/* HESCO Bill Online Portal - Official Color Scheme & Modern UI */
:root {
  --primary-green: #006837;
  --primary-green-dark: #004d28;
  --primary-green-light: #e6f4ed;
  --secondary-navy: #0a2540;
  --secondary-navy-light: #1e3a8a;
  --accent-yellow: #ffb703;
  --accent-yellow-light: #fff8e1;
  --alert-red: #dc3545;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --radius: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Screen Reader Only helper for 100% Agentic Accessibility */
.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;
}

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

a:hover {
  color: var(--primary-green-dark);
  text-decoration: underline;
}

/* Header & Navigation */
.site-header {
  background-color: var(--secondary-navy);
  color: #ffffff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  border-bottom: 3px solid var(--accent-yellow);
}

.header-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0.8rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none !important;
}

.brand-logo svg {
  width: 38px;
  height: 38px;
  fill: var(--accent-yellow);
}

.brand-title {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-title span:first-child {
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.brand-title span:last-child {
  color: var(--accent-yellow);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Desktop Nav */
.desktop-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.8rem;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--accent-yellow);
  text-decoration: none;
}

/* Mobile Nav Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: #ffffff;
}

.mobile-menu-toggle svg {
  width: 28px;
  height: 28px;
  stroke: #ffffff;
}

.mobile-nav-drawer {
  display: none;
  background-color: var(--secondary-navy);
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.mobile-nav-drawer.active {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-nav-drawer .nav-link {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* Main Container */
.main-wrapper {
  max-width: 1140px;
  margin: 2rem auto;
  padding: 0 1.25rem;
}

/* Content Container */
.content-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

/* Typography Hierarchy strictly H1 -> H2 -> H3 */
h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--secondary-navy);
  margin-bottom: 1.25rem;
  line-height: 1.2;
  border-bottom: 3px solid var(--primary-green);
  padding-bottom: 0.5rem;
  display: inline-block;
}

h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-green);
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 8px;
}

h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 24px;
  background-color: var(--accent-yellow);
  border-radius: 4px;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary-navy);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  font-size: 1.025rem;
  color: #334155;
  margin-bottom: 1.2rem;
}

ul, ol {
  margin-bottom: 1.2rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
  font-size: 1rem;
  color: #334155;
}

/* Interactive Bill Checker Tool Component */
.tool-box-container {
  background: linear-gradient(135deg, var(--secondary-navy) 0%, #1e3a8a 100%);
  border-radius: var(--radius);
  padding: 2rem;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  margin: 1.5rem 0 2.5rem 0;
  border: 2px solid var(--accent-yellow);
  position: relative;
  overflow: hidden;
}

.tool-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.tool-badge {
  background-color: var(--accent-yellow);
  color: var(--secondary-navy);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.tool-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
}

.tool-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 1.5rem;
}

.tab-btn {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.2);
  color: #ffffff;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.active, .tab-btn:hover {
  background: var(--primary-green);
  color: #ffffff;
  border-color: var(--primary-green);
}

.form-group-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 12px;
  align-items: center;
}

.input-style {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  border: 2px solid rgba(255,255,255,0.3);
  font-size: 1.05rem;
  font-weight: 600;
  outline: none;
  background-color: #ffffff;
  color: var(--text-dark);
}

.input-style:focus {
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 3px rgba(255, 183, 3, 0.3);
}

.select-style {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  border: 2px solid rgba(255,255,255,0.3);
  font-size: 1rem;
  font-weight: 600;
  outline: none;
  background-color: #ffffff;
  color: var(--text-dark);
  cursor: pointer;
}

.btn-check-now {
  background-color: var(--primary-green);
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 800;
  padding: 0.85rem 1.5rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  width: 100%;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 104, 55, 0.4);
}

.btn-check-now:hover {
  background-color: #008746;
  transform: translateY(-1px);
}

/* Modern Step Card / Feature Box Component */
.feature-step-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary-green);
  padding: 1.2rem 1.5rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.25s ease-in-out;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.feature-step-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 104, 55, 0.12);
  border-left-color: var(--accent-yellow);
}

.feature-step-card.navy-border {
  border-left-color: var(--secondary-navy);
}

.feature-step-card.navy-border:hover {
  border-left-color: var(--accent-yellow);
}

.step-card-title {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--secondary-navy);
  display: flex;
  align-items: center;
  gap: 10px;
}

.step-badge-pill {
  background-color: var(--primary-green-light);
  color: var(--primary-green-dark);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.step-card-desc {
  color: #475569;
  font-size: 0.98rem;
  line-height: 1.5;
  margin-bottom: 0;
}

/* Styled FAQ Card Component */
.faq-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.03);
  transition: all 0.2s ease;
  border-top: 3px solid var(--secondary-navy);
}

.faq-card:hover {
  border-top-color: var(--primary-green);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.faq-card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.15rem;
  color: var(--secondary-navy);
}

.faq-card p {
  margin-bottom: 0;
  color: #475569;
}

/* Styled Tables */
.custom-table-wrapper {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background-color: #ffffff;
}

th {
  background-color: var(--secondary-navy);
  color: #ffffff;
  padding: 0.9rem 1rem;
  font-weight: 700;
  font-size: 0.95rem;
  border-bottom: 3px solid var(--accent-yellow);
}

td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: #334155;
  font-size: 0.95rem;
}

tr:nth-child(even) {
  background-color: #f8fafc;
}

tr:hover {
  background-color: var(--primary-green-light);
}

/* Footer Styling */
.site-footer {
  background-color: var(--secondary-navy);
  color: #cbd5e1;
  padding: 2.5rem 1.25rem 1.5rem 1.25rem;
  margin-top: 3rem;
  border-top: 4px solid var(--primary-green);
}

.footer-container {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--accent-yellow);
  text-decoration: underline;
}

.footer-copyright {
  font-size: 0.875rem;
  color: #94a3b8;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1rem;
  width: 100%;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }

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

  .form-group-row {
    grid-template-columns: 1fr;
  }

  .content-card {
    padding: 1.5rem 1rem;
  }

  h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  h3 {
    font-size: 1.1rem;
  }

  .tool-box-container {
    padding: 1.25rem;
  }
}