/* ═══════════════════════════════════════════════════════════════════════════
   IFSC Search v2.0 — Design System
   Built on Bootstrap 5.3 · Material-inspired · Mobile-first · Accessible
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────────────────── */
html {
  overflow-y: scroll;
}

:root {
  /* Primary palette — Material Blue 600 for contrast, brand pink as accent */
  --primary: #1a73e8;
  --primary-hover: #1557b0;
  --primary-light: #e8f0fe;
  --primary-surface: #f0f6ff;

  /* Brand accent (legacy pink — preserved in gradients & accents) */
  --accent: #F4ACFE;
  --accent-hover: #e59be8;
  --accent-light: #fdf0ff;

  /* Neutrals */
  --text-primary: #1f1f1f;
  --text-secondary: #5f6368;
  --text-tertiary: #80868b;
  --surface: #ffffff;
  --surface-dim: #f8f9fa;
  --surface-container: #f1f3f4;
  --border: #dadce0;
  --border-light: #e8eaed;

  /* Semantic */
  --success: #1e8e3e;
  --success-light: #e6f4ea;
  --warning: #f9ab00;
  --warning-light: #fef7e0;
  --danger: #d93025;
  --danger-light: #fce8e6;

  /* Elevation (Material Design 3 shadows) */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.06);
  --shadow-md: 0 2px 6px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1), 0 8px 24px rgba(0,0,0,0.08);

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --radius-full: 50rem;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Base ──────────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text-primary);
  background-color: var(--surface-dim);
  line-height: 1.6;
  letter-spacing: -0.011em;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* ── Accessibility: Skip to Content ────────────────────────────────────── */
.skip-to-content {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  z-index: 9999;
  padding: var(--space-sm) var(--space-md);
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  text-decoration: none;
}

.skip-to-content:focus {
  left: var(--space-md);
  top: 0;
  width: auto;
  height: auto;
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ── Focus Visible (global) ────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ── Bootstrap Primary Overrides ───────────────────────────────────────── */
.text-primary { color: var(--primary) !important; }
.bg-primary  { background-color: var(--primary) !important; }
.border-primary { border-color: var(--primary) !important; }

.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-xs);
}

.btn-outline-primary {
  color: var(--primary);
  border-color: var(--primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.btn-outline-primary:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-outline-secondary {
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.btn-outline-secondary:hover {
  transform: translateY(-1px);
}

/* ── Navbar ─────────────────────────────────────────────────────────────── */
.navbar {
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  background-color: rgba(255, 255, 255, 0.92) !important;
  border-bottom: 1px solid var(--border-light) !important;
  transition: box-shadow var(--transition-normal);
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar-brand {
  font-size: 1.25rem !important;
  gap: 0.5rem;
}

.navbar-brand .bi-bank {
  color: var(--primary) !important;
  font-size: 1.3rem;
}

.nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.85rem !important;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--primary) !important;
  background-color: var(--primary-light);
}

.nav-link.active,
.nav-link[aria-current="page"] {
  color: var(--primary) !important;
  font-weight: 600;
}

.navbar-toggler {
  border: none;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.navbar-toggler:hover {
  background-color: var(--surface-container);
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* ── Hero Section ──────────────────────────────────────────────────────── */
.hero-section {
  background: linear-gradient(135deg, var(--primary-surface) 0%, var(--accent-light) 50%, var(--surface-dim) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(244,172,254,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-section .display-4 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary) 0%, #1a237e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-section .lead {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Search Bar ────────────────────────────────────────────────────────── */
.search-container .input-group {
  border: 2px solid var(--border);
  border-radius: var(--radius-full) !important;
  background: var(--surface);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.search-container .input-group:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.15);
}

.search-container .input-group-text {
  background: transparent;
  border: none;
  padding-left: 1.25rem;
  color: var(--text-tertiary);
}

.search-container .form-control {
  border: none;
  box-shadow: none !important;
  font-size: 1rem;
  padding: 0.8rem 0.5rem;
  color: var(--text-primary);
  background: transparent;
}

.search-container .form-control-lg {
  padding: 1rem 0.5rem;
  font-size: 1.1rem;
}

.search-container .form-control::placeholder {
  color: var(--text-tertiary);
}

.search-container .btn-primary {
  border-radius: 0 var(--radius-full) var(--radius-full) 0 !important;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  font-size: 0.95rem;
}

/* Search clear button */
.search-clear-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 1.2rem;
  padding: 0 0.75rem;
  cursor: pointer;
  display: none;
  align-items: center;
  transition: color var(--transition-fast);
}

.search-clear-btn:hover {
  color: var(--text-primary);
}

.search-clear-btn.visible {
  display: flex;
}

/* ── Stat Cards ────────────────────────────────────────────────────────── */
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

.stat-card:hover::before {
  opacity: 1;
}

.stat-card .h2,
.stat-card .h3 {
  font-weight: 700;
  letter-spacing: -0.03em;
}

/* ── Cards & Hover Lift ────────────────────────────────────────────────── */
.card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.hover-lift {
  transition: all var(--transition-normal);
}

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

.hover-lift:active {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Grid cards (bank/state/district) */
.card-body.text-center.p-3 {
  border-radius: var(--radius-md);
}

/* Branch detail card */
.card.shadow-sm {
  box-shadow: var(--shadow-sm);
}

/* Info card (IFSC explanation, branch about) */
.card.bg-light {
  background: var(--surface-container) !important;
  border: 1px solid var(--border-light);
}

/* ── Tables ─────────────────────────────────────────────────────────────── */
.table {
  font-size: 0.925rem;
  border-color: var(--border-light);
  margin-bottom: 0;
}

.table thead th {
  background: var(--surface-container);
  border-bottom: 2px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  padding: 0.75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.table-light {
  --bs-table-bg: var(--surface-container);
}

.table tbody th,
.table tbody td {
  padding: 0.75rem 1rem;
  vertical-align: middle;
  border-color: var(--border-light);
  font-weight: normal;
}

.table-hover tbody tr {
  transition: background-color var(--transition-fast);
}

.table-hover tbody tr:hover {
  background-color: var(--primary-light) !important;
}

.table-responsive {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
}

/* ── Badges ─────────────────────────────────────────────────────────────── */
.badge.bg-success {
  background-color: var(--success-light) !important;
  color: var(--success) !important;
  font-weight: 600;
  font-size: 0.78rem;
  padding: 0.35em 0.7em;
  border: 1px solid rgba(30,142,62,0.2);
}

.badge.bg-danger {
  background-color: var(--danger-light) !important;
  color: var(--danger) !important;
  font-weight: 600;
  font-size: 0.78rem;
  padding: 0.35em 0.7em;
  border: 1px solid rgba(217,48,37,0.2);
}

.badge.bg-light {
  background-color: var(--surface-container) !important;
  color: var(--text-secondary) !important;
  border: 1px solid var(--border);
}

/* ── Breadcrumbs ───────────────────────────────────────────────────────── */
.breadcrumb {
  font-size: 0.85rem;
  margin-bottom: 0;
}

.breadcrumb-item a {
  color: var(--primary);
  font-weight: 500;
}

.breadcrumb-item a:hover {
  color: var(--primary-hover);
}

.breadcrumb-item.active {
  color: var(--text-secondary);
  font-weight: 500;
}

nav[aria-label="breadcrumb"] {
  background: var(--surface) !important;
  border-bottom: 1px solid var(--border-light) !important;
}

/* ── FAQ Accordion ─────────────────────────────────────────────────────── */
.accordion {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-color: var(--border-light);
}

.accordion-button {
  font-size: 0.95rem;
  padding: 1rem 1.25rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.accordion-button:not(.collapsed) {
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  box-shadow: none;
}

.accordion-button::after {
  transition: transform var(--transition-normal);
}

.accordion-button:focus {
  box-shadow: none;
  border-color: var(--border);
}

.accordion-body {
  color: var(--text-secondary);
  line-height: 1.7;
  padding: 1rem 1.25rem 1.25rem;
}

/* ── Footer ────────────────────────────────────────────────────────────── */
footer.bg-dark {
  background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%) !important;
}

footer h5 {
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

footer .text-muted {
  color: rgba(255,255,255,0.55) !important;
  font-size: 0.875rem;
  line-height: 1.6;
  transition: color var(--transition-fast);
}

footer a.text-muted:hover {
  color: var(--accent) !important;
}

footer .border-secondary {
  border-color: rgba(255,255,255,0.1) !important;
}

/* ── Alerts ─────────────────────────────────────────────────────────────── */
.alert-warning {
  background-color: var(--warning-light);
  border-color: rgba(249,171,0,0.3);
  color: #7c4a03;
  border-radius: var(--radius-md);
}

/* ── Ad Slots ──────────────────────────────────────────────────────────── */
.ad-slot {
  min-height: 90px;
  border: 1px dashed var(--border) !important;
  border-radius: var(--radius-md);
  background: var(--surface-container) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

/* ── Toast Notifications ───────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
}

.toast-notification {
  background: var(--text-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toastIn var(--transition-normal) ease-out forwards;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.toast-notification .bi {
  color: var(--success);
  font-size: 1.1rem;
}

.toast-notification.fade-out {
  animation: toastOut var(--transition-normal) ease-in forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(-8px) scale(0.96); }
}

/* ── Scroll to Top ─────────────────────────────────────────────────────── */
.scroll-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-normal);
  z-index: 1000;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  background: var(--primary-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ── Page entrance animation ───────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

main > section:first-of-type,
main > nav + section {
  animation: fadeInUp 0.4s ease-out;
}

/* ── Font Monospace (IFSC codes) ───────────────────────────────────────── */
.font-monospace {
  font-family: 'SF Mono', 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  letter-spacing: 0.05em;
}

/* ── Utility: max-width for search ─────────────────────────────────────── */
.max-w-lg {
  max-width: 680px;
}

/* ── Inactive branch overlay ───────────────────────────────────────────── */
tr:has(.badge.bg-danger) {
  opacity: 0.7;
}

tr:has(.badge.bg-danger):hover {
  opacity: 1;
}

/* ── Mobile Responsive ─────────────────────────────────────────────────── */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--surface);
    border-radius: var(--radius-lg);
    margin-top: var(--space-sm);
    padding: var(--space-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
  }

  .navbar-nav .nav-link {
    padding: 0.65rem 1rem !important;
    border-radius: var(--radius-md);
  }

  .navbar-nav .nav-link:hover {
    background-color: var(--surface-container);
  }
}

@media (max-width: 767.98px) {
  body {
    font-size: 0.9375rem;
  }

  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  /* Hero responsive */
  .hero-section .display-4 {
    font-size: 1.6rem;
  }

  .hero-section .lead {
    font-size: 0.9rem;
  }

  /* Stat cards: 2 columns always */
  .stat-card {
    padding: var(--space-md);
  }

  .stat-card .h2,
  .stat-card .h3 {
    font-size: 1.4rem !important;
  }

  /* Table: compact on mobile */
  .table {
    font-size: 0.85rem;
  }

  .table thead th {
    font-size: 0.72rem;
    padding: 0.5rem 0.6rem;
  }

  .table tbody td {
    padding: 0.5rem 0.6rem;
  }

  /* Branch detail: stack IFSC display */
  .d-flex.align-items-center.flex-wrap {
    gap: 0.5rem;
  }

  /* Breadcrumbs smaller */
  .breadcrumb {
    font-size: 0.78rem;
  }

  /* Footer columns */
  footer .row > div {
    margin-bottom: 1.5rem;
  }

  /* Toast position */
  .toast-container {
    left: var(--space-md);
    right: var(--space-md);
    bottom: var(--space-md);
  }

  .scroll-to-top {
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 575.98px) {
  .hero-section .container {
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
  }

  /* Search compact on very small screens */
  .search-container .btn-primary {
    padding-left: 1rem;
    padding-right: 1rem;
    font-size: 0.85rem;
  }

  .search-container .form-control-lg {
    font-size: 0.95rem;
    padding: 0.75rem 0.4rem;
  }
}

/* ── Button Micro-Interactions & Animations ───────────────────────────────── */
.btn {
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: scale(0.96) translateY(0) !important;
}

.btn-copied-anim {
  animation: popSuccess 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popSuccess {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

/* ── Animated Error Icons & Accessibility ──────────────────────────────────── */
.err-pulse-ring {
  animation: pulseRing 3s ease-out infinite;
  transform-origin: center;
}

@keyframes pulseRing {
  0% { transform: scale(0.9); opacity: 0.5; }
  50% { transform: scale(1.08); opacity: 0.15; }
  100% { transform: scale(0.9); opacity: 0.5; }
}

.err-glass-group {
  animation: glassFloat 4s ease-in-out infinite;
  transform-origin: 52px 52px;
}

@keyframes glassFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-3px) rotate(2deg); }
}

.err-gear {
  animation: gearSpin 8s linear infinite;
  transform-origin: 60px 42px;
}

@keyframes gearSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.err-needle {
  animation: needleSwing 2.5s ease-in-out infinite;
  transform-origin: 60px 60px;
}

@keyframes needleSwing {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(-15deg); }
}

.err-led-1 { animation: ledBlink 1.2s infinite; }
.err-led-3 { animation: ledBlink 1.8s infinite 0.4s; }

@keyframes ledBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Reduced motion accessibility */
@media (prefers-reduced-motion: reduce) {
  .err-pulse-ring,
  .err-glass-group,
  .err-gear,
  .err-needle,
  .err-led-1,
  .err-led-3,
  .btn-copied-anim {
    animation: none !important;
    transition: none !important;
  }
}



/* ── Print ──────────────────────────────────────────────────────────────── */
@media print {
  .navbar, footer, .ad-slot, .breadcrumb, .scroll-to-top, .toast-container {
    display: none !important;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}