/**
 * MobiFirms - Professional File Management System
 * Custom CSS Styles
 */

/* ==========================================================================
   Variables and Root Styles
   ========================================================================== */

:root {
    /* Color Palette */
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #212529;
    
    /* Text Colors */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #868e96;
    --text-light: #ffffff;
    
    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    
    /* Shadows */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    
    /* Border Radius */
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 1rem;
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.5;
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.header-main {
    position: sticky;
    top: 0;
    z-index: 1030;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    text-decoration: none;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
}

.navbar-brand:hover {
    transform: scale(1.02);
    filter: brightness(1.1);
}

/* Professional Logo Styles */
.brand-logo-professional {
    max-height: 85px;
    height: 85px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
    transition: all 0.3s ease;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px;
}

.brand-logo-professional:hover {
    filter: drop-shadow(0 4px 12px rgba(0, 123, 255, 0.2));
    transform: translateY(-1px);
}

/* Professional Text Fallback */
.brand-text-professional {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Legacy Logo Support */
.brand-logo {
    max-height: 60px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-base);
}

/* Text-only brand when no logo is available */
.brand-text-only {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Legacy brand-text class (kept for backward compatibility) */
.brand-text {
    margin-left: 0.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link:hover {
    background-color: var(--light-color);
    transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
    background-color: var(--primary-color);
    color: white !important;
}

/* ==========================================================================
   Authentication Pages
   ========================================================================== */

.auth-container {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    padding: 2rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.auth-card {
    background: white;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 3rem;
    margin: 2rem 0;
    transition: var(--transition-base);
}

.auth-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 2rem 4rem rgba(0, 0, 0, 0.1);
}

.auth-header {
    margin-bottom: 2rem;
}

.auth-title {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 0;
}

.auth-form .form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.auth-form .form-control {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition-base);
}

.auth-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.auth-form .input-group-text {
    background-color: var(--light-color);
    border: 2px solid #e9ecef;
    border-right: none;
    color: var(--text-secondary);
}

.auth-form .btn {
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition-base);
}

.auth-form .btn-primary {
    background: var(--gradient-primary);
    border: none;
}

.auth-form .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Password Strength Indicator */
.password-strength .progress {
    border-radius: var(--border-radius);
    overflow: hidden;
}

.password-strength .progress-bar {
    transition: var(--transition-base);
}

/* Security Requirements */
.security-requirements {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 1rem;
}

.security-requirements ul li {
    transition: var(--transition-base);
    padding: 0.25rem 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition-base);
    border: none;
    padding: 0.5rem 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    color: white;
}

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

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

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Button Sizes */
.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* ==========================================================================
   Button Visibility Fixes - High Contrast for Colored Backgrounds
   ========================================================================== */

/* Outline buttons on colored backgrounds need white background for visibility */
.card-header .btn-outline-primary,
.bg-primary .btn-outline-primary,
.bg-gradient-primary .btn-outline-primary,
[class*="bg-"] .btn-outline-primary {
    background-color: white !important;
    color: var(--primary-color) !important;
    border-color: white !important;
    font-weight: 600;
}

.card-header .btn-outline-primary:hover,
.bg-primary .btn-outline-primary:hover,
.bg-gradient-primary .btn-outline-primary:hover,
[class*="bg-"] .btn-outline-primary:hover {
    background-color: var(--primary-color) !important;
    color: white !important;
    border-color: white !important;
    transform: translateY(-2px);
}

.card-header .btn-outline-danger,
.bg-danger .btn-outline-danger,
[class*="bg-"] .btn-outline-danger {
    background-color: white !important;
    color: var(--danger-color) !important;
    border-color: white !important;
    font-weight: 600;
}

.card-header .btn-outline-danger:hover,
.bg-danger .btn-outline-danger:hover,
[class*="bg-"] .btn-outline-danger:hover {
    background-color: var(--danger-color) !important;
    color: white !important;
    border-color: white !important;
    transform: translateY(-2px);
}

.card-header .btn-outline-success,
.bg-success .btn-outline-success,
[class*="bg-"] .btn-outline-success {
    background-color: white !important;
    color: var(--success-color) !important;
    border-color: white !important;
    font-weight: 600;
}

.card-header .btn-outline-success:hover,
.bg-success .btn-outline-success:hover,
[class*="bg-"] .btn-outline-success:hover {
    background-color: var(--success-color) !important;
    color: white !important;
    border-color: white !important;
    transform: translateY(-2px);
}

.card-header .btn-outline-warning,
.bg-warning .btn-outline-warning,
[class*="bg-"] .btn-outline-warning {
    background-color: white !important;
    color: var(--warning-color) !important;
    border-color: white !important;
    font-weight: 600;
}

.card-header .btn-outline-warning:hover,
.bg-warning .btn-outline-warning:hover,
[class*="bg-"] .btn-outline-warning:hover {
    background-color: var(--warning-color) !important;
    color: white !important;
    border-color: white !important;
    transform: translateY(-2px);
}

.card-header .btn-outline-info,
.bg-info .btn-outline-info,
[class*="bg-"] .btn-outline-info {
    background-color: white !important;
    color: var(--info-color) !important;
    border-color: white !important;
    font-weight: 600;
}

.card-header .btn-outline-info:hover,
.bg-info .btn-outline-info:hover,
[class*="bg-"] .btn-outline-info:hover {
    background-color: var(--info-color) !important;
    color: white !important;
    border-color: white !important;
    transform: translateY(-2px);
}

/* Ensure all small buttons have proper min-width for readability */
.btn-sm {
    min-width: 70px;
    text-align: center;
}

/* Link-style buttons on colored backgrounds */
.card-header .btn-link,
[class*="bg-gradient"] .btn-link,
[class*="bg-primary"] .btn-link,
[class*="bg-secondary"] .btn-link {
    color: white !important;
    text-decoration: underline;
    font-weight: 600;
}

.card-header .btn-link:hover,
[class*="bg-gradient"] .btn-link:hover {
    color: rgba(255, 255, 255, 0.85) !important;
    text-decoration: underline;
}

/* Additional fixes for admin panel gradient backgrounds */
.admin-header .btn-outline-primary,
.admin-header .btn-outline-secondary,
.admin-header .btn-outline-success,
.admin-header .btn-outline-danger,
.admin-header .btn-outline-warning,
.admin-header .btn-outline-info {
    background-color: white !important;
    border-color: white !important;
    font-weight: 600;
}

/* Dark/Gradient card headers - force white buttons */
.card-header[class*="bg-primary"],
.card-header[class*="bg-secondary"],
.card-header[class*="bg-success"],
.card-header[class*="bg-danger"],
.card-header[class*="bg-warning"],
.card-header[class*="bg-info"],
.card-header[class*="bg-dark"],
.card-header[class*="gradient"],
.card-header[style*="background"],
.card-header[style*="linear-gradient"] {
    color: white !important;
}

.card-header[class*="bg-primary"] .btn-outline-primary,
.card-header[class*="bg-secondary"] .btn-outline-primary,
.card-header[class*="bg-success"] .btn-outline-primary,
.card-header[class*="bg-danger"] .btn-outline-primary,
.card-header[class*="bg-warning"] .btn-outline-primary,
.card-header[class*="bg-info"] .btn-outline-primary,
.card-header[class*="bg-dark"] .btn-outline-primary,
.card-header[class*="gradient"] .btn-outline-primary,
.card-header[style*="background"] .btn-outline-primary,
.card-header[style*="linear-gradient"] .btn-outline-primary {
    background-color: white !important;
    color: #007bff !important;
    border-color: white !important;
    font-weight: 600 !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1) !important;
}

/* Specific fix for light backgrounds to ensure dark text */
.card-header.bg-white .btn-outline-primary,
.card-header.bg-light .btn-outline-primary,
.card-header[style*="background: white"] .btn-outline-primary,
.card-header[style*="background: #fff"] .btn-outline-primary {
    background-color: transparent !important;
    color: #007bff !important;
    border-color: #007bff !important;
    font-weight: 600 !important;
}

.card-header.bg-white .btn-outline-primary:hover,
.card-header.bg-light .btn-outline-primary:hover {
    background-color: #007bff !important;
    color: white !important;
    border-color: #007bff !important;
}

/* Ensure text readability on all colored backgrounds */
[style*="background: linear-gradient"] .btn,
[style*="background: rgb"] .btn,
[style*="background: #"] .btn {
    position: relative;
    z-index: 1;
}

/* Dashboard specific fixes */
.dashboard-container .card-header .btn,
.admin-dashboard .card-header .btn,
.user-dashboard .card-header .btn {
    box-shadow: 0 2px 8px rgba(0,0,0,0.15) !important;
    font-weight: 600 !important;
}

/* Universal high-contrast button fix - contextual based on parent */
[class*="bg-primary"] .btn-sm.btn-outline-primary,
[class*="bg-secondary"] .btn-sm.btn-outline-primary,
[class*="bg-success"] .btn-sm.btn-outline-primary,
[class*="bg-danger"] .btn-sm.btn-outline-primary,
[class*="bg-warning"] .btn-sm.btn-outline-primary,
[class*="bg-info"] .btn-sm.btn-outline-primary,
[class*="bg-dark"] .btn-sm.btn-outline-primary,
[class*="gradient"] .btn-sm.btn-outline-primary,
[style*="background"] .btn-sm.btn-outline-primary {
    background-color: white !important;
    color: #007bff !important;
    border: 2px solid white !important;
    font-weight: 600;
    text-shadow: none;
}

[class*="bg-primary"] .btn-sm.btn-outline-danger,
[class*="bg-secondary"] .btn-sm.btn-outline-danger,
[class*="gradient"] .btn-sm.btn-outline-danger,
[style*="background"] .btn-sm.btn-outline-danger {
    background-color: white !important;
    color: #dc3545 !important;
    border: 2px solid white !important;
    font-weight: 600;
}

[class*="bg-primary"] .btn-sm.btn-outline-success,
[class*="gradient"] .btn-sm.btn-outline-success,
[style*="background"] .btn-sm.btn-outline-success {
    background-color: white !important;
    color: #28a745 !important;
    border: 2px solid white !important;
    font-weight: 600;
}

/* Hover states for colored backgrounds */
[class*="bg-primary"] .btn-sm.btn-outline-primary:hover,
[class*="bg-secondary"] .btn-sm.btn-outline-primary:hover,
[class*="gradient"] .btn-sm.btn-outline-primary:hover {
    background-color: #007bff !important;
    color: white !important;
    border-color: #007bff !important;
}

[class*="bg-danger"] .btn-sm.btn-outline-danger:hover,
[class*="gradient"] .btn-sm.btn-outline-danger:hover {
    background-color: #dc3545 !important;
    color: white !important;
    border-color: #dc3545 !important;
}

/* Improve default outline button contrast */
.btn-outline-primary {
    border-width: 2px;
    font-weight: 500;
}

.btn-outline-danger {
    border-width: 2px;
    font-weight: 500;
}

.btn-outline-success {
    border-width: 2px;
    font-weight: 500;
}

/* Force high visibility for all buttons on card headers */
.card-header .btn {
    text-shadow: none !important;
    letter-spacing: 0.5px;
}

/* Mobile responsiveness for buttons */
@media (max-width: 768px) {
    .btn-sm {
        font-size: 0.8rem;
        padding: 0.3rem 0.6rem;
        min-width: 60px;
    }
    
    .card-header .btn {
        white-space: nowrap;
    }
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-control {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    transition: var(--transition-base);
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-select {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    transition: var(--transition-base);
}

.form-check-input {
    margin-top: 0.25rem;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Input Groups */
.input-group .form-control {
    border-right: none;
}

.input-group .input-group-text {
    background-color: var(--light-color);
    border: 2px solid #e9ecef;
    border-left: none;
}

.input-group:focus-within .input-group-text {
    border-color: var(--primary-color);
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.card-header {
    background: var(--gradient-primary);
    color: white;
    border-bottom: none;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* ==========================================================================
   Alerts
   ========================================================================== */

.alert {
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    padding: 1rem 1.25rem;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: var(--text-light);
    margin-top: auto;
}

.footer-title {
    color: white;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition-base);
    font-size: 0.9rem;
}

.footer-link:hover {
    color: white;
    padding-left: 0.5rem;
}

.social-links {
    margin-top: 1rem;
}

.social-link {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    transition: var(--transition-base);
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.2);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-badges .badge {
    margin: 0.25rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
}

/* Newsletter Form */
.newsletter-form .form-control {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.newsletter-form .form-control::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.newsletter-form .form-control:focus {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-color);
    color: white;
}

/* ==========================================================================
   Back to Top Button
   ========================================================================== */

.btn-back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 1000;
    cursor: pointer;
}

.btn-back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.btn-back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: white;
}

/* ==========================================================================
   Loading Overlay
   ========================================================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.bg-gradient-primary {
    background: var(--gradient-primary) !important;
}

.bg-gradient-secondary {
    background: var(--gradient-secondary) !important;
}

.bg-gradient-success {
    background: var(--gradient-success) !important;
}

.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.border-gradient {
    border: 2px solid;
    border-image: var(--gradient-primary) 1;
}

.rounded-xl {
    border-radius: var(--border-radius-xl) !important;
}

.shadow-hover {
    transition: var(--transition-base);
}

.shadow-hover:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease-out;
}

.animate-slideInRight {
    animation: slideInRight 0.6s ease-out;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    .auth-card {
        padding: 2rem 1.5rem;
        margin: 1rem 0;
    }
    
    .auth-title {
        font-size: 1.75rem;
    }
    
    .btn-back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
    
    .footer .col-md-6 {
        text-align: center !important;
        margin-bottom: 1rem;
    }
    
    .social-links {
        justify-content: center;
        display: flex;
    }
}

@media (max-width: 576px) {
    .auth-container {
        padding: 1rem 0;
    }
    .auth-card {
        padding: 1.5rem 1rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
        padding: 0.25rem 0;
    }
    
    .brand-logo-professional {
        max-height: 65px;
        height: 65px;
        padding: 2px;
    }
    
    .brand-text-professional {
        font-size: 1.5rem;
    }
    
    /* Legacy mobile support */
    .brand-logo {
        max-height: 35px;
    }
    
    .brand-text-only {
        font-size: 1.25rem;
    }
    
    .brand-text {
        display: none;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .header-main,
    .footer,
    .btn-back-to-top,
    .loading-overlay {
        display: none !important;
    }
    
    .auth-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    * {
        color: #000 !important;
        background: transparent !important;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

/* Skip to main content link */
.visually-hidden-focusable:not(:focus):not(:focus-within) {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.visually-hidden-focusable:focus {
    position: absolute;
    top: 0;
    left: 0;
    width: auto;
    height: auto;
    padding: 0.5rem 1rem;
    margin: 0;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    z-index: 9999;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --text-primary: #000000;
        --text-secondary: #333333;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
}

/* 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;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================================
   AdSense and SEO Enhancements
   ========================================================================== */

/* AdSense Containers */
.ad-container {
    margin: 20px 0;
    text-align: center;
    clear: both;
}

.ad-placeholder {
    background: var(--bg-secondary);
    border: 2px dashed #dee2e6;
    border-radius: var(--border-radius);
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
    margin: 20px 0;
    transition: all 0.3s ease;
}

.ad-placeholder:hover {
    border-color: var(--primary-color);
    background: rgba(0, 123, 255, 0.05);
}

.ad-placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.ad-placeholder-content i {
    font-size: 2rem;
    opacity: 0.6;
}

.ad-placeholder-text {
    font-weight: 500;
    font-size: 0.9rem;
}

/* Specific Ad Placements */
.ad-header {
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

.ad-sidebar {
    position: sticky;
    top: 20px;
    margin: 20px 0;
}

.ad-footer {
    margin-top: 30px;
    border-top: 1px solid #dee2e6;
    padding-top: 30px;
}

.ad-content-middle {
    margin: 40px 0;
    padding: 20px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

/* Social Sharing Styles */
.social-sharing {
    margin: 30px 0;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    text-align: center;
}

.social-sharing-title {
    margin-bottom: 15px;
    color: var(--text-primary);
    font-weight: 600;
}

.social-sharing-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.social-sharing-buttons .btn {
    flex: 0 0 auto;
    min-width: 100px;
    font-size: 0.875rem;
    padding: 8px 16px;
}

.btn-facebook { background-color: #1877f2; border-color: #1877f2; color: white; }
.btn-twitter { background-color: #1da1f2; border-color: #1da1f2; color: white; }
.btn-linkedin { background-color: #0077b5; border-color: #0077b5; color: white; }
.btn-whatsapp { background-color: #25d366; border-color: #25d366; color: white; }
.btn-telegram { background-color: #0088cc; border-color: #0088cc; color: white; }
.btn-reddit { background-color: #ff4500; border-color: #ff4500; color: white; }

/* Breadcrumb Enhancements */
.breadcrumb-nav {
    margin-bottom: 20px;
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
    font-size: 0.9rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    color: var(--text-muted);
    font-weight: 600;
}

/* Mobile AdSense Styles */
@media (max-width: 768px) {
    .ad-container {
        margin: 15px 0;
    }
    
    .ad-sidebar {
        position: static;
        margin: 20px 0;
    }
    
    .ad-placeholder {
        padding: 30px 15px;
    }
    
    .social-sharing-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .social-sharing-buttons .btn {
        min-width: 200px;
    }
}