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

:root {
    --primary-color: #00D9FF;
    --primary-dark: #00B8D9;
    --bg-dark: #1A1A2E;
    --bg-darker: #16213E;
    --bg-card: #0F3460;
    --text-light: #E4E4E4;
    --text-muted: #A0A0A0;
    --danger: #E94560;
    --success: #00D9FF;
    --border-color: #2A2A3E;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
}

/* Flash messages */
.flash-messages {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.flash-message {
    padding: 12px 20px;
    margin-bottom: 10px;
    border-radius: 5px;
    color: white;
    font-weight: 500;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease-out;
}

.flash-success {
    background: var(--success);
}

.flash-error {
    background: var(--danger);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Login page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.login-box {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 28px;
}

.login-box h2 {
    color: var(--text-light);
    margin-bottom: 30px;
    font-size: 20px;
    font-weight: 400;
}

.login-note {
    margin-top: 20px;
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-light);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-control {
    width: 100%;
    padding: 12px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-light);
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 217, 255, 0.3);
}

.btn-secondary {
    background: var(--bg-darker);
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

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

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

.btn-danger:hover {
    background: #C73E54;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* Admin Panel */
.admin-container {
    min-height: 100vh;
    background: var(--bg-dark);
}

.admin-header {
    background: var(--bg-card);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
    color: var(--primary-color);
    font-size: 24px;
}

.admin-header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-user {
    color: var(--text-light);
    font-weight: 500;
}

/* Tabs */
.admin-tabs {
    background: var(--bg-darker);
    padding: 0 30px;
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-color);
}

.tab {
    padding: 15px 25px;
    background: transparent;
    color: var(--text-muted);
    text-decoration: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.tab:hover {
    color: var(--text-light);
    background: rgba(0, 217, 255, 0.1);
}

.tab.active {
    color: var(--primary-color);
    background: rgba(0, 217, 255, 0.15);
    border-bottom-color: var(--primary-color);
}

.admin-content {
    padding: 30px;
    max-width: 1400px;
    margin: 0 auto;
    transition: opacity 0.25s ease-out, transform 0.25s ease-out;
    will-change: opacity, transform;
}

/* Page headers */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h2 {
    color: var(--text-light);
    font-size: 24px;
}

/* Widgets page */
.widgets-list {
    display: grid;
    gap: 20px;
}

.widget-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 25px;
    border: 1px solid var(--border-color);
}

.widget-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.widget-card-header h3 {
    color: var(--text-light);
    font-size: 20px;
}

.widget-card-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.widget-status {
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.widget-status.active {
    background: rgba(0, 217, 255, 0.2);
    color: var(--primary-color);
}

.widget-status.expired {
    background: rgba(233, 69, 96, 0.2);
    color: var(--danger);
}

.widget-info {
    margin-bottom: 20px;
}

.widget-info p {
    margin-bottom: 8px;
    color: var(--text-light);
}

.widget-info code {
    background: var(--bg-darker);
    padding: 4px 8px;
    border-radius: 4px;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.widget-link {
    margin-bottom: 25px;
}

.widget-link label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-light);
    font-weight: 500;
}

.input-group {
    display: flex;
    gap: 10px;
}

.input-group input {
    flex: 1;
    padding: 10px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-light);
}

.widget-links-management h4 {
    color: var(--text-light);
    margin-bottom: 15px;
    font-size: 16px;
}

.add-link-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.link-tab-btn {
    padding: 8px 16px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-light);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
}

.link-tab-btn:hover {
    background: var(--border-color);
}

.link-tab-btn.active {
    background: var(--primary-color);
    color: var(--bg-dark);
    border-color: var(--primary-color);
}

.add-link-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.add-link-form select {
    width: 100%;
}

.add-link-bulk-form {
    margin-bottom: 20px;
}

.add-link-bulk-form textarea {
    width: 100%;
    margin-bottom: 10px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    resize: vertical;
}

.links-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.link-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: var(--bg-darker);
    border-radius: 5px;
    border: 1px solid var(--border-color);
}

.link-url {
    flex: 1;
    color: var(--text-light);
    word-break: break-all;
}

.link-date {
    color: var(--text-muted);
    font-size: 12px;
    white-space: nowrap;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

/* Tables */
.data-table {
    width: 100%;
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.data-table thead {
    background: var(--bg-darker);
}

.data-table th {
    padding: 15px;
    text-align: left;
    color: var(--text-light);
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-light);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background: rgba(0, 217, 255, 0.05);
}

.log-action {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.log-action.log-add {
    background: rgba(0, 217, 255, 0.2);
    color: var(--primary-color);
}

.log-action.log-delete {
    background: rgba(233, 69, 96, 0.2);
    color: var(--danger);
}

.log-url {
    max-width: 300px;
    word-break: break-all;
    font-size: 13px;
}

.text-muted {
    color: var(--text-muted);
    font-style: italic;
}

/* Дубликаты */
.duplicate-group {
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 15px;
}

.duplicate-url {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
    word-break: break-all;
}

.duplicate-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.duplicate-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-card);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.duplicate-item span {
    color: var(--text-light);
    font-size: 13px;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 11px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--bg-card);
    margin: 10% auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.modal-content h2 {
    color: var(--text-light);
    margin-bottom: 20px;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: var(--text-light);
}

.dashboard-welcome {
    text-align: center;
    padding: 60px 20px;
}

.dashboard-welcome h2 {
    color: var(--text-light);
    margin-bottom: 15px;
    font-size: 28px;
}

.dashboard-welcome p {
    color: var(--text-muted);
    font-size: 16px;
}