:root {
    --primary-red: #DC143C;
    --dark-red: #B0102E;
    --light-red: #FF4757;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html[data-theme="light"],
body[data-theme="light"] {
    --bg-dark: #F8F9FA;
    --bg-card: #FFFFFF;
    --bg-hover: #F1F3F5;
    --text-primary: #1A202C;
    --text-secondary: #6B7280;
    --border-color: #E5E7EB;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

html[data-theme="dark"],
body[data-theme="dark"] {
    --bg-dark: #0F1419;
    --bg-card: #1A1F26;
    --bg-hover: #252C35;
    --text-primary: #E8EAED;
    --text-secondary: #9BA1A8;
    --border-color: #2D3640;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    color-scheme: light;
}

html[data-theme="dark"] {
    color-scheme: dark;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body[data-theme="light"] {
    background: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
}

body[data-theme="dark"] {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1a2e 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    white-space: nowrap;
}

.btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn.loading::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spinBtn 0.6s linear infinite;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(220, 20, 60, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(220, 20, 60, 0.4);
}

.btn-primary.loading::before {
    border-top-color: white;
    border-right-color: white;
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary-red);
}

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

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

.card {
    background: var(--bg-card);
    border-radius: 18px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

body[data-theme="dark"] .card {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

body[data-theme="dark"] .card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    transition: var(--transition);
    font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 4px rgba(220, 20, 60, 0.1);
}

.form-input::placeholder {
    color: var(--text-secondary);
}

.alert {
    padding: 16px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .card {
        padding: 20px;
        border-radius: 12px;
    }
    
    .form-input,
    .form-select,
    .form-textarea {
        padding: 12px 14px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .card {
        padding: 16px;
    }
}

.select2-container {
    width: 100% !important;
}

.select2-container--default .select2-selection--single {
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-dark);
    padding: 12px 14px;
    transition: var(--transition);
}

body[data-theme="light"] .select2-container--default .select2-selection--single {
    background: var(--bg-dark);
    border-color: var(--border-color);
}

body[data-theme="dark"] .select2-container--default .select2-selection--single {
    background: var(--bg-dark);
    border-color: var(--border-color);
}

.select2-container--default .select2-selection--single:hover {
    border-color: var(--primary-red);
}

.select2-container--default.select2-container--open .select2-selection--single {
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(220, 20, 60, 0.3);
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--text-primary);
    line-height: 1.5;
    padding: 0;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 100%;
    right: 12px;
}

.select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: var(--text-secondary) transparent transparent transparent;
}

.select2-dropdown {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-card);
    box-shadow: var(--shadow-lg);
    margin-top: 4px;
}

body[data-theme="light"] .select2-dropdown {
    background: var(--bg-card);
    border-color: var(--border-color);
}

body[data-theme="dark"] .select2-dropdown {
    background: var(--bg-card);
    border-color: var(--border-color);
}

.select2-search--dropdown .select2-search__field {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    background: var(--bg-dark);
    color: var(--text-primary);
    margin: 8px;
    width: calc(100% - 16px);
}

.select2-search--dropdown .select2-search__field:focus {
    border-color: var(--primary-red);
    outline: none;
    box-shadow: 0 0 0 3px rgba(220, 20, 60, 0.3);
}

.select2-results__option {
    padding: 10px 14px;
    color: var(--text-primary);
    transition: var(--transition);
}

.select2-results__option--highlighted {
    background: rgba(220, 20, 60, 0.1);
    color: var(--primary-red);
}

.select2-results__option[aria-selected="true"] {
    background: rgba(220, 20, 60, 0.15);
    color: var(--primary-red);
}

.select2-container--default .select2-results__option[aria-disabled="true"] {
    color: var(--text-secondary);
}

.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background: rgba(220, 20, 60, 0.1);
    color: var(--primary-red);
}

.select2-container--default .select2-results__option[aria-selected="true"] {
    background: rgba(220, 20, 60, 0.15);
    color: var(--primary-red);
}

.select2-container--default .select2-results__option--highlighted[aria-selected="true"] {
    background: rgba(220, 20, 60, 0.2);
    color: var(--primary-red);
}

.select2-results__option--loading {
    color: var(--text-secondary);
}

.select2-container--default .select2-selection--single[aria-disabled="true"] {
    background: var(--bg-hover);
    opacity: 0.6;
    cursor: not-allowed;
}