/* ==========================================================================
   G.A.T PROJECTS PTY LTD - Corporate & Engineering Stylesheet
   Established 2016 | Sydney, New South Wales, Australia
   ========================================================================== */

:root {
  --primary: #0f2b48;
  --primary-dark: #091a2c;
  --primary-light: #1b4570;
  --accent: #b3822a;
  --accent-light: #d4a34b;
  --accent-subtle: #fbf7ee;
  --text-main: #1f2937;
  --text-muted: #4b5563;
  --text-light: #6b7280;
  --bg-main: #ffffff;
  --bg-alt: #f4f6f9;
  --bg-dark: #0b1d31;
  --border-color: #e2e8f0;
  --border-dark: #223c58;
  --shadow-sm: 0 1px 2px 0 rgba(15, 43, 72, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 43, 72, 0.08), 0 2px 4px -1px rgba(15, 43, 72, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(15, 43, 72, 0.1), 0 4px 6px -2px rgba(15, 43, 72, 0.05);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: all 0.25s ease-in-out;
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-main);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  flex: 1 0 auto;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  color: var(--primary-dark);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.85rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--text-muted);
}

p:last-child {
  margin-bottom: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ==========================================================================
   Top Header Bar & Navigation
   ========================================================================== */

.top-bar {
  background-color: var(--primary-dark);
  color: #cbd5e1;
  font-size: 0.825rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-dark);
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-bar-info {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.top-bar-item span.label {
  color: var(--accent-light);
  font-weight: 600;
}

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-symbol {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-sm);
  letter-spacing: -0.5px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--primary-dark);
  line-height: 1.1;
}

.brand-sub {
  font-size: 0.725rem;
  color: var(--text-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background-color: var(--bg-alt);
}

.btn-header-cta {
  background-color: var(--accent);
  color: #ffffff !important;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-md);
  margin-left: 0.75rem;
  border: 1px solid var(--accent-light);
  box-shadow: var(--shadow-sm);
}

.btn-header-cta:hover {
  background-color: var(--accent-light);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--primary);
}

.mobile-nav {
  display: none;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
}

.mobile-nav.open {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 0.65rem 0;
  font-size: 1rem;
  font-weight: 600;
  border-bottom: 1px solid #f1f5f9;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  position: relative;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #ffffff;
  padding: 4.5rem 0 4rem;
  border-bottom: 4px solid var(--accent);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(179, 130, 42, 0.2);
  border: 1px solid rgba(212, 163, 75, 0.4);
  color: #fef08a;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.75px;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  margin-bottom: 1.25rem;
}

.hero-title {
  color: #ffffff;
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.5px;
}

.hero-title span {
  color: var(--accent-light);
}

.hero-desc {
  color: #cbd5e1;
  font-size: 1.1rem;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--accent-light);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-item h4 {
  color: #ffffff;
  font-size: 1.65rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
}

.stat-item h4 span {
  color: var(--accent-light);
}

.stat-item p {
  color: #94a3b8;
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.3;
}

.hero-visual {
  position: relative;
}

.hero-card-preview {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.hero-card-preview img {
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  height: 240px;
  width: 100%;
  object-fit: cover;
}

.hero-card-tag {
  display: inline-block;
  background: var(--bg-alt);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
}

.hero-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}

.hero-card-sub {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section Styles & Components
   ========================================================================== */

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.section-subtitle {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.15rem;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.card-img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
  background-color: var(--bg-alt);
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card-img-wrap img {
  transform: scale(1.04);
}

.card-body {
  padding: 1.75rem;
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
}

.card-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  background-color: var(--bg-alt);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.85rem;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.card-text {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex: 1 0 auto;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link:hover {
  color: var(--accent);
}

/* ==========================================================================
   Interactive Tool: NSW Project Planning & Timeline Estimator
   ========================================================================== */

.tool-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
  margin-top: 1rem;
}

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

.tool-control-group {
  margin-bottom: 1.5rem;
}

.tool-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}

.tool-select, .tool-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-alt);
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.tool-select:focus, .tool-input:focus {
  border-color: var(--primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(15, 43, 72, 0.1);
}

.tool-result-box {
  background: linear-gradient(135deg, var(--bg-alt) 0%, #edf2f7 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.result-header {
  border-bottom: 1px solid #cbd5e1;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0;
  border-bottom: 1px dashed #cbd5e1;
  font-size: 0.925rem;
}

.result-item:last-child {
  border-bottom: none;
}

.result-item .k {
  color: var(--text-muted);
  font-weight: 600;
}

.result-item .v {
  font-weight: 700;
  color: var(--primary-dark);
}

.result-notice {
  background: #ffffff;
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 1.25rem;
}

/* ==========================================================================
   Compliance Matrix / Tabs / Accordions
   ========================================================================== */

.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 900px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: #ffffff;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: #ffffff;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-dark);
  cursor: pointer;
  transition: var(--transition);
}

.accordion-trigger:hover {
  background-color: var(--bg-alt);
}

.accordion-icon {
  font-size: 1.25rem;
  color: var(--accent);
  transition: transform 0.25s ease;
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  display: none;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background-color: #fafbfc;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.accordion-item.active .accordion-content {
  display: block;
}

/* ==========================================================================
   Forms & Inquiry
   ========================================================================== */

.form-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 43, 72, 0.1);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

.form-feedback {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.form-feedback.success {
  display: block;
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-feedback.error {
  display: block;
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* ==========================================================================
   Static Article / Policy Pages
   ========================================================================== */

.page-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #ffffff;
  padding: 3.5rem 0;
  border-bottom: 3px solid var(--accent);
}

.page-banner-title {
  color: #ffffff;
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.page-banner-sub {
  color: #cbd5e1;
  font-size: 1rem;
}

.content-wrapper {
  padding: 3.5rem 0;
  max-width: 900px;
  margin: 0 auto;
}

.prose h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border-color);
}

.prose h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.prose ul, .prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 0.9rem;
}

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

.prose th {
  background-color: var(--bg-alt);
  font-weight: 700;
  color: var(--primary-dark);
}

.disclaimer-box {
  background: #fffbeb;
  border: 1px solid #fef3c7;
  border-left: 4px solid #d97706;
  padding: 1.25rem;
  border-radius: var(--radius-sm);
  margin: 1.5rem 0;
  font-size: 0.9rem;
  color: #92400e;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--bg-dark);
  color: #94a3b8;
  font-size: 0.9rem;
  padding: 4rem 0 1.5rem;
  border-top: 4px solid var(--accent);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h5 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h5::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background-color: var(--accent);
}

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

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #94a3b8;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.825rem;
}

.footer-bottom p {
  color: #64748b;
  margin-bottom: 0;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .tool-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .top-bar-info {
    font-size: 0.75rem;
  }
}