
  display: grid;
  gap: 1rem;
}

.hero-illustration .dashboard {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.dashboard-chart {
  height: 180px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 103, 0, 0.18), rgba(113, 121, 126, 0.18));
  position: relative;
  overflow: hidden;
}

.dashboard-chart::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: inherit;
  border: 1px dashed rgba(255, 255, 255, 0.35);
}

/* ========================
   Cards & Content Blocks
   ======================== */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: clamp(1.5rem, 3vw, 2.2rem);
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card h3 {
  font-size: 1.4rem;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-muted);
}

.icon-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 103, 0, 0.15);
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

/* ========================
   Tables & Data blocks
   ======================== */
.table-responsive {
  overflow-x: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
}

.spec-table thead {
  background: var(--color-surface-alt);
}

.spec-table th,
.spec-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: 0.95rem;
}

.spec-table tbody tr:hover {
  background: rgba(255, 103, 0, 0.08);
}

.search-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.search-input {
  flex: 1 1 220px;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.filter-chip {
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-muted);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
}

.filter-chip.active {
  background: var(--color-secondary);
  color: #fff;
  border-color: transparent;
}

/* ========================
   Accordions
   ======================== */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.accordion-item + .accordion-item {
  border-top: 1px solid var(--color-border);
}

.accordion-button {
  width: 100%;
  text-align: left;
  padding: 1.1rem 1.4rem;
  background: transparent;
  border: none;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  color: var(--color-dark);
}

.accordion-button span {
  transition: transform 0.3s ease;
}

.accordion-button[aria-expanded="true"] span {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding-inline: 1.4rem;
}

.accordion-content p,
.accordion-content ul {
  padding-block: 1rem;
  color: var(--color-muted);
}

/* ========================
   Forms
   ======================== */
.form-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.form-control {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-control label {
  font-weight: 600;
  color: var(--color-dark);
}

.form-control input,
.form-control select,
.form-control textarea {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 1rem;
}

.form-control textarea {
  min-height: 160px;
}

.notice {
  background: rgba(31, 191, 112, 0.12);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  border: 1px solid rgba(31, 191, 112, 0.3);
  color: var(--color-dark);
}

/* ========================
   Timeline & Data bands
   ======================== */
.timeline {
  display: grid;
  gap: 1.75rem;
}

.timeline-item {
  display: grid;
  gap: 0.6rem;
  border-left: 3px solid var(--color-secondary);
  padding-left: 1.25rem;
}

.timeline-item strong {
  font-size: 1.1rem;
  color: var(--color-dark);
}

.data-band {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: space-between;
  align-items: center;
}

.data-band .stat {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-secondary);
}

/* ========================
   CTA & Banners
   ======================== */
.cta-banner {
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 5vw, 3.5rem);
  background: linear-gradient(130deg, rgba(255, 103, 0, 0.85), rgba(113, 121, 126, 0.85));
  color: #fff;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.cta-banner h2 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  margin-bottom: 1rem;
  color: #fff;
}

/* ========================
   Footer
   ======================== */
.footer {
  background: var(--color-dark);
  color: #dfe7ef;
  padding: 3rem 0 2rem;
}

.footer .grid {
  gap: 2rem;
}

.footer a {
  color: #dfe7ef;
}

.footer h4 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: #fff;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.trust-marks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.trust-mark {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-weight: 600;
  font-size: 0.85rem;
}

.footer-meta {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: 0.9rem;
}

/* ========================
   Utility classes
   ======================== */
.text-muted { color: var(--color-muted); }
.text-accent { color: var(--color-secondary); }
.bg-surface { background: var(--color-surface); }
.bg-alt { background: var(--color-surface-alt); }
.shadow { box-shadow: var(--shadow-sm); }
.rounded-lg { border-radius: var(--radius-lg); }

.equal-height {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.equal-height .card {
  height: 100%;
}

.stat-panel {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  display: grid;
  gap: 0.35rem;
}

.stat-panel strong {
  font-size: 2.1rem;
  color: var(--color-secondary);
}

/* Focus states */
.btn:focus-visible,
.language-switcher button:focus-visible,
.theme-toggle button:focus-visible,
.mobile-menu-toggle:focus-visible,
.nav-links a:focus-visible,
.filter-chip:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 3px;
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  border-color: var(--color-secondary);
}

/* ========================
   Responsive behaviour
   ======================== */
@media (max-width: 1024px) {
  .nav-links {
    position: fixed;
    inset: calc(var(--header-height) + 10px) 1.5rem auto;
    flex-direction: column;
    background: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(-130%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s ease, opacity 0.35s ease;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-menu-toggle {
    display: block;
  }
}

@media (max-width: 768px) {
  .topbar .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .metrics-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .hero {
    padding-top: 3.5rem;
  }

  .cta-banner {
    text-align: left;
  }

  .footer .grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}