/* ============= Global Styles ============= */

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

:root {
    --color-primary: #2563eb;
    --color-secondary: #64748b;
    --color-success: #16a34a;
    --color-danger: #dc2626;
    --color-warning: #ea580c;
    --color-light: #f1f5f9;
    --color-border: #e2e8f0;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --radius: 0.5rem;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--color-text);
    background-color: #f8fafc;
    line-height: 1.6;
}

/* ============= Header ============= */

.app-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 100%);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.app-header h1 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
}

/* ============= Navigation ============= */

.app-nav {
    background: white;
    border-bottom: 1px solid var(--color-border);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    max-width: 100%;
}

.app-nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-md) 0;
    margin: 0;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    transition: all 0.3s ease;
}

.nav-link:hover {
    background: var(--color-light);
    color: var(--color-primary);
}

/* ============= Main Content ============= */

.app-main {
    max-width: 1200px;
    margin: var(--spacing-lg) auto;
    padding: 0 var(--spacing-lg);
    min-height: 60vh;
}

/* ============= Dashboard ============= */

.dashboard {
    display: grid;
    gap: var(--spacing-xl);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 1.25rem;
    color: var(--color-text);
}

/* ============= Accounts Table ============= */

.accounts-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.accounts-table thead th {
    background: var(--color-light);
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border);
}

.accounts-table tbody tr {
    border-bottom: 1px solid var(--color-border);
    transition: background 0.15s;
}

.accounts-table tbody tr:last-child {
    border-bottom: none;
}

.accounts-table tbody tr:hover {
    background: #f8fafc;
}

.accounts-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    vertical-align: middle;
}

.col-check { width: 2rem; text-align: center; }
.col-status { width: 2rem; text-align: center; }
.col-arrow { width: 1.5rem; color: var(--color-text-light); text-align: center; }
.col-sync { font-size: 0.8rem; color: var(--color-text-light); white-space: nowrap; min-width: 10rem; }
.col-actions { white-space: nowrap; }

/* ============= Sync Spinner ============= */

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

.sync-spinner {
    display: inline-block;
    width: 0.9rem;
    height: 0.9rem;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    vertical-align: middle;
}

.email-addr { font-size: 0.875rem; font-weight: 500; }
.imap-server { font-size: 0.75rem; color: var(--color-text-light); }

.conn-icon { font-weight: 700; }
.conn-icon.ok { color: var(--color-success); }
.conn-icon.error { color: var(--color-danger); }
.conn-icon.unknown { color: var(--color-secondary); }

.badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}
.badge-completed { background: #dcfce7; color: #166534; }
.badge-failed { background: #fee2e2; color: #991b1b; }
.badge-running { background: #dbeafe; color: #1e40af; }

/* ============= Login Page ============= */

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 100%);
}

.login-card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 380px;
}

.login-card h1 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.login-subtitle {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: 0.875rem;
}

/* ============= Account Card ============= */

.account-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.account-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.account-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
}

.account-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.account-card-name {
    color: var(--color-primary);
    font-weight: 600;
}

.account-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
}

.account-status.ok {
    background: #dcfce7;
    color: var(--color-success);
}

.account-status.error {
    background: #fee2e2;
    color: var(--color-danger);
}

.account-status.unknown {
    background: #fef3c7;
    color: var(--color-warning);
}

.account-info {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.account-info p {
    margin-bottom: var(--spacing-sm);
}

.account-info strong {
    color: var(--color-text);
}

.account-info-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.account-info-table tr {
    border-bottom: 1px solid var(--color-border);
}

.account-info-table tr:last-child {
    border-bottom: none;
}

.account-info-table td {
    padding: var(--spacing-xs) var(--spacing-sm);
    vertical-align: middle;
}

.account-info-table .info-label {
    color: var(--color-text-light);
    font-weight: 600;
    white-space: nowrap;
    width: 6rem;
}

.account-info-table .info-server {
    color: var(--color-text-light);
    font-size: 0.8rem;
    text-align: right;
}

.account-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============= Buttons ============= */

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

.btn-primary:hover {
    background: #1d4ed8;
}

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

.btn-secondary:hover {
    background: #475569;
}

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

.btn-success:hover {
    background: #15803d;
}

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

.btn-danger:hover {
    background: #b91c1c;
}

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

.btn-warning:hover {
    background: #c2410c;
}

.btn-cancel {
    background: var(--color-border);
    color: var(--color-text);
}

.btn-cancel:hover {
    background: #cbd5e1;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
}

.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
}

/* ============= Forms ============= */

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

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group small {
    display: block;
    margin-top: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: 0.8rem;
}

fieldset {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

legend {
    padding: 0 var(--spacing-sm);
    font-weight: 600;
    color: var(--color-primary);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/* ============= Modal ============= */

.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: var(--spacing-xl);
    border-radius: var(--radius);
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal-content.modal-large {
    max-width: 800px;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h2 {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.close-btn {
    color: var(--color-text-light);
    float: right;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

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

/* ============= Alerts ============= */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-lg);
}

.alert-success {
    background: #dcfce7;
    color: var(--color-success);
    border: 1px solid #86efac;
}

.alert-error {
    background: #fee2e2;
    color: var(--color-danger);
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: #fef3c7;
    color: var(--color-warning);
    border: 1px solid #fcd34d;
}

.alert-info {
    background: #dbeafe;
    color: #0284c7;
    border: 1px solid #7dd3fc;
}

/* ============= Loading ============= */

.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-light);
}

.loading::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-border);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 0.8s linear infinite;
}

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

/* ============= Folders List ============= */

.folders-list {
    background: var(--color-light);
    border-radius: var(--radius);
    padding: var(--spacing-md);
}

.folder-item {
    padding: var(--spacing-md);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.folder-info {
    flex: 1;
}

.folder-name {
    font-weight: 500;
    color: var(--color-text);
}

.folder-stats {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* ============= Logs List ============= */

.logs-list {
    background: var(--color-light);
    border-radius: var(--radius);
    padding: var(--spacing-md);
}

.log-entry {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.log-entry:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow);
}

.log-entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.log-entry-time {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.log-entry-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    font-size: 0.75rem;
    font-weight: 600;
}

.log-entry-status.completed {
    background: #dcfce7;
    color: var(--color-success);
}

.log-entry-status.failed {
    background: #fee2e2;
    color: var(--color-danger);
}

.log-entry-status.running {
    background: #dbeafe;
    color: #0284c7;
}

.log-content {
    background: #1e293b;
    color: #e2e8f0;
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
}

.log-content pre {
    margin: 0;
}

.log-info {
    background: var(--color-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-lg);
}

.log-info p {
    margin-bottom: var(--spacing-sm);
}

.log-info strong {
    color: var(--color-primary);
}

/* ============= Footer ============= */

.app-footer {
    background: #1e293b;
    color: white;
    text-align: center;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    font-size: 0.875rem;
}

/* ============= Utilities ============= */

.hidden {
    display: none !important;
}

.info {
    padding: var(--spacing-md);
    background: #dbeafe;
    color: #0284c7;
    border-radius: var(--radius);
    border-left: 4px solid #0284c7;
}

/* ============= Responsive ============= */

@media (max-width: 768px) {
    .app-header h1 {
        font-size: 1.5rem;
    }

    .app-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .accounts-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        margin: 20% auto;
        width: 90%;
    }

    .account-actions {
        flex-direction: column;
    }

    .account-actions .btn {
        width: 100%;
        justify-content: center;
    }
}