/* ==========================================================================
   Digital Seva Portal - Core Stylesheet
   CSS Custom Properties, Reset, Typography, Base Layout
   ========================================================================== */

:root {
  --primary-blue: #2469D8;
  --primary-blue-hover: #1D52B0;
  --primary-blue-light: #EEF4FF;
  --dark-navy: #18243A;
  --dark-navy-surface: #22324F;
  --canvas-bg: #F3F6FA;
  --card-surface: #FFFFFF;
  --text-main: #172033;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --border-color: #E2E8F0;
  --border-focus: #2469D8;
  --success: #15803D;
  --success-bg: #DCFCE7;
  --warning: #D97706;
  --warning-bg: #FEF3C7;
  --danger: #DC2626;
  --danger-bg: #FEE2E2;
  --info: #0284C7;
  --info-bg: #E0F2FE;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--canvas-bg);
  color: var(--text-main);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

a:hover {
  color: var(--primary-blue-hover);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

h1 { font-size: 2.15rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.main-content {
  flex: 1 0 auto;
}

/* ==========================================================================
   Public Header / Topbar Navigation
   ========================================================================== */
.site-header {
  background-color: var(--card-surface);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.top-announcement {
  background-color: var(--dark-navy);
  color: #E2E8F0;
  font-size: 0.8rem;
  padding: 0.4rem 0;
}

.top-announcement-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-links a {
  color: #CBD5E1;
  margin-left: 1rem;
  font-size: 0.8rem;
}
.top-links a:hover {
  color: #FFFFFF;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--dark-navy);
  text-decoration: none;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary-blue), #1D52B0);
  color: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  box-shadow: 0 4px 10px rgba(36, 105, 216, 0.3);
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  color: var(--text-main);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

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

/* ==========================================================================
   Public Footer
   ========================================================================== */
.site-footer {
  background-color: var(--dark-navy);
  color: #94A3B8;
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  color: #FFFFFF;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  color: #94A3B8;
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1rem;
  margin-bottom: 1.25rem;
  font-weight: 600;
}

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

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

.footer-links a {
  color: #94A3B8;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}