/* ========================================
   BANKING APP - CENTRALIZED STYLES
   Change the --bank-900 variable below to 
   update the primary color across ALL pages
   ======================================== */

/* ===== THEME COLORS - EDIT THESE ===== */
:root {
    /* PRIMARY COLOR - Change this ONE value to update entire app */
    --bank-900: #007a4d;      /* Main brand color (green) - Change to red: #dc2626 */
    --bank-800: #1a573a;      /* Darker shade */
    --bank-700: #1e6b46;      /* Gradient end */
    --bank-600: #258556;      /* Hover state */
    --bank-500: #3fa36f;      /* Medium shade */
    --bank-400: #65bc8f;      /* Light medium */
    --bank-300: #98d3b5;      /* Light */
    --bank-200: #c4e6d5;      /* Lighter */
    --bank-100: #e0f3ea;      /* Very light */
    --bank-50:  #f0f9f5;      /* Background tint */
    
    /* ACCENT COLORS */
    --accent-gold: #f4c430;
    --accent-gold-light: #fff9e6;
    
    /* NEUTRALS */
    --gray-50:  #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* STATUS COLORS */
    --success: #10b981;
    --success-bg: #d1fae5;
    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --error: #ef4444;
    --error-bg: #fee2e2;
    --info: #3b82f6;
    --info-bg: #dbeafe;
    
    /* SHADOWS */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 122, 77, 0.08), 0 1px 2px rgba(0, 122, 77, 0.06);
    --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 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-card: 0 1px 3px rgba(0, 122, 77, 0.08), 0 1px 2px rgba(0, 122, 77, 0.06);
    --shadow-card-hover: 0 10px 25px rgba(0, 122, 77, 0.15);
    
    /* GRADIENTS */
   /* --gradient-header: linear-gradient(135deg, var(--bank-900) 0%, var(--bank-700) 100%); */
   --gradient-header: #153879;
    --gradient-card: linear-gradient(135deg, var(--bank-900) 0%, var(--bank-800) 100%);
    --gradient-gold: linear-gradient(135deg, var(--accent-gold) 0%, #d4a900 100%);
    
    /* BORDERS */
    --border-glow: 1px solid rgba(0, 122, 77, 0.15);
    --border-light: 1px solid var(--gray-200);
    --border-focus: 2px solid rgba(0, 122, 77, 0.2);
    
    /* TRANSITIONS */
    --transition-fast: 150ms ease-in-out;
    --transition: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
    
    /* BORDER RADIUS */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

/* ===== DARK MODE SUPPORT (Optional) ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --gray-50: #1f2937;
        --gray-100: #374151;
        --gray-200: #4b5563;
        --gray-800: #f3f4f6;
        --gray-900: #f9fafb;
    }
}

/* ===== BASE STYLES ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--bank-50) 0%, var(--gray-100) 100%);
    color: var(--gray-800);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--gray-900);
}

h1 { font-size: 1.875rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

p { color: var(--gray-600); }

.text-primary { color: var(--bank-900); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* ===== UTILITIES ===== */
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* ===== CARDS & CONTAINERS ===== */
.card {
    background: white;
    border-radius: var(--radius-xl);
    border: var(--border-glow);
    box-shadow: var(--shadow-card);
    transition: box-shadow var(--transition), transform var(--transition);
}

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

.card-shadow {
    box-shadow: var(--shadow-card);
}

.card-shadow-hover:hover {
    box-shadow: var(--shadow-card-hover);
}

/* ===== HEADERS ===== */
.gradient-header {
    background: var(--gradient-header);
}

.header-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 30;
    height: 4rem;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--bank-900);
    color: white;
}

.btn-primary:hover {
    background: var(--bank-800);
    box-shadow: 0 4px 12px rgba(0, 122, 77, 0.3);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: white;
    color: var(--bank-900);
    border: 1px solid var(--bank-200);
}

.btn-secondary:hover {
    background: var(--bank-50);
    border-color: var(--bank-300);
}

.btn-outline {
    background: transparent;
    color: var(--bank-900);
    border: 2px solid var(--bank-900);
}

.btn-outline:hover {
    background: var(--bank-900);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ===== INPUTS & FORMS ===== */
.input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    background: white;
    color: var(--gray-800);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.input:focus {
    outline: none;
    border-color: var(--bank-900);
    box-shadow: var(--border-focus);
}

.input::placeholder {
    color: var(--gray-400);
}

.input-error {
    border-color: var(--error);
}

.input-error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.input-success {
    border-color: var(--success);
}

.input-success:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.25rem;
}

.select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    background: white;
    color: var(--gray-800);
    cursor: pointer;
    transition: border-color var(--transition);
}

.select:focus {
    outline: none;
    border-color: var(--bank-900);
    box-shadow: var(--border-focus);
}

/* ===== BADGES & TAGS ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-error {
    background: var(--error-bg);
    color: var(--error);
}

.badge-info {
    background: var(--info-bg);
    color: var(--info);
}

.badge-primary {
    background: var(--bank-100);
    color: var(--bank-900);
}

/* ===== PROGRESS BARS ===== */
.progress {
    width: 100%;
    height: 0.5rem;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--bank-900);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.success { background: var(--success); }
.progress-bar.warning { background: var(--warning); }
.progress-bar.error { background: var(--error); }

/* ===== TOGGLES & SWITCHES ===== */
.toggle {
    position: relative;
    display: inline-block;
    width: 2.75rem;
    height: 1.5rem;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gray-300);
    border-radius: var(--radius-full);
    transition: background var(--transition);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 1.25rem;
    width: 1.25rem;
    left: 0.125rem;
    bottom: 0.125rem;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

input:checked + .toggle-slider {
    background: var(--bank-900);
}

input:checked + .toggle-slider:before {
    transform: translateX(1.25rem);
}

/* ===== MODALS ===== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    max-width: 28rem;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    opacity: 0;
    transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.modal-backdrop.active .modal {
    transform: scale(1);
    opacity: 1;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: var(--border-light);
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius);
    transition: background var(--transition);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

/* ===== TOASTS & NOTIFICATIONS ===== */
.toast {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--bank-900);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 100;
    animation: slideIn 0.3s ease-out;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }
.toast.warning { border-left-color: var(--warning); }

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

/* ===== LOADING SPINNER ===== */
.spinner {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--gray-200);
    border-top-color: var(--bank-900);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

.no-scrollbar::-webkit-scrollbar {
    display: none;
}

.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* ===== ANIMATIONS ===== */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-up {
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ===== RESPONSIVE UTILITIES ===== */
@media (max-width: 768px) {
    .hidden-mobile { display: none; }
    .text-center-mobile { text-align: center; }
    .flex-col-mobile { flex-direction: column; }
}

@media (min-width: 769px) {
    .hidden-desktop { display: none; }
}

/* ===== PRINT STYLES ===== */
@media print {
    .no-print { display: none !important; }
    body { background: white; }
    .card { box-shadow: none; border: 1px solid #ccc; }
}

/* ===== 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;
}

:focus-visible {
    outline: 2px solid var(--bank-900);
    outline-offset: 2px;
}

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--bank-900);
    color: white;
    padding: 0.5rem 1rem;
    z-index: 100;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

/* ===== COLOR THEME QUICK CHANGE GUIDE ===== */
/* 
   To change the main color from green to red:
   
   1. Find this line in :root above:
      --bank-900: #007a4d;
   
   2. Change it to red:
      --bank-900: #dc2626;
   
   3. Optionally update related shades:
      --bank-800: #b91c1c;
      --bank-700: #991b1b;
      --bank-600: #dc2626;
      --bank-500: #ef4444;
      --bank-400: #f87171;
      --bank-300: #fca5a5;
      --bank-200: #fecaca;
      --bank-100: #fee2e2;
      --bank-50:  #fef2f2;
   
   4. Update gradient if needed:
      --gradient-header: linear-gradient(135deg, var(--bank-900) 0%, var(--bank-700) 100%);
   
   That's it! All pages using this CSS will automatically update.
*/