/* MTS AI Dashboard v2 — Business Analytics */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

:root {
    --mts-red: #E30611;
    --mts-red-light: #FEF2F2;
    --bg: #F8FAFC;
    --card: #FFFFFF;
    --border: #E2E8F0;
    --text: #0F172A;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --green: #22C55E;
    --green-bg: #F0FDF4;
    --amber: #F59E0B;
    --amber-bg: #FFFBEB;
    --red-soft: #EF4444;
    --blue: #3B82F6;
    --sidebar-bg: #0F172A;
    --sidebar-text: #94A3B8;
    --sidebar-active: #FFFFFF;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
}

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

/* ═══ Sidebar ═══ */
.sidebar {
    width: 220px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 50;
}

.sidebar-brand {
    padding: 24px 20px 20px;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 8px;
}

.sidebar-footer {
    padding: 8px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}
.nav-item:hover { background: rgba(255,255,255,0.06); color: #fff; }
.nav-item.active { background: rgba(255,255,255,0.1); color: #fff; }

.badge {
    background: var(--mts-red);
    color: #fff;
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 11px;
    font-weight: 600;
    margin-left: auto;
}

/* ═══ Main Content ═══ */
.content {
    flex: 1;
    margin-left: 220px;
    padding: 32px 40px;
    max-width: 1200px;
}

/* ═══ Executive Summary ═══ */
.executive h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.kpi-card {
    background: var(--card);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.kpi-card.kpi-primary {
    border-left: 4px solid var(--mts-red);
}
.kpi-card.kpi-good { border-left: 4px solid var(--green); }
.kpi-card.kpi-warn { border-left: 4px solid var(--amber); }
.kpi-card.kpi-bad { border-left: 4px solid var(--red-soft); }

.kpi-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.1;
}
.kpi-unit { font-size: 18px; font-weight: 500; color: var(--text-secondary); }
.kpi-label { font-size: 13px; color: var(--text-secondary); margin-top: 6px; font-weight: 500; }
.kpi-sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ═══ Section Groups ═══ */
.section-group {
    margin-bottom: 40px;
}
.section-group h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

/* ═══ Charts ═══ */
.chart-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.chart-row .wide { grid-column: 1 / -1; }

.chart-card {
    background: var(--card);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.chart-card h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* ═══ Value Cards ═══ */
.value-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.value-card {
    background: var(--card);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
}
.value-icon {
    font-size: 28px;
    margin-bottom: 8px;
}
.value-icon.good { color: var(--green); }
.value-icon.neutral { color: var(--blue); }
.value-icon.info { color: var(--text-muted); }
.value-stat {
    font-size: 28px;
    font-weight: 700;
}
.value-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ═══ Tables ═══ */
.table-card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}

table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead { background: #F8FAFC; }
th {
    padding: 10px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 10px 16px;
    border-bottom: 1px solid #F1F5F9;
}
tr:last-child td { border-bottom: none; }
tr:hover { background: #FAFBFC; }

.text-preview {
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.muted { color: var(--text-muted); }

.corr-badge {
    display: inline-block;
    background: var(--mts-red-light);
    color: var(--mts-red);
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 12px;
}

.mini-table {
    background: var(--card);
    padding: 20px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.mini-table h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* ═══ Alert Box ═══ */
.alert-box {
    background: var(--amber-bg);
    border: 1px solid #FDE68A;
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-top: 16px;
    font-size: 13px;
}
.alert-box strong { color: #92400E; }
.chip {
    display: inline-block;
    background: #FEF3C7;
    color: #92400E;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    margin: 4px 4px 0 0;
}

/* ═══ Feedback List (in dashboard) ═══ */
.feedback-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 350px;
    overflow-y: auto;
}
.fb-item {
    padding: 10px 0;
    border-bottom: 1px solid #F1F5F9;
}
.fb-item:last-child { border-bottom: none; }
.fb-top {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
}
.fb-score {
    display: inline-block;
    width: 24px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    border-radius: 6px;
    font-weight: 700;
    font-size: 12px;
    color: #fff;
}
.fb-score.good { background: var(--green); }
.fb-score.mid { background: var(--amber); }
.fb-score.bad { background: var(--red-soft); }
.fb-user { font-weight: 500; color: var(--text); }
.fb-comment { font-size: 13px; color: var(--text); margin-top: 4px; }

/* ═══ Login Page ═══ */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
}
.login-box {
    background: var(--card);
    padding: 48px 40px;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    text-align: center;
    width: 380px;
    border: 1px solid var(--border);
}
.login-box h1 { font-size: 22px; margin-bottom: 4px; }
.login-subtitle { color: var(--text-secondary); font-size: 14px; margin-bottom: 28px; }
.login-box input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    margin-bottom: 12px;
    background: var(--bg);
}
.login-box input:focus { outline: none; border-color: var(--mts-red); background: #fff; }
.login-box button {
    width: 100%;
    padding: 12px;
    background: var(--mts-red);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s;
}
.login-box button:hover { background: #C70510; }

.alert-error {
    background: var(--mts-red-light);
    color: #B91C1C;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
}

/* ═══ Feedback Page ═══ */
h1.page-title { font-size: 20px; margin-bottom: 20px; }

.feedback-card {
    background: var(--card);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 12px;
    border-left: 4px solid var(--border);
}
.feedback-card.status-new { border-left-color: var(--mts-red); }
.feedback-card.status-reviewed { border-left-color: var(--amber); }
.feedback-card.status-resolved { border-left-color: var(--green); }

.feedback-header {
    display: flex;
    gap: 12px;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.feedback-id { font-weight: 600; color: var(--text); }
.feedback-status {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}
.status-new .feedback-status { background: var(--mts-red-light); color: #B91C1C; }
.status-reviewed .feedback-status { background: var(--amber-bg); color: #B45309; }
.status-resolved .feedback-status { background: var(--green-bg); color: #166534; }

.feedback-comment p { margin-top: 4px; font-size: 14px; }
.feedback-context { margin-top: 10px; }
.feedback-context summary { cursor: pointer; font-size: 13px; color: var(--text-secondary); }
.context-block { margin-top: 8px; }
.context-block pre {
    background: var(--bg);
    padding: 12px;
    border-radius: 8px;
    font-size: 12px;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border);
}

.feedback-actions { margin-top: 12px; display: flex; gap: 8px; }
.btn {
    padding: 7px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    background: var(--card);
    color: var(--text);
    transition: all 0.15s;
}
.btn:hover { background: var(--bg); }
.btn-review { background: var(--bg); }
.btn-resolve { background: var(--green-bg); color: #166534; border-color: #BBF7D0; }
.btn-resolve:hover { background: #DCFCE7; }

.empty { color: var(--text-muted); font-style: italic; padding: 24px; text-align: center; }

/* ═══ Users Page ═══ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--card);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
}
.stat-value { font-size: 28px; font-weight: 700; }
.stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.section {
    background: var(--card);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 16px;
}
.section h2 { font-size: 16px; margin-bottom: 12px; }

.score-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}
.score-good { background: var(--green-bg); color: #166534; }
.score-mid { background: var(--amber-bg); color: #854D0E; }
.score-bad { background: var(--mts-red-light); color: #B91C1C; }

/* Topnav (for users/feedback pages) */
.topnav {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-left strong { font-size: 16px; }
.nav-right { display: flex; gap: 16px; align-items: center; }
.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 6px 10px;
    border-radius: 6px;
    font-weight: 500;
}
.nav-link:hover { color: var(--text); background: var(--bg); }
.nav-link.active { color: var(--mts-red); font-weight: 600; }

/* ═══ Category Bars ═══ */
.category-bars { display: flex; flex-direction: column; gap: 12px; }
.cat-row { display: flex; align-items: center; gap: 12px; }
.cat-name { width: 120px; font-size: 14px; font-weight: 600; color: var(--text); flex-shrink: 0; }
.cat-bar-track { flex: 1; height: 28px; background: var(--bg); border-radius: 6px; overflow: hidden; }
.cat-bar-fill { height: 100%; background: var(--mts-red); border-radius: 6px; transition: width 0.4s ease; }
.cat-count { width: 90px; font-size: 13px; color: var(--text-secondary); text-align: right; flex-shrink: 0; }
.cat-pct { color: var(--text-muted); }

.compact-table { font-size: 12px; }
.compact-table th { font-size: 11px; padding: 8px 6px; }
.compact-table td { padding: 8px 6px; text-align: center; }
.compact-table td:first-child { text-align: left; }

/* ═══ Mobile ═══ */
@media (max-width: 900px) {
    .sidebar { display: none; }
    .content { margin-left: 0; padding: 20px 16px; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .chart-row { grid-template-columns: 1fr; }
    .value-cards { grid-template-columns: 1fr; }
    .two-col { grid-template-columns: 1fr; }
    table { font-size: 12px; }
    th, td { padding: 8px 10px; }
}