/* ============================================
   Sistema de Librería - Professional Styling
   Best Practices: WCAG AA, Modern Design, Accessibility
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@600;700;800&display=swap');

/* ===== GLOBAL VARIABLES ===== */
:root {
    /* Primary Colors */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-50: #eff6ff;
    
    /* 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;
    
    /* Semantic */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #06b6d4;
    --info-light: #cffafe;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border & Shadows */
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

:root[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --primary-50: #0f172a;
    
    --gray-50: #111827;
    --gray-100: #1f2937;
    --gray-200: #374151;
    --gray-300: #4b5563;
    --gray-400: #6b7280;
    --gray-500: #9ca3af;
    --gray-600: #d1d5db;
    --gray-700: #e5e7eb;
    --gray-800: #f3f4f6;
    --gray-900: #f9fafb;
    
    --border-color: #374151;
}

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

html {
    height: 100%;
    margin: 0;
}

body {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.6;
    font-size: 16px;
    transition: background-color var(--transition-base), color var(--transition-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
}

main[role="main"] {
    flex: 1 0 auto;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

:root[data-theme="dark"] h1,
:root[data-theme="dark"] h2,
:root[data-theme="dark"] h3,
:root[data-theme="dark"] h4,
:root[data-theme="dark"] h5,
:root[data-theme="dark"] h6 {
    color: var(--gray-50);
}

h1 { font-size: 2.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; letter-spacing: -0.005em; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

:root[data-theme="dark"] p {
    color: var(--gray-400);
}

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

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

/* ===== MAIN CONTENT ===== */
main[role="main"] {
    flex: 1;
}

header {
    flex-shrink: 0;
}

/* ===== NAVBAR ===== */
.navbar {
    background: linear-gradient(135deg, #ffffff 0%, #f9fafb 100%) !important;
    border-bottom: 2px solid var(--border-color) !important;
    box-shadow: var(--shadow-md) !important;
    padding: var(--spacing-lg) 0 !important;
    flex-shrink: 0;
}

:root[data-theme="dark"] .navbar {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%) !important;
}

.navbar-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -1px;
    color: var(--primary) !important;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.navbar-brand:hover {
    transform: translateX(4px);
    color: var(--primary-dark) !important;
}

.navbar-brand i {
    font-size: 1.75rem;
}

/* Navbar Buttons */
.btn-navbar {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(37, 99, 235, 0.02));
    color: var(--primary);
    border: 1.5px solid rgba(37, 99, 235, 0.2);
    transition: all var(--transition-base);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 10px;
}

.btn-navbar:hover {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(37, 99, 235, 0.08));
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.2);
    color: var(--primary-dark);
}

:root[data-theme="dark"] .btn-navbar {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.12), rgba(96, 165, 250, 0.04));
    color: #60a5fa;
    border-color: rgba(96, 165, 250, 0.3);
}

:root[data-theme="dark"] .btn-navbar:hover {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(96, 165, 250, 0.1));
    border-color: #60a5fa;
}

/* Dropdowns */
.dropdown-menu {
    border-radius: 12px !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-lg) !important;
    margin-top: 12px !important;
    background-color: #ffffff !important;
    padding: var(--spacing-md) 0 !important;
}

:root[data-theme="dark"] .dropdown-menu {
    background-color: var(--gray-100) !important;
}

.dropdown-item {
    color: var(--gray-700) !important;
    font-weight: 500;
    padding: var(--spacing-md) var(--spacing-lg) !important;
    transition: all var(--transition-fast);
    border-radius: 8px;
    margin: 0 var(--spacing-md);
}

:root[data-theme="dark"] .dropdown-item {
    color: var(--gray-300) !important;
}

.dropdown-item:hover {
    background-color: var(--primary-50) !important;
    color: var(--primary) !important;
}

.dropdown-item i {
    width: 18px;
    margin-right: var(--spacing-md);
    color: var(--primary);
}

/* ===== CARDS ===== */
.card {
    border: 0 !important;
    border-radius: 12px !important;
    background: #ffffff !important;
    box-shadow: var(--shadow-sm) !important;
    overflow: hidden;
    transition: all var(--transition-base);
}

:root[data-theme="dark"] .card {
    background: var(--gray-100) !important;
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary-50) 0%, transparent 100%);
    border-bottom: 1px solid var(--border-color) !important;
    padding: var(--spacing-lg) !important;
}

:root[data-theme="dark"] .card-header {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), transparent 100%);
}

.card-title {
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0;
}

:root[data-theme="dark"] .card-title {
    color: var(--gray-50);
}

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

/* ===== TABLES ===== */
.table {
    color: var(--gray-700);
    margin-bottom: 0;
}

:root[data-theme="dark"] .table {
    color: var(--gray-300);
}

.table thead th {
    background-color: var(--gray-100);
    color: var(--gray-900);
    font-weight: 700;
    border-bottom: 2px solid var(--border-color) !important;
    padding: var(--spacing-lg) var(--spacing-md) !important;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

:root[data-theme="dark"] .table thead th {
    background-color: var(--gray-200);
    color: var(--gray-900);
}

.table tbody td {
    border-bottom: 1px solid var(--border-color) !important;
    padding: var(--spacing-lg) var(--spacing-md) !important;
    vertical-align: middle;
    color: var(--gray-700);
}

:root[data-theme="dark"] .table tbody td {
    color: var(--gray-300);
}

.table-hover tbody tr:hover {
    background-color: var(--gray-50) !important;
}

:root[data-theme="dark"] .table-hover tbody tr:hover {
    background-color: var(--gray-200) !important;
}

/* ===== BADGES ===== */
.badge {
    font-size: 0.85rem;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    background-color: var(--primary-light);
    color: #ffffff;
    display: inline-block;
}

.badge.bg-secondary {
    background-color: var(--gray-300) !important;
    color: var(--gray-900) !important;
}

.badge.bg-success {
    background-color: var(--success) !important;
    color: #ffffff !important;
}

.badge.bg-warning {
    background-color: var(--warning) !important;
    color: #ffffff !important;
}

.badge.bg-danger {
    background-color: var(--danger) !important;
    color: #ffffff !important;
}

/* ===== ACTION BUTTONS (Table Actions) ===== */
.btn-action {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    border-radius: 8px;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
}

.btn-action:hover {
    transform: translateY(-2px);
}

.btn-action-view {
    background-color: var(--info-light);
    color: var(--info);
    border-color: var(--info);
}

.btn-action-view:hover {
    background-color: var(--info);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.btn-action-edit {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-color: var(--primary);
}

.btn-action-edit:hover {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-action-delete {
    background-color: var(--danger-light);
    color: var(--danger);
    border-color: var(--danger);
}

.btn-action-delete:hover {
    background-color: var(--danger);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

:root[data-theme="dark"] .btn-action-view {
    background-color: rgba(6, 182, 212, 0.15);
    color: #22d3ee;
    border-color: rgba(6, 182, 212, 0.5);
}

:root[data-theme="dark"] .btn-action-view:hover {
    background-color: #0891b2;
    color: #ffffff;
}

:root[data-theme="dark"] .btn-action-edit {
    background-color: rgba(96, 165, 250, 0.15);
    color: #60a5fa;
    border-color: rgba(96, 165, 250, 0.5);
}

:root[data-theme="dark"] .btn-action-edit:hover {
    background-color: #3b82f6;
    color: #ffffff;
}

:root[data-theme="dark"] .btn-action-delete {
    background-color: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.5);
}

:root[data-theme="dark"] .btn-action-delete:hover {
    background-color: #dc2626;
    color: #ffffff;
}

/* Action button group styling */
.btn-group-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-group-actions .btn-action i {
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
    color: #ffffff !important;
}

/* Outline Buttons */
.btn-outline-primary {
    color: var(--primary) !important;
    border: 1.5px solid var(--primary) !important;
    background: transparent !important;
}

.btn-outline-primary:hover {
    background-color: var(--primary-50) !important;
    color: var(--primary-dark) !important;
}

.btn-outline-secondary {
    color: var(--gray-600) !important;
    border: 1.5px solid var(--border-color) !important;
    background: transparent !important;
}

.btn-outline-secondary:hover {
    background-color: var(--gray-100) !important;
    color: var(--gray-900) !important;
    border-color: var(--gray-300) !important;
}

:root[data-theme="dark"] .btn-outline-secondary:hover {
    background-color: var(--gray-200) !important;
}

.btn-outline-danger {
    color: var(--danger) !important;
    border: 1.5px solid rgba(239, 68, 68, 0.3) !important;
    background: transparent !important;
}

.btn-outline-danger:hover {
    background-color: var(--danger-light) !important;
    color: var(--danger) !important;
    border-color: var(--danger) !important;
}

.btn-outline-info {
    color: var(--info) !important;
    border: 1.5px solid rgba(6, 182, 212, 0.3) !important;
    background: transparent !important;
}

.btn-outline-info:hover {
    background-color: var(--info-light) !important;
    color: var(--info) !important;
    border-color: var(--info) !important;
}

.btn-link {
    color: var(--primary) !important;
    background: transparent !important;
    border: 0 !important;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem !important;
}

.btn-link:hover {
    color: var(--primary-dark) !important;
    text-decoration: underline;
}

.btn-sm {
    padding: 0.45rem 0.9rem;
    font-size: 0.875rem;
}

/* ===== FORMS - ENHANCED ===== */
.form-wrapper {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    padding: 2rem;
}

:root[data-theme="dark"] .form-wrapper {
    background: var(--gray-100);
}

.form-section {
    margin-bottom: 2rem;
}

.form-section:last-child {
    margin-bottom: 0;
}

.form-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

:root[data-theme="dark"] .form-section-title {
    color: var(--gray-50);
}

.form-section-title i {
    font-size: 1.25rem;
    color: var(--primary);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

:root[data-theme="dark"] .form-label {
    color: var(--gray-50);
}

.form-label .required {
    color: var(--danger);
    font-weight: 700;
}

.form-control {
    border-radius: 10px;
    border: 1.5px solid var(--border-color);
    background-color: #ffffff;
    color: var(--gray-900);
    padding: 0.85rem 1rem;
    transition: all var(--transition-fast);
    font-size: 0.95rem;
}

:root[data-theme="dark"] .form-control {
    background-color: var(--gray-100);
    color: var(--gray-900);
    border-color: var(--border-color);
}

.form-control::placeholder {
    color: var(--gray-400);
    opacity: 0.7;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    background-color: #ffffff;
    color: var(--gray-900);
}

:root[data-theme="dark"] .form-control:focus {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.form-text {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 0.5rem;
    display: block;
}

:root[data-theme="dark"] .form-text {
    color: var(--gray-500);
}

.form-control.is-invalid {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.02);
}

.form-control.is-invalid:focus {
    border-color: var(--danger);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.invalid-feedback {
    display: block;
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.valid-feedback {
    display: block;
    color: var(--success);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.form-control-feedback-icon {
    position: relative;
}

.form-control-feedback-icon::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.1rem;
}

.form-control.is-invalid ~ .form-control-feedback-icon::after {
    content: '✕';
    color: var(--danger);
}

.form-control.is-valid ~ .form-control-feedback-icon::after {
    content: '✓';
    color: var(--success);
}

/* Form Row Styling */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.form-actions .btn {
    flex: 1;
    min-width: 150px;
    padding: 0.75rem 1.5rem;
}

.form-actions .btn-primary {
    order: 1;
}

.form-actions .btn-outline-secondary {
    order: 2;
}

@media (max-width: 768px) {
    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }

    .form-wrapper {
        padding: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Alert Styling - Validation Summary */
.alert {
    border-radius: 12px;
    border: 1px solid;
    padding: 1rem;
    margin-bottom: 1.5rem;
    animation: slideInDown 0.3s ease-out;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

:root[data-theme="dark"] .alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.4);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--success);
}

:root[data-theme="dark"] .alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.4);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

:root[data-theme="dark"] .alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.4);
}

.alert-info {
    background-color: rgba(6, 182, 212, 0.08);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--info);
}

:root[data-theme="dark"] .alert-info {
    background-color: rgba(6, 182, 212, 0.1);
    border-color: rgba(6, 182, 212, 0.4);
}

.alert strong {
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

.alert ul {
    margin: 0.5rem 0 0 1.5rem;
    padding-left: 0;
}

.alert li {
    margin-bottom: 0.25rem;
}

/* ===== TEXT UTILITIES ===== */
.text-muted {
    color: var(--gray-500) !important;
}

:root[data-theme="dark"] .text-muted {
    color: var(--gray-500) !important;
}

.text-primary {
    color: var(--primary) !important;
}

.text-secondary {
    color: var(--gray-600) !important;
}

.text-danger {
    color: var(--danger) !important;
}

.text-success {
    color: var(--success) !important;
}

.fw-semibold {
    font-weight: 600 !important;
}

.fw-bold {
    font-weight: 700 !important;
}

/* ===== FOOTER ===== */
footer.footer {
    background: #ffffff;
    border-top: 1px solid var(--border-color);
    color: var(--gray-600);
    padding: 2.5rem 0 1.5rem 0;
    text-align: center;
    flex-shrink: 0;
    margin-top: auto;
}

:root[data-theme="dark"] footer.footer {
    background: var(--gray-100);
    color: var(--gray-500);
}

/* Footer Content Structure */
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

/* Footer Brand */
.footer-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    margin-bottom: 0;
}

:root[data-theme="dark"] .footer-brand {
    color: #60a5fa;
}

.footer-brand i {
    font-size: 1.25rem;
}

/* Footer Social Links */
.footer-social {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 1.2rem;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    text-decoration: none;
}

:root[data-theme="dark"] .social-link {
    background: var(--gray-200);
    color: var(--gray-900);
    border-color: var(--gray-300);
}

.social-link:hover {
    background: var(--primary);
    color: #ffffff !important;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.2);
    border-color: var(--primary);
}

:root[data-theme="dark"] .social-link:hover {
    background: #3b82f6;
}

/* Footer Info */
.footer-info {
    text-align: center;
}

@media (min-width: 768px) {
    .footer-info {
        text-align: right;
    }
}

.footer-info p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--gray-600);
}

:root[data-theme="dark"] .footer-info p {
    color: var(--gray-400);
}

/* Footer Links */
.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

.footer-links a {
    color: var(--gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

:root[data-theme="dark"] .footer-links a {
    color: var(--gray-400);
}

.footer-links a:hover {
    color: var(--primary);
    text-decoration: underline;
}

footer.footer a {
    color: var(--primary);
}

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

/* ===== MODALS ===== */
.modal-content {
    background-color: #ffffff;
    color: var(--gray-900);
    border: 0;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
}

:root[data-theme="dark"] .modal-content {
    background-color: var(--gray-100);
    color: var(--gray-50);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-50) 0%, transparent 100%);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg);
}

:root[data-theme="dark"] .modal-header {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), transparent 100%);
}

.modal-title {
    font-weight: 700;
    color: var(--gray-900);
    font-family: 'Poppins', sans-serif;
}

:root[data-theme="dark"] .modal-title {
    color: var(--gray-50);
}

.modal-body {
    padding: var(--spacing-lg);
    color: var(--gray-700);
}

:root[data-theme="dark"] .modal-body {
    color: var(--gray-300);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    background-color: var(--gray-100);
}

:root[data-theme="dark"] .modal-footer {
    background-color: var(--gray-200);
}

.btn-close {
    filter: brightness(0);
}

:root[data-theme="dark"] .btn-close {
    filter: brightness(1);
}

/* ===== THEME TOGGLE ===== */
#themeToggle {
    border-radius: 50%;
    width: 48px;
    height: 48px;
    padding: 0 !important;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    background: #ffffff !important;
    border: 1.5px solid var(--border-color) !important;
    color: var(--primary) !important;
}

:root[data-theme="dark"] #themeToggle {
    background: var(--gray-100) !important;
}

#themeToggle:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: var(--shadow-lg);
}

/* ===== HOME PAGE HERO SECTION ===== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-50) 0%, transparent 100%);
    padding: 4rem 0;
    margin-bottom: 3rem;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1), transparent);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideInDown 0.6s ease-out;
}

:root[data-theme="dark"] .hero-content h1 {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    animation: slideInUp 0.6s ease-out 0.1s both;
}

:root[data-theme="dark"] .hero-content p {
    color: var(--gray-400);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    animation: slideInUp 0.6s ease-out 0.2s both;
}

.hero-buttons .btn {
    padding: 0.8rem 2rem;
    font-size: 1rem;
}

/* ===== FEATURE CARDS ===== */
.feature-card {
    border: 0 !important;
    border-radius: 16px !important;
    background: #ffffff !important;
    box-shadow: var(--shadow-sm) !important;
    overflow: hidden;
    transition: all var(--transition-base);
    height: 100%;
    position: relative;
}

:root[data-theme="dark"] .feature-card {
    background: var(--gray-100) !important;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transition: height var(--transition-base);
}

.feature-card:hover {
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
    transform: translateY(-8px);
}

.feature-card:hover::before {
    height: 8px;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-50), rgba(37, 99, 235, 0.05));
    color: var(--primary);
}

:root[data-theme="dark"] .feature-icon {
    background: linear-gradient(135deg, rgba(60, 130, 246, 0.1), rgba(37, 99, 235, 0.05));
}

.feature-card h5 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

:root[data-theme="dark"] .feature-card h5 {
    color: var(--gray-50);
}

.feature-card p {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

:root[data-theme="dark"] .feature-card p {
    color: var(--gray-400);
}

.feature-card .btn-link {
    padding-left: 0 !important;
}

/* ===== BENEFITS SECTION ===== */
.benefits-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 16px;
    padding: 3rem;
    color: #ffffff;
    margin: 3rem 0;
}

:root[data-theme="dark"] .benefits-section {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.benefits-section h2 {
    color: #ffffff;
    margin-bottom: 2rem;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    animation: fadeIn 0.6s ease-out;
}

.benefit-item:last-child {
    margin-bottom: 0;
}

.benefit-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
    font-size: 1.5rem;
}

.benefit-text h6 {
    color: #ffffff;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.benefit-text p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    font-size: 0.95rem;
}

/* ===== STATS SECTION ===== */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-50), rgba(37, 99, 235, 0.05));
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

:root[data-theme="dark"] .stat-card {
    background: linear-gradient(135deg, rgba(60, 130, 246, 0.1), rgba(37, 99, 235, 0.05));
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15);
    border-color: var(--primary);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

:root[data-theme="dark"] .stat-number {
    color: #60a5fa;
}

.stat-label {
    font-size: 1rem;
    color: var(--gray-600);
    font-weight: 600;
}

:root[data-theme="dark"] .stat-label {
    color: var(--gray-400);
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(37, 99, 235, 0.05));
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
    text-align: center;
    margin: 3rem 0;
}

:root[data-theme="dark"] .cta-section {
    background: linear-gradient(135deg, rgba(60, 130, 246, 0.1), rgba(37, 99, 235, 0.05));
    border-color: var(--border-color);
}

.cta-section h3 {
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* ===== ANIMATIONS ===== */
@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* ===== DELETE CONFIRMATION PAGE ===== */
.delete-confirmation-card {
    border-left: 4px solid var(--danger) !important;
    max-width: 600px;
    margin: 3rem auto;
    animation: slideInUp 0.5s ease-out;
}

.delete-icon-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.delete-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--danger);
    border: 2px solid rgba(239, 68, 68, 0.2);
}

.delete-warning-box {
    background: linear-gradient(135deg, var(--danger-light) 0%, rgba(239, 68, 68, 0.08) 100%);
    border: 1.5px solid rgba(239, 68, 68, 0.3);
    border-radius: 10px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

:root[data-theme="dark"] .delete-warning-box {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.05));
}

.delete-warning-box .delete-item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(239, 68, 68, 0.2);
}

.delete-warning-box .delete-item:last-child {
    border-bottom: none;
}

.delete-item-label {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

:root[data-theme="dark"] .delete-item-label {
    color: var(--gray-400);
}

.delete-item-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--danger);
    word-break: break-word;
}

.delete-actions {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.btn-delete-confirm {
    background: linear-gradient(135deg, var(--danger) 0%, rgba(239, 68, 68, 0.8) 100%) !important;
    color: #ffffff !important;
    flex: 1;
    min-width: 150px;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
    transition: all var(--transition-base);
}

.btn-delete-confirm:hover {
    box-shadow: 0 8px 24px rgba(239, 68, 68, 0.4);
    transform: translateY(-2px);
}

.btn-delete-cancel {
    background: transparent !important;
    color: var(--gray-600) !important;
    border: 1.5px solid var(--border-color) !important;
    flex: 1;
    min-width: 150px;
}

.btn-delete-cancel:hover {
    background-color: var(--gray-100) !important;
    color: var(--gray-900) !important;
    border-color: var(--gray-300) !important;
}

:root[data-theme="dark"] .btn-delete-cancel:hover {
    background-color: var(--gray-200) !important;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 0;
        margin-bottom: 2rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 0.75rem;
    }

    .benefits-section {
        padding: 2rem;
    }

    .cta-section {
        padding: 2rem;
    }

    .stats-section {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* ===== UTILITIES ===== */
.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow {
    box-shadow: var(--shadow-md) !important;
}

.rounded-lg {
    border-radius: 12px !important;
}

.gap-3 {
    gap: var(--spacing-lg) !important;
}

.mb-0 { margin-bottom: 0 !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.me-2 { margin-right: var(--spacing-sm) !important; }
.ms-2 { margin-left: var(--spacing-sm) !important; }

.text-end { text-align: right; }
.text-center { text-align: center; }
.d-flex { display: flex; }
.d-none { display: none !important; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.justify-content-end { justify-content: flex-end; }

/* Accessibility */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}