/* ============================================
   UNIFIED THEME - Web App Telegram
   Modern, Consistent Design System
   ============================================ */

/* === ROOT VARIABLES === */
:root {
    /* Colors */
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-danger: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-warning: linear-gradient(135deg, #ffd89b 0%, #19547b 100%);
    --gradient-info: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    --shadow-xl: 0 12px 32px rgba(0,0,0,0.2);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === DARK MODE VARIABLES === */
.dark-mode {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --border-color: #4a5568;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === PAGE CONTAINER === */
.page-container {
    min-height: 100vh;
    padding: var(--spacing-md);
}

/* === PAGE HEADER === */
.page-header {
    margin-bottom: var(--spacing-lg);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.page-subtitle {
    color: #6c757d;
    font-size: 1rem;
}

/* === CARDS === */
.modern-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.modern-card-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid #f0f0f0;
}

.modern-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* === BUTTONS === */
.btn-modern {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

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

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

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

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

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

/* === FORMS === */
.form-modern {
    margin-bottom: var(--spacing-lg);
}

.form-group-modern {
    margin-bottom: var(--spacing-md);
}

.form-label-modern {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: #333;
}

.form-control-modern {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 2px solid #e9ecef;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-control-modern:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-control-modern::placeholder {
    color: #adb5bd;
}

/* === INPUT GROUPS === */
.input-group-modern {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: #6c757d;
    font-size: 1.25rem;
}

.input-with-icon {
    padding-left: 3rem;
}

/* === BADGES === */
.badge-modern {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

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

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

/* === ALERTS === */
.alert-modern {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
}

.alert-success {
    background: #d4edda;
    border-left: 4px solid var(--success);
    color: #155724;
}

.alert-danger {
    background: #f8d7da;
    border-left: 4px solid var(--danger);
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border-left: 4px solid var(--warning);
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border-left: 4px solid var(--info);
    color: #0c5460;
}

/* === TABLES === */
.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-modern thead tr {
    background: #f8f9fa;
}

.table-modern th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
}

.table-modern td {
    padding: 1rem;
    border-bottom: 1px solid #f0f0f0;
}

.table-modern tbody tr {
    transition: all var(--transition-fast);
}

.table-modern tbody tr:hover {
    background: #f8f9fa;
}

/* === STATS CARDS === */
.stat-card-modern {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.stat-card-modern:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.stat-value-modern {
    font-size: 2.5rem;
    font-weight: 700;
    margin: var(--spacing-sm) 0;
}

.stat-label-modern {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #6c757d;
}

/* === EMPTY STATES === */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.empty-state-icon {
    font-size: 4rem;
    color: #e9ecef;
    margin-bottom: var(--spacing-md);
}

.empty-state-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #6c757d;
    margin-bottom: var(--spacing-xs);
}

.empty-state-text {
    color: #adb5bd;
}

/* === TABS === */
.tabs-modern {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid #e9ecef;
}

.tab-modern {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    cursor: pointer;
    font-weight: 600;
    color: #6c757d;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
}

.tab-modern:hover {
    color: var(--primary);
}

.tab-modern.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* === MODALS === */
.modal-modern .modal-content {
    border-radius: var(--radius-lg);
    border: none;
    box-shadow: var(--shadow-xl);
}

.modal-modern .modal-header {
    border-bottom: 2px solid #f0f0f0;
    padding: var(--spacing-lg);
}

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

.modal-modern .modal-footer {
    border-top: 2px solid #f0f0f0;
    padding: var(--spacing-lg);
}

/* === BREADCRUMB === */
.breadcrumb-modern {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.breadcrumb-modern a {
    color: #6c757d;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-modern a:hover {
    color: var(--primary);
}

.breadcrumb-separator {
    color: #adb5bd;
}

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

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

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

.animate-fadeIn {
    animation: fadeIn 0.5s ease;
}

.animate-slideInRight {
    animation: slideInRight 0.5s ease;
}

.animate-slideInLeft {
    animation: slideInLeft 0.5s ease;
}

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

.glass-effect {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .page-title {
        font-size: 1.5rem;
    }

    .modern-card {
        padding: var(--spacing-md);
    }

    .stat-value-modern {
        font-size: 2rem;
    }

    .tabs-modern {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}