:root {
    --primary: #4361ee;
    --primary-light: #e0e7ff;
    --secondary: #7209b7;
    --danger: #f72585;
    --warning: #f8961e;
    --success: #4cc9f0;
    --dark: #1a1a2e;
    --light: #f8f9fa;
    --gray: #6c757d;
    --border-radius: 12px;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
    color: var(--dark);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
}

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

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    animation: slideDown 0.5s ease-out;
}

h1 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.subtitle {
    color: var(--gray);
    font-size: 1rem;
    font-weight: 400;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 25px;
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    animation: fadeIn 0.6s ease-out 0.1s both;
}

.search-container {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-container i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
    z-index: 1;
}

.search-container input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: #f8fafc;
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.filter-container {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-container select {
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: #f8fafc;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    min-width: 180px;
}

.filter-container select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.stats {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 25px;
    animation: fadeIn 0.6s ease-out 0.2s both;
}

.stat-card {
    flex: 1;
    min-width: 180px;
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.stat-1 { background-color: rgba(67, 97, 238, 0.1); color: var(--primary); }
.stat-2 { background-color: rgba(114, 9, 183, 0.1); color: var(--secondary); }
.stat-3 { background-color: rgba(248, 149, 30, 0.1); color: var(--warning); }
.stat-4 { background-color: rgba(247, 37, 133, 0.1); color: var(--danger); }

.stat-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-info p {
    font-size: 0.9rem;
    color: var(--gray);
}

.add-btn-container {
    text-align: center;
    margin-bottom: 25px;
    animation: fadeIn 0.6s ease-out 0.3s both;
}

.add-btn {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 16px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.add-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.4);
}

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

.documents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
    animation: fadeIn 0.6s ease-out 0.4s both;
}

.document-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.document-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.12);
}

.document-card.warning {
    border-left: 5px solid var(--warning);
}

.document-card.expired {
    border-left: 5px solid var(--danger);
}

.document-image {
    height: 160px;
    width: 100%;
    overflow: hidden;
}

.document-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.document-card:hover .document-image img {
    transform: scale(1.05);
}

.document-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.document-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark);
    line-height: 1.4;
}

.document-dates {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--gray);
}

.document-date {
    display: flex;
    flex-direction: column;
}

.document-date span:first-child {
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 3px;
}

.document-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
    align-self: flex-start;
}

.status-active { background-color: rgba(76, 201, 240, 0.1); color: var(--success); }
.status-warning { background-color: rgba(248, 149, 30, 0.1); color: var(--warning); }
.status-expired { background-color: rgba(247, 37, 133, 0.1); color: var(--danger); }

.document-comment {
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 20px;
    line-height: 1.5;
    flex-grow: 1;
}

.document-actions {
    display: flex;
    gap: 10px;
}

.btn-edit, .btn-delete {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-edit {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary);
}

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

.btn-delete {
    background-color: rgba(247, 37, 133, 0.1);
    color: var(--danger);
}

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

/* Модальное окно */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    transform: translateY(30px);
    transition: transform 0.4s ease;
    position: relative;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 25px 25px 10px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.5rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--danger);
    transform: rotate(90deg);
}

.modal-body {
    padding: 25px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-control {
    width: 100%;
    padding: 14px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
    background: #f8fafc;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.photo-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.icon-selector h4 {
    margin-bottom: 10px;
    font-size: 1rem;
    color: var(--dark);
}

.icons-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.icon-option {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
}

.icon-option:hover {
    transform: scale(1.1);
}

.icon-option.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.icon-option img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.date-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.btn-save, .btn-cancel {
    flex: 1;
    padding: 16px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-save {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.btn-save:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(67, 97, 238, 0.4);
}

.btn-cancel {
    background: #f1f5f9;
    color: var(--gray);
}

.btn-cancel:hover {
    background: #e2e8f0;
    color: var(--dark);
}

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

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Адаптивность */
@media (max-width: 768px) {
    .controls {
        flex-direction: column;
    }
    
    .search-container, .filter-container {
        width: 100%;
    }
    
    .filter-container select {
        min-width: 100%;
    }
    
    .date-group {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        min-width: 100%;
    }
    
    .documents-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 15px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .documents-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        max-height: 85vh;
    }
}

/* Уведомление */
.notification {
    position: fixed;
    top: 30px;
    right: 30px;
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 1001;
    transform: translateX(150%);
    transition: transform 0.4s ease;
    max-width: 350px;
    border-left: 5px solid var(--primary);
}

.notification.show {
    transform: translateX(0);
}

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: var(--primary-light);
    color: var(--primary);
}

.notification-content h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--dark);
}

.notification-content p {
    font-size: 0.9rem;
    color: var(--gray);
}