/* ==========================================================================
   MajorMatch Admin — Dark Theme
   ========================================================================== */

:root {
    --bg: #0f0a1a;
    --surface: rgba(255, 255, 255, 0.05);
    --surface-border: rgba(255, 255, 255, 0.1);
    --surface-hover: rgba(255, 255, 255, 0.08);
    --primary: #a855f7;
    --primary-bg: rgba(168, 85, 247, 0.15);
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.15);
    --error: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.15);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.15);
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --radius: 0.75rem;
    --radius-lg: 1rem;
}

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

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

/* Layout */
.dashboard {
    max-width: 56rem;
    margin: 0 auto;
    padding: 2rem 1.5rem 5rem;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.header-title {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--surface-border);
    margin-bottom: 1.5rem;
}

.tab {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

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

/* Panel */
.panel {
    border: 1px solid var(--surface-border);
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    backdrop-filter: blur(8px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid var(--surface-border);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover { opacity: 0.9; }

.btn-ghost {
    background: var(--surface);
    color: var(--text);
    border-color: var(--surface-border);
}
.btn-ghost:hover { background: var(--surface-hover); }

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Inputs */
.input {
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}
.input::placeholder { color: var(--text-muted); }
.input:focus { border-color: var(--primary); }

.input-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}

/* Login */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 22rem;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    backdrop-filter: blur(8px);
}

.login-title {
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 0.25rem;
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 1.5rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}
.alert-error {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Tables */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--surface-border);
}

.table {
    width: 100%;
    font-size: 0.875rem;
    border-collapse: collapse;
}

.table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--surface);
    border-bottom: 1px solid var(--surface-border);
}

.table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--surface-border);
    color: var(--text);
}

.table tbody tr:hover { background: var(--surface-hover); }
.table tbody tr:last-child td { border-bottom: none; }

.row-highlighted {
    background: var(--primary-bg) !important;
}
.row-highlighted:hover {
    background: rgba(168, 85, 247, 0.1) !important;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1.4;
    white-space: nowrap;
}

.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-error   { background: var(--error-bg); color: var(--error); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-muted   { background: var(--surface); color: var(--text-muted); }

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    border: 1px solid;
}
.tag-primary { background: var(--primary-bg); border-color: rgba(168, 85, 247, 0.3); color: var(--text); }
.tag-success { background: var(--success-bg); border-color: rgba(34, 197, 94, 0.3); color: var(--success); }
.tag-error   { background: var(--error-bg); border-color: rgba(239, 68, 68, 0.3); color: var(--error); }

/* Stat cards */
.stat-cards {
    display: flex;
    gap: 1rem;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
}

.stat-card-success {
    background: var(--success-bg);
    border-color: rgba(34, 197, 94, 0.3);
}

.stat-card-warning {
    background: var(--warning-bg);
    border-color: rgba(245, 158, 11, 0.3);
}

.stat-label {
    display: block;
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.stat-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

.stat-value-success { color: var(--success); }
.stat-value-warning { color: var(--warning); }

/* Usage controls */
.usage-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.day-buttons {
    display: flex;
    gap: 0.25rem;
}

/* Chart */
.chart-container {
    position: relative;
    height: 300px;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.02);
    padding: 1rem;
}

/* Sessions controls */
.sessions-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sessions-controls-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
    color: var(--text-secondary);
}

.checkbox-label input {
    accent-color: var(--primary);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 50;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    padding: 1rem;
}

.modal-overlay.open { display: flex; }

.modal-content {
    background: #1a1025;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    max-width: 64rem;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Session detail */
.session-detail { display: flex; flex-direction: column; }

.session-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--surface-border);
    flex-shrink: 0;
}

.session-detail-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.session-detail-body {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-section h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
    gap: 1rem;
}

.detail-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    padding: 0.75rem;
}

.detail-card-success {
    background: var(--success-bg);
    border-color: rgba(34, 197, 94, 0.3);
}

.detail-label {
    display: block;
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 0.8125rem;
    word-break: break-all;
}

/* Answer items */
.answer-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.answer-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    border: 1px solid;
}

.answer-accepted  { background: var(--success-bg); border-color: rgba(34, 197, 94, 0.3); }
.answer-rejected  { background: var(--error-bg); border-color: rgba(239, 68, 68, 0.3); }
.answer-neutral   { background: var(--surface); border-color: var(--surface-border); }

.answer-icon { font-size: 1.125rem; line-height: 1; }
.answer-accepted .answer-icon { color: var(--success); }
.answer-rejected .answer-icon { color: var(--error); }

/* Option pills (Game 2) */
.option-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    background: var(--surface);
    color: var(--text-muted);
}
.option-selected {
    background: var(--primary-bg);
    color: var(--primary);
}

/* Cluster tags */
.cluster-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Keywords */
.keyword-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.5rem;
}

.keyword {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--surface-border);
}

/* Major row (stage 2 detail) */
.major-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    background: rgba(255, 255, 255, 0.02);
}

.confidence-bar-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 7rem;
}

.confidence-bar {
    flex: 1;
    height: 0.5rem;
    background: var(--surface);
    border-radius: 9999px;
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    border-radius: 9999px;
}

.confidence-high { background: var(--success); }
.confidence-mid  { background: var(--warning); }
.confidence-low  { background: var(--error); }

/* Utility classes */
.text-muted      { color: var(--text-muted); }
.text-secondary  { color: var(--text-secondary); }
.text-primary    { color: var(--primary); }
.text-success    { color: var(--success); }
.text-error      { color: var(--error); }
.text-center     { text-align: center; }
.text-xs         { font-size: 0.75rem; }
.text-sm         { font-size: 0.875rem; }
.font-medium     { font-weight: 500; }
.mono            { font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace; }

/* Responsive */
@media (max-width: 640px) {
    .dashboard { padding: 1rem 0.75rem 3rem; }
    .header-title { font-size: 1.25rem; }
    .panel { padding: 1rem; }

    /* Tabs: horizontal scroll */
    .tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; gap: 0; }
    .tab { white-space: nowrap; flex-shrink: 0; padding: 0.5rem 0.75rem; }

    /* Stat cards: 2x2 grid */
    .stat-cards { display: grid; grid-template-columns: 1fr 1fr; }

    /* Usage controls: stack vertically */
    .usage-controls { flex-direction: column; align-items: stretch; }
    .day-buttons { justify-content: flex-end; }
    .chart-container { height: 220px; padding: 0.5rem; }

    /* Sessions */
    .sessions-controls { flex-direction: column; align-items: flex-start; }
    .sessions-controls-right { flex-wrap: wrap; }

    /* Hide less-important table columns on mobile */
    .table .hide-mobile { display: none; }

    /* Tables: smaller text + padding */
    .table th, .table td { padding: 0.5rem 0.5rem; font-size: 0.8125rem; }

    /* Modal: full screen on mobile */
    .modal-overlay { padding: 0; align-items: stretch; }
    .modal-content { max-width: 100%; max-height: 100vh; border-radius: 0; height: 100vh; }
    .session-detail { max-height: 100vh; }
    .session-detail-header { padding: 1rem; }
    .session-detail-header h2 { font-size: 1rem; }
    .session-detail-body { padding: 1rem; gap: 1.5rem; }

    /* Detail grid: single column */
    .detail-grid { grid-template-columns: 1fr; }

    /* Major row: wrap on mobile */
    .major-row { flex-wrap: wrap; gap: 0.5rem; }
    .confidence-bar-wrap { width: 100%; }

    /* Pagination */
    .pagination { gap: 0.5rem; }
    .pagination .btn { padding: 0.375rem 0.625rem; font-size: 0.8125rem; }

    /* Feedback table */
    .table .hide-mobile-sm { display: none; }
}