/**
 * Amul Vendor & Supplier Registration Portal - Modern Corporate Design System
 * Kaira District Co-Operative Milk Producers' Union Ltd., Anand
 * Optimized for Mobile, Tablet, and Desktop (True Responsive)
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  /* Brand Colors */
  --amul-red: #C41230;
  --amul-red-hover: #A00E26;
  --amul-red-dark: #7F0B1E;
  --amul-red-light: #FEE2E2;
  --amul-red-soft: #FFF1F2;
  
  /* Neutral & Slate Palette */
  --navy-900: #0F172A;
  --navy-800: #1E293B;
  --navy-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50: #F8FAFC;
  --pure-white: #FFFFFF;

  /* Accent & Functional */
  --blue-600: #0284C7;
  --blue-50: #F0F9FF;
  --emerald-600: #059669;
  --emerald-50: #ECFDF5;
  --amber-600: #D97706;
  --amber-50: #FFFBEB;
  --rose-600: #E11D48;
  --rose-50: #FFF1F2;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 4px 0 rgba(15, 23, 42, 0.06);
  --shadow-md: 0 6px 12px -2px rgba(15, 23, 42, 0.08), 0 3px 6px -3px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.1), 0 4px 8px -2px rgba(15, 23, 42, 0.06);
  --shadow-xl: 0 20px 30px -6px rgba(15, 23, 42, 0.12), 0 8px 12px -4px rgba(15, 23, 42, 0.06);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* Global Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family) !important;
  background: linear-gradient(180deg, #F8FAFC 0%, #F1F5F9 100%) !important;
  color: var(--navy-800) !important;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Responsive Portal Layout */
.portal-container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem 1rem;
}

.portal-container.portal-compact {
  max-width: 640px;
}

/* Brand Header */
.portal-header {
  background: var(--pure-white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}

.portal-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--amul-red) 0%, #E11D48 50%, #F59E0B 100%);
}

.portal-header-content {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand-logo-container {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 4px;
}

.brand-logo-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
}

.brand-titles {
  flex: 1;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  background: var(--amul-red-soft);
  color: var(--amul-red);
  border: 1px solid var(--amul-red-light);
  border-radius: 9999px;
  margin-bottom: 0.4rem;
}

.brand-org-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--navy-900);
  margin: 0 0 0.25rem 0;
  line-height: 1.3;
}

.brand-portal-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--slate-600);
  margin: 0;
}

/* Steps Timeline */
.timeline-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  background: var(--pure-white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-xs);
  position: relative;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  position: relative;
  z-index: 1;
}

.step-indicator {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--slate-100);
  color: var(--slate-500);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--slate-300);
  transition: all 0.2s ease;
}

.step-item.active .step-indicator {
  background: var(--amul-red);
  color: var(--pure-white);
  border-color: var(--amul-red);
  box-shadow: 0 0 0 4px var(--amul-red-light);
}

.step-item.completed .step-indicator {
  background: var(--emerald-600);
  color: var(--pure-white);
  border-color: var(--emerald-600);
}

.step-label {
  display: flex;
  flex-direction: column;
}

.step-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy-800);
}

.step-desc {
  font-size: 0.72rem;
  color: var(--slate-500);
}

.step-divider {
  flex: 1;
  height: 2px;
  background: var(--slate-200);
  margin: 0 0.75rem;
}

/* Section Cards */
.form-section-card {
  background: var(--pure-white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-section-card:hover {
  border-color: var(--slate-300);
  box-shadow: var(--shadow-md);
}

.section-card-header {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--slate-200);
  background: var(--slate-50);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.section-header-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.section-badge {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--pure-white);
  border: 1px solid var(--slate-200);
  color: var(--amul-red);
  font-size: 0.85rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

.section-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-900);
  margin: 0;
}

.section-subtitle {
  font-size: 0.8rem;
  color: var(--slate-500);
  margin: 0.15rem 0 0 0;
}

.section-card-body {
  padding: 1.5rem;
}

/* Form Controls & Inputs */
.form-group-item {
  margin-bottom: 1.25rem;
}

.form-label-custom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-700);
  margin-bottom: 0.4rem;
}

.form-label-custom .req-mark {
  color: var(--amul-red);
  font-weight: 700;
  margin-left: 0.25rem;
}

.form-label-subtext {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--slate-500);
}

.input-custom,
.select-custom,
.form-control {
  width: 100%;
  height: 46px;
  font-size: 0.95rem !important;
  font-family: var(--font-family) !important;
  color: var(--navy-900) !important;
  background-color: var(--pure-white) !important;
  border: 1.5px solid var(--slate-300) !important;
  border-radius: var(--radius-sm) !important;
  padding: 0.6rem 0.9rem !important;
  transition: all 0.2s ease-in-out !important;
  box-shadow: var(--shadow-xs) !important;
}

.input-custom:focus,
.select-custom:focus,
.form-control:focus {
  border-color: var(--amul-red) !important;
  outline: none !important;
  box-shadow: 0 0 0 3px rgba(196, 18, 48, 0.15) !important;
}

.input-custom::placeholder,
.form-control::placeholder {
  color: var(--slate-400) !important;
  font-size: 0.9rem !important;
}

.input-custom[readonly],
.form-control[readonly],
.input-custom[disabled],
.form-control[disabled] {
  background-color: var(--slate-100) !important;
  color: var(--slate-600) !important;
  border-color: var(--slate-200) !important;
  cursor: not-allowed;
  box-shadow: none !important;
}

/* Capitalize Utility */
.capitalize {
  text-transform: capitalize;
}

/* Responsive Form Grid System */
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem 1.25rem;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem 1.25rem;
}

.form-grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem 1.25rem;
}

@media (min-width: 640px) {
  .form-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .form-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .form-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.grid-col-span-2 {
  grid-column: 1 / -1;
}

/* Radio & Checkbox Cards */
.choice-cards-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 576px) {
  .choice-cards-group.grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .choice-cards-group.grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .choice-cards-group.grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .choice-cards-group.grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.choice-card-label {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  background: var(--slate-50);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy-800);
  margin-bottom: 0;
  user-select: none;
}

.choice-card-label:hover {
  background: var(--pure-white);
  border-color: var(--slate-400);
}

.choice-card-label input[type="radio"],
.choice-card-label input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--slate-400);
  border-radius: 50%;
  margin: 0;
  display: grid;
  place-content: center;
  transition: all 0.2s ease;
  cursor: pointer;
  flex-shrink: 0;
}

.choice-card-label input[type="checkbox"] {
  border-radius: 4px;
}

.choice-card-label input[type="radio"]::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  box-shadow: inset 1em 1em var(--amul-red);
}

.choice-card-label input[type="checkbox"]::before {
  content: "\2713";
  color: var(--pure-white);
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
  display: none;
}

.choice-card-label input[type="radio"]:checked,
.choice-card-label input[type="checkbox"]:checked {
  border-color: var(--amul-red);
  background-color: var(--pure-white);
}

.choice-card-label input[type="checkbox"]:checked {
  background-color: var(--amul-red);
}

.choice-card-label input[type="radio"]:checked::before {
  transform: scale(1);
}

.choice-card-label input[type="checkbox"]:checked::before {
  display: block;
}

.choice-card-label:has(input:checked) {
  background: var(--amul-red-soft);
  border-color: var(--amul-red);
  color: var(--amul-red-dark);
}

/* Document Upload Items */
.document-upload-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  align-items: center;
  transition: all 0.2s ease;
}

@media (min-width: 640px) {
  .document-upload-row {
    grid-template-columns: 1fr 1fr;
  }
}

.document-upload-row:hover {
  background: var(--pure-white);
  border-color: var(--slate-300);
  box-shadow: var(--shadow-xs);
}

.doc-info {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.doc-info-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-800);
}

.doc-badge-pdf {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--amul-red);
  background: var(--amul-red-soft);
  border: 1px solid var(--amul-red-light);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
  text-transform: uppercase;
}

.file-input-wrapper input[type="file"] {
  font-size: 0.85rem;
  color: var(--slate-600);
  width: 100%;
}

.file-input-wrapper input[type="file"]::file-selector-button {
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  background: var(--navy-800);
  color: var(--pure-white);
  border: none;
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.2s ease;
  margin-right: 0.75rem;
}

.file-input-wrapper input[type="file"]::file-selector-button:hover {
  background: var(--navy-900);
}

/* Action Buttons & CTA */
.form-actions-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--pure-white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.btn-amul-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 48px;
  min-width: 180px;
  padding: 0.75rem 2rem;
  background: linear-gradient(135deg, var(--amul-red) 0%, var(--amul-red-hover) 100%) !important;
  color: var(--pure-white) !important;
  font-family: var(--font-family) !important;
  font-size: 1rem !important;
  font-weight: 700 !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  cursor: pointer !important;
  box-shadow: 0 4px 12px rgba(196, 18, 48, 0.25) !important;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
  text-decoration: none !important;
}

.btn-amul-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--amul-red-hover) 0%, var(--amul-red-dark) 100%) !important;
  box-shadow: 0 6px 16px rgba(196, 18, 48, 0.35) !important;
  transform: translateY(-1px);
}

.btn-amul-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(196, 18, 48, 0.25) !important;
}

.btn-amul-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed !important;
}

.btn-amul-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  background: var(--slate-100) !important;
  color: var(--navy-800) !important;
  font-family: var(--font-family) !important;
  font-size: 0.95rem !important;
  font-weight: 600 !important;
  border: 1px solid var(--slate-300) !important;
  border-radius: var(--radius-md) !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
  text-decoration: none !important;
}

.btn-amul-secondary:hover {
  background: var(--slate-200) !important;
  color: var(--navy-900) !important;
}

.btn-amul-success {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 2rem;
  background: var(--emerald-600) !important;
  color: var(--pure-white) !important;
  font-weight: 700 !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  cursor: pointer !important;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25) !important;
  transition: all 0.2s ease !important;
}

.btn-amul-success:hover {
  background: #047857 !important;
  transform: translateY(-1px);
}

.btn-amul-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 2rem;
  background: var(--rose-600) !important;
  color: var(--pure-white) !important;
  font-weight: 700 !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  cursor: pointer !important;
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.25) !important;
  transition: all 0.2s ease !important;
}

.btn-amul-danger:hover {
  background: #BE123C !important;
  transform: translateY(-1px);
}

/* Alert Styling */
.alert-custom {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  line-height: 1.5;
  border: 1px solid transparent;
}

.alert-custom-info {
  background-color: var(--blue-50);
  border-color: #BAE6FD;
  color: #0369A1;
}

.alert-custom-danger {
  background-color: var(--rose-50);
  border-color: #FECDD3;
  color: #BE123C;
}

.alert-custom-success {
  background-color: var(--emerald-50);
  border-color: #A7F3D0;
  color: #047857;
}

.alert-custom-warning {
  background-color: var(--amber-50);
  border-color: #FDE68A;
  color: #B45309;
}

/* Error message styling */
label.error {
  color: var(--amul-red) !important;
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  margin-top: 0.35rem !important;
  display: block !important;
}

/* Footer Note */
.portal-footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--slate-200);
  color: var(--slate-500);
  font-size: 0.8rem;
}

.portal-footer a {
  color: var(--amul-red);
  text-decoration: none;
  font-weight: 600;
}

.portal-footer a:hover {
  text-decoration: underline;
}

/* Mobile Responsiveness Enhancements */
@media (max-width: 767px) {
  .portal-container {
    padding: 0.75rem 0.5rem 2rem 0.5rem;
  }

  .portal-header {
    padding: 1.25rem 1rem;
    margin-bottom: 1rem;
  }

  .portal-header-content {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }

  .brand-logo-container {
    width: 60px;
    height: 60px;
    margin: 0 auto;
  }

  .brand-org-name {
    font-size: 1.05rem;
  }

  .brand-portal-name {
    font-size: 0.85rem;
  }

  .timeline-stepper {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
  }

  .step-divider {
    display: none;
  }

  .section-card-header {
    padding: 1rem;
  }

  .section-card-body {
    padding: 1rem;
  }

  .form-actions-bar {
    flex-direction: column;
    padding: 1rem;
  }

  .btn-amul-primary,
  .btn-amul-secondary,
  .btn-amul-success,
  .btn-amul-danger {
    width: 100% !important;
  }
}

/* Touch targets optimization */
button, input, select, textarea, label {
  touch-action: manipulation;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--amul-red) !important;
  outline-offset: 2px !important;
}