/* Global CSS - Company Phone Directory System */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Colors - Primary Palette */
    --primary: #1a1d2e;
    --primary-light: #2a2d3e;
    --secondary: #4a90e2;
    --secondary-dark: #3a7bc8;
    --secondary-light: #6ba3e8;
    
    /* Semantic Colors */
    --success: #28a745;
    --success-dark: #218838;
    --success-light: #d4edda;
    --error: #dc3545;
    --error-dark: #c82333;
    --error-light: #f8d7da;
    --warning: #ffc107;
    --warning-dark: #e0a800;
    --warning-light: #fff3cd;
    --info: #17a2b8;
    --info-dark: #138496;
    --info-light: #d1ecf1;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f5f7fa;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Text Colors */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-light: #cccccc;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f7fa;
    --bg-tertiary: #e5e7eb;
    
    /* Border Colors */
    --border-color: #d1d5db;
    --border-light: #e5e7eb;
    --border-dark: #9ca3af;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: all 0.15s ease;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Typography */
    --font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-2xl);
}

h2 {
    font-size: var(--font-size-xl);
}

h3 {
    font-size: var(--font-size-lg);
}

h4, h5, h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--secondary-dark);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 10px 20px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--radius);
    transition: var(--transition-fast);
    outline: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Variants */
.btn-primary {
    color: var(--white);
    background-color: var(--secondary);
    border-color: var(--secondary);
}

.btn-primary:hover {
    background-color: var(--secondary-dark);
    border-color: var(--secondary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

.btn-secondary {
    color: var(--text-primary);
    background-color: var(--gray-200);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background-color: var(--gray-300);
    border-color: var(--gray-400);
}

.btn-secondary:focus {
    outline: 2px solid var(--gray-400);
    outline-offset: 2px;
}

.btn-success {
    color: var(--white);
    background-color: var(--success);
    border-color: var(--success);
}

.btn-success:hover {
    background-color: var(--success-dark);
    border-color: var(--success-dark);
}

.btn-success:focus {
    outline: 2px solid var(--success);
    outline-offset: 2px;
}

.btn-error,
.btn-danger {
    color: var(--white);
    background-color: var(--error);
    border-color: var(--error);
}

.btn-error:hover,
.btn-danger:hover {
    background-color: var(--error-dark);
    border-color: var(--error-dark);
}

.btn-error:focus,
.btn-danger:focus {
    outline: 2px solid var(--error);
    outline-offset: 2px;
}

.btn-warning {
    color: var(--text-primary);
    background-color: var(--warning);
    border-color: var(--warning);
}

.btn-warning:hover {
    background-color: var(--warning-dark);
    border-color: var(--warning-dark);
}

.btn-warning:focus {
    outline: 2px solid var(--warning);
    outline-offset: 2px;
}

.btn-outline {
    color: var(--secondary);
    background-color: transparent;
    border-color: var(--secondary);
}

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

.btn-outline:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* Button Sizes */
.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 12px 24px;
    font-size: var(--font-size-base);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ============================================
   FORM INPUTS
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.form-label.required::after {
    content: ' *';
    color: var(--error);
}

.form-control,
.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="search"],
textarea,
select {
    display: block;
    width: 100%;
    padding: 10px 12px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--white);
    background-clip: padding-box;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    outline: none;
}

.form-control:hover,
.form-input:hover,
input:hover,
textarea:hover,
select:hover {
    border-color: var(--border-dark);
}

.form-control:focus,
.form-input:focus,
input:focus,
textarea:focus,
select:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
    outline: 2px solid var(--secondary);
    outline-offset: -1px;
}

.form-control:disabled,
.form-input:disabled,
input:disabled,
textarea:disabled,
select:disabled {
    background-color: var(--gray-100);
    opacity: 0.6;
    cursor: not-allowed;
}

.form-control.is-invalid,
.form-input.is-invalid {
    border-color: var(--error);
}

.form-control.is-invalid:focus,
.form-input.is-invalid:focus {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
    outline-color: var(--error);
}

.form-control.is-valid,
.form-input.is-valid {
    border-color: var(--success);
}

.form-control.is-valid:focus,
.form-input.is-valid:focus {
    border-color: var(--success);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
    outline-color: var(--success);
}

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

select {
    cursor: pointer;
}

/* Form Feedback */
.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.invalid-feedback {
    display: none;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--error);
}

.form-control.is-invalid ~ .invalid-feedback,
.form-input.is-invalid ~ .invalid-feedback {
    display: block;
}

.valid-feedback {
    display: none;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--success);
}

.form-control.is-valid ~ .valid-feedback,
.form-input.is-valid ~ .valid-feedback {
    display: block;
}

/* Checkbox & Radio */
input[type="checkbox"],
input[type="radio"] {
    width: auto;
    margin-right: var(--spacing-xs);
    cursor: pointer;
}

input[type="checkbox"]:focus,
input[type="radio"]:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* ============================================
   TABLES
   ============================================ */
.table {
    width: 100%;
    margin-bottom: var(--spacing-lg);
    background-color: var(--white);
    border-collapse: collapse;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead {
    background-color: var(--gray-100);
}

.table th {
    padding: 12px 16px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-align: left;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: 12px 16px;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-light);
}

/* Striped Rows */
.table-striped tbody tr:nth-child(odd) {
    background-color: var(--gray-50);
}

.table-striped tbody tr:nth-child(even) {
    background-color: var(--white);
}

/* Hover Effect */
.table-hover tbody tr {
    transition: var(--transition-fast);
    cursor: pointer;
}

.table-hover tbody tr:hover {
    background-color: var(--secondary-light);
    background-color: rgba(74, 144, 226, 0.08);
}

/* Bordered Table */
.table-bordered {
    border: 1px solid var(--border-color);
}

.table-bordered th,
.table-bordered td {
    border: 1px solid var(--border-light);
}

/* Responsive Table */
.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ============================================
   MODALS
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1050;
    overflow: hidden;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

/* Modal Backdrop */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1040;
    animation: fadeIn 0.3s ease;
}

/* Modal Dialog */
.modal-dialog {
    position: relative;
    width: 90%;
    max-width: 500px;
    margin: auto;
    z-index: 1050;
    animation: slideDown 0.3s ease;
}

.modal-dialog-lg {
    max-width: 800px;
}

.modal-dialog-sm {
    max-width: 420px;
}

/* Modal Content */
.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    outline: 0;
}

/* Modal Header */
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.modal-title {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

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

.modal-close:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* Modal Body */
.modal-body {
    position: relative;
    flex: 1 1 auto;
    padding: var(--spacing-lg);
}

/* Modal Footer */
.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

/* Modal Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition-fast);
}

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

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--border-light);
}

.card-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--gray-50);
    border-top: 1px solid var(--border-light);
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
    position: relative;
    padding: 12px 16px;
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
}

.alert-success {
    color: #155724;
    background-color: var(--success-light);
    border-color: var(--success);
}

.alert-error,
.alert-danger {
    color: #721c24;
    background-color: var(--error-light);
    border-color: var(--error);
}

.alert-warning {
    color: #856404;
    background-color: var(--warning-light);
    border-color: var(--warning);
}

.alert-info {
    color: #0c5460;
    background-color: var(--info-light);
    border-color: var(--info);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-block;
    padding: 4px 8px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--radius-sm);
}

.badge-primary {
    color: var(--white);
    background-color: var(--secondary);
}

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

.badge-error,
.badge-danger {
    color: var(--white);
    background-color: var(--error);
}

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

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

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

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

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text Colors */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

/* Background Colors */
.bg-primary { background-color: var(--primary); }
.bg-secondary { background-color: var(--secondary); }
.bg-success { background-color: var(--success); }
.bg-error { background-color: var(--error); }
.bg-warning { background-color: var(--warning); }
.bg-white { background-color: var(--white); }
.bg-gray { background-color: var(--gray-100); }

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.align-start { align-items: flex-start; }
.align-center { align-items: center; }
.align-end { align-items: flex-end; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Spacing */
.m-0 { margin: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }

/* Width */
.w-100 { width: 100%; }
.w-auto { width: auto; }

/* ============================================
   ACCESSIBILITY - WCAG AA COMPLIANCE
   ============================================ */

/* Focus Indicators for Keyboard Navigation */
*:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* Skip to Main Content Link */
.skip-to-main {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--secondary);
    color: var(--white);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 9999;
    border-radius: var(--radius-sm);
}

.skip-to-main:focus {
    top: 0;
}

/* Screen Reader Only */
.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;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-primary: #000000;
    }
    
    .btn {
        border-width: 2px;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
    
    .modal-dialog {
        width: 95%;
        margin: var(--spacing-md);
    }
    
    .table-responsive {
        font-size: var(--font-size-xs);
    }
}

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

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 400px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: 12px 16px;
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--secondary);
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
    pointer-events: auto;
    min-width: 300px;
    max-width: 400px;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast.hide {
    opacity: 0;
    transform: translateX(400px);
}

.toast-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-message {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    word-wrap: break-word;
}

.toast-close {
    flex-shrink: 0;
    background: none;
    border: none;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-fast);
    border-radius: var(--radius-sm);
}

.toast-close:hover {
    color: var(--text-primary);
    background-color: var(--gray-100);
}

.toast-close:focus {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* Toast Types */
.toast-success {
    border-left-color: var(--success);
}

.toast-success .toast-icon {
    color: var(--success);
}

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

.toast-error .toast-icon {
    color: var(--error);
}

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

.toast-warning .toast-icon {
    color: var(--warning);
}

.toast-info {
    border-left-color: var(--info);
}

.toast-info .toast-icon {
    color: var(--info);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .toast {
        min-width: auto;
        max-width: none;
    }
}

/* ============================================
   LOADING OVERLAY
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    animation: fadeIn 0.3s ease;
}

.loading-overlay-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.loading-overlay-content p {
    margin: 0;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   LOADING STATES
   ============================================ */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    text-align: center;
}

.loading-state p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Button Loading State */
.btn-loading {
    position: relative;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================
   ERROR STATES
   ============================================ */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    text-align: center;
}

.error-state i {
    font-size: 48px;
    color: var(--error);
}

.error-state p {
    margin: 0;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.error-state .error-message {
    color: var(--error);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   EMPTY STATES
   ============================================ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    text-align: center;
}

.empty-state i {
    font-size: 48px;
    color: var(--text-muted);
}

.empty-state p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ============================================
   VALIDATION STYLES ENHANCEMENT
   ============================================ */
.form-control.is-invalid,
.form-input.is-invalid,
input.is-invalid,
textarea.is-invalid,
select.is-invalid {
    border-color: var(--error);
    padding-right: 36px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23dc3545' viewBox='0 0 16 16'%3E%3Cpath d='M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM8 4a.905.905 0 0 0-.9.995l.35 3.507a.552.552 0 0 0 1.1 0l.35-3.507A.905.905 0 0 0 8 4zm.002 6a1 1 0 1 0 0 2 1 1 0 0 0 0-2z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 16px;
}

.form-control.is-valid,
.form-input.is-valid,
input.is-valid,
textarea.is-valid,
select.is-valid {
    border-color: var(--success);
    padding-right: 36px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2328a745' viewBox='0 0 16 16'%3E%3Cpath d='M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.06L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 16px;
}

/* Invalid feedback enhancement */
.invalid-feedback {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--error);
    font-weight: var(--font-weight-medium);
}

.invalid-feedback::before {
    content: '⚠ ';
}

/* Valid feedback enhancement */
.valid-feedback {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--success);
    font-weight: var(--font-weight-medium);
}

.valid-feedback::before {
    content: '✓ ';
}