/* ==========================================================================
   LiveBill.in - Modern Clean Design System (Obsidian Black & Plus Jakarta Sans)
   ========================================================================== */

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

:root {
  /* Brand Colors - Billing Portals Mix (Zoho Royal Blue, Vyapar Emerald Green, GoGST Amber) */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-glow: rgba(37, 99, 235, 0.16);
  
  --secondary: #e2e8f0;
  --secondary-hover: #cbd5e1;
  --secondary-light: #f8fafc;
  
  --accent: #0f172a;
  --accent-light: #f8fafc;

  /* Custom Color Combination (Red Soil, Soft Pink, Ultra-Lite Green, Lite Purple) */
  --color-red-soil: #8C5E45;
  --color-red-soil-hover: #734933;
  --color-red-soil-light: #FAF4F0;
  --color-pink-soft: #fdf2f8;
  --color-pink-border: #fce7f3;
  --color-pink-text: #db2777;
  --color-green-ultra-lite: #ecfdf5;
  --color-green-border: #a7f3d0;
  --color-green-accent: #059669;
  --color-purple-lite: #faf5ff;
  --color-purple-border: #ddd6fe;
  --color-purple-accent: #7c3aed;
  
  /* Vyapar Emerald Green for Collections, Paid Status & WhatsApp */
  --success: #16a34a;
  --success-hover: #15803d;
  --success-light: #f0fdf4;
  
  /* GoGSTBill Warm Amber for Quotations & Recurring Alerts */
  --warning: #d97706;
  --warning-light: #fffbeb;
  
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --danger-light: #fef2f2;
  
  /* Crisp Daylight White Palette - STRICTLY NO DARK BACKGROUNDS */
  --bg-main: #ffffff;
  --bg-surface: #ffffff;
  --bg-subtle: #f8fafc;
  --border-color: #e2e8f0;
  --border-focus: #2563eb;

  /* Text Colors - Deep Black / Slate for Maximum Daylight Contrast */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  
  /* Elevation & Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -4px rgba(0, 0, 0, 0.02);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  --shadow-glow: 0 0 20px var(--primary-glow);
  
  /* Multi-Typography System Feature-Wise:
     1. Corporate Gothics: Headlines, Store navigation, buttons, product branding
     2. Times New Roman: Statutory compliance, MCA Audit Trail, legal notes, official terms
     3. Geometric: Pricing, calculations, dates, numeric tables, metric cards */
  --font-corporate: 'Century Gothic', 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-times: 'Times New Roman', Times, 'Georgia', serif;
  --font-geometric: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: var(--font-corporate);
  --font-sans: var(--font-geometric);
  
  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: #000000;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* IMPORTANT: White font color strictly preserved on colored buttons */
.btn-primary {
  background: #2563eb !important;
  color: #ffffff !important;
  border: 1px solid #2563eb !important;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover {
  background: #1d4ed8 !important;
  color: #ffffff !important;
  border-color: #1d4ed8 !important;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--success);
  color: #ffffff !important;
  border: 1px solid var(--success);
  box-shadow: 0 2px 6px rgba(22, 163, 74, 0.25);
}
.btn-success:hover {
  background: var(--success-hover);
  color: #ffffff !important;
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--danger);
  color: #ffffff !important;
  border: 1px solid var(--danger);
}
.btn-danger:hover {
  background: var(--danger-hover);
  color: #ffffff !important;
}

.btn-whatsapp {
  background: #25D366;
  color: #ffffff !important;
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.25);
}
.btn-whatsapp:hover {
  background: #1eb956;
  color: #ffffff !important;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: #cbd5e1;
}

.btn-outline-primary {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline-primary:hover {
  background: #2563eb;
  color: #ffffff !important;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 13px 26px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

/* Badges - Modern Clean Font Weight */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 9px;
  font-size: 0.73rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-radius: var(--radius-full);
}

.badge-paid {
  background: var(--success-light);
  color: #166534;
  border: 1px solid #bbf7d0;
}
.badge-partial {
  background: #fffbeb;
  color: #92400e;
  border: 1px solid #fde68a;
}
.badge-unpaid {
  background: var(--danger-light);
  color: #991b1b;
  border: 1px solid #fecaca;
}
.badge-draft {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.badge-sent {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid var(--border-color);
}
.badge-converted {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}
.badge-primary {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}
.badge-dark {
  background: #0f172a;
  color: #ffffff !important;
}

/* Form Controls */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-control, .form-select {
  width: 100%;
  padding: 9px 13px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
}

.form-control:focus, .form-select:focus {
  border-color: #000000;
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.form-control-sm {
  padding: 6px 10px;
  font-size: 0.82rem;
}

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

/* Cards */
.card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-body {
  padding: 22px;
}

/* Modal System */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.65);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.modal-backdrop.active,
.modal-backdrop.open {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  display: flex !important;
}

.modal-container {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  max-width: 650px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  border: 1px solid #cbd5e1;
  transform: translateY(16px) scale(0.98);
  transition: transform 0.22s ease;
}

.modal-container.modal-lg {
  max-width: 950px;
}

.modal-backdrop.active .modal-container,
.modal-backdrop.open .modal-container {
  transform: translateY(0) scale(1) !important;
}

.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #0f172a;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}
.modal-close:hover {
  color: #000000;
}

.modal-body {
  padding: 22px;
}

.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: #ffffff;
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
}

/* Toast Notifications - White text on obsidian black */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 10000;
}

.toast {
  background: #000000;
  color: #ffffff !important;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideInToast 0.25s ease;
}

.toast-success { background: #14532d; color: #ffffff !important; border-left: 4px solid #22c55e; }
.toast-error { background: #7f1d1d; color: #ffffff !important; border-left: 4px solid #ef4444; }

/* Contextual Typography Classes */
.font-corporate { font-family: var(--font-corporate) !important; }
.font-times { font-family: var(--font-times) !important; }
.font-geometric { font-family: var(--font-geometric) !important; }

/* Custom Colors Combination Utilities */
.bg-red-soil { background-color: var(--color-red-soil) !important; color: #ffffff !important; }
.text-red-soil { color: var(--color-red-soil) !important; }
.border-red-soil { border-color: var(--color-red-soil) !important; }

.bg-pink-soft { background-color: var(--color-pink-soft) !important; }
.text-pink-soft { color: var(--color-pink-text) !important; }
.border-pink-soft { border-color: var(--color-pink-border) !important; }

.bg-green-ultra-lite { background-color: var(--color-green-ultra-lite) !important; }
.text-green-accent { color: var(--color-green-accent) !important; }
.border-green-ultra-lite { border-color: var(--color-green-border) !important; }

.bg-purple-lite { background-color: var(--color-purple-lite) !important; }
.text-purple-accent { color: var(--color-purple-accent) !important; }
.border-purple-lite { border-color: var(--color-purple-border) !important; }

@keyframes slideInToast {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}