/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg: #f0f2f5;
    --color-surface: #ffffff;
    --color-primary: #0073ea;
    --color-primary-hover: #0060c2;
    --color-success: #00c875;
    --color-warning: #fdab3d;
    --color-danger: #e2445c;
    --color-text: #323338;
    --color-text-secondary: #676879;
    --color-border: #e6e9ef;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
}

.hidden { display: none !important; }

/* Login Screen */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    background: var(--color-surface);
    border-radius: 16px;
    padding: 48px;
    text-align: center;
    max-width: 420px;
    width: 90%;
    box-shadow: var(--shadow-lg);
}

.login-icon {
    color: var(--color-primary);
    margin-bottom: 16px;
}

.login-card h1 {
    font-size: 22px;
    margin-bottom: 12px;
}

.login-card p {
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    font-size: 14px;
}

/* Form inputs */
.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    background: var(--color-surface);
    margin-bottom: 12px;
}

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

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

#login-form { text-align: left; }

.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    padding: 12px 28px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

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

.btn-primary:hover { background: var(--color-primary-hover); }
.btn-primary:disabled { background: #c3c6d4; cursor: not-allowed; }

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

.btn-secondary:hover { background: #e6e9ef; }

.btn-accent {
    background: #00c875;
    color: white;
    border: none;
}

.btn-accent:hover { background: #00a85e; }
.btn-accent:disabled { background: #c3c6d4; cursor: not-allowed; }

.btn-sm { padding: 4px 12px; font-size: 13px; }

.refresh-timestamps {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 12px;
}

.timestamp-sep { color: var(--color-border); }

/* Header */
.header {
    background: var(--color-surface);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.header h1 { font-size: 18px; font-weight: 600; }
.header-right { display: flex; align-items: center; gap: 12px; }
.user-name { font-size: 14px; color: var(--color-text-secondary); }

/* Controls */
.controls {
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.last-refresh {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.loading {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-primary);
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.icon-refresh { transition: transform 0.3s; }
.btn-primary:not(:disabled):hover .icon-refresh { transform: rotate(180deg); }

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    padding: 0 24px 16px;
}

.card {
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.15s;
}

.card:hover { transform: translateY(-2px); }
.card-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--color-text-secondary); margin-bottom: 8px; }
.card-values { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.card-old { color: var(--color-text-secondary); }
.card-separator { color: var(--color-border); margin: 0 4px; }
.card-new { color: var(--color-text); }

.card-bar {
    height: 6px;
    background: var(--color-bg);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
}

.card-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease, background-color 0.3s;
    width: 0%;
}

.card-percent { font-size: 13px; font-weight: 600; }

/* Status colors */
.status-match { color: var(--color-success); }
.status-partial { color: var(--color-warning); }
.status-mismatch { color: var(--color-danger); }
.bar-match { background: var(--color-success); }
.bar-partial { background: var(--color-warning); }
.bar-mismatch { background: var(--color-danger); }

/* Legend */
.legend {
    padding: 0 24px 16px;
    font-size: 12px;
    color: var(--color-text-secondary);
    display: flex;
    gap: 8px;
}

/* Tables */
.table-section {
    padding: 0 24px 24px;
}

.table-section h2 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.table-controls {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.search-input, .filter-select {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
    background: var(--color-surface);
}

.search-input { min-width: 200px; }
.search-input:focus, .filter-select:focus { outline: none; border-color: var(--color-primary); }

.table-wrapper {
    overflow-x: auto;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th {
    background: #f6f7fb;
    padding: 10px 14px;
    text-align: center;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--color-text-secondary);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.data-table td {
    padding: 10px 14px;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.text-left { text-align: left !important; }

/* Sortable headers */
.sortable { cursor: pointer; user-select: none; }
.sortable:hover { background: #ecedf2; }

.sort-indicator {
    font-size: 10px;
    margin-left: 4px;
    color: var(--color-primary);
}

.data-table tbody tr:hover { background: #f6f7fb; }
.data-table tbody tr:last-child td { border-bottom: none; }

.empty-state {
    text-align: center;
    color: var(--color-text-secondary);
    padding: 40px 14px !important;
}

/* Status badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-match { background: #e6fff3; color: #00854d; }
.badge-partial { background: #fff3e0; color: #b86e00; }
.badge-mismatch { background: #ffe5e9; color: #c4314b; }
.badge-missing { background: #ffe5e9; color: #c4314b; }
.badge-extra { background: #e8f4fd; color: #0060c2; }

/* Numeric cell alignment */
.num { font-variant-numeric: tabular-nums; }
.diff-positive { color: var(--color-success); font-weight: 600; }
.diff-negative { color: var(--color-danger); font-weight: 600; }
.diff-zero { color: var(--color-text-secondary); }

/* Error banner */
.error-banner {
    margin: 16px 24px;
    padding: 12px 16px;
    background: #ffe5e9;
    border: 1px solid var(--color-danger);
    border-radius: var(--radius);
    color: #c4314b;
    font-size: 14px;
}

/* Progress bar */
.progress-bar-container {
    margin: 0 24px 16px;
    padding: 12px 16px;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--color-primary);
}

.progress-status {
    font-size: 13px;
    color: var(--color-text);
    font-weight: 500;
}

/* Access denied */
.denied-icon { color: var(--color-danger); }

/* Login error */
.login-error {
    margin-top: 16px;
    padding: 8px 12px;
    background: #ffe5e9;
    border-radius: var(--radius);
    color: #c4314b;
    font-size: 13px;
}

/* Admin panel */
.admin-add-user {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.admin-add-user .form-input { flex: 1; min-width: 150px; margin-bottom: 0; }

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    white-space: nowrap;
}

.actions-cell { white-space: nowrap; }
.actions-cell .btn { margin-right: 4px; }

.btn-danger {
    background: var(--color-danger);
    color: white;
    border: none;
}

.btn-danger:hover { background: #c4314b; }

/* Responsive */
@media (max-width: 768px) {
    .header { flex-direction: column; gap: 8px; }
    .controls { flex-wrap: wrap; }
    .summary-cards { grid-template-columns: repeat(2, 1fr); }
    .admin-add-user { flex-direction: column; }
}