:root {
    --sidebar-width: 270px;
    --green-dark: #064E3B;
    --green-mid: #0E9F6E;
    --green-soft: #68DBA9;
    --green-pale: #85F8C4;
    --green-pale-bg: #ECFDF5;
    --sidebar-bg: var(--green-dark);
    --sidebar-bg-soft: #0B6B52;
    --sidebar-text: #A7D9C9;
    --sidebar-text-active: #FFFFFF;
    --bg: #F1F5F3;
    --card-bg: #FFFFFF;
    --border: #E5E7EB;
    --text-main: #111827;
    --text-muted: #6B7280;
    --warn: #F59E0B;
    --danger: #EF4444;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px rgba(6, 78, 59, 0.06), 0 1px 3px rgba(6, 78, 59, 0.08);
    --shadow-md: 0 8px 20px rgba(6, 78, 59, 0.10), 0 2px 6px rgba(6, 78, 59, 0.08);
}

* { box-sizing: border-box; }

body {
    background-color: var(--bg);
    color: var(--text-main);
    font-family: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* ---------------------------------- Sidebar ---------------------------------- */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--sidebar-bg);
    padding: 1.5rem 1.1rem;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.4rem 0.4rem 1.4rem 0.4rem;
    margin-bottom: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand .brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--green-soft), var(--green-pale));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.sidebar-brand .brand-title {
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
    line-height: 1.2;
    margin: 0;
}

.sidebar-brand .brand-subtitle {
    color: var(--sidebar-text);
    font-size: 0.73rem;
    margin: 0;
}

.sidebar .nav {
    flex: 1;
}

.sidebar .nav-link {
    color: var(--sidebar-text);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 0.62rem 0.85rem 0.62rem 0.75rem;
    margin-bottom: 3px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    border-left: 3px solid transparent;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.sidebar .nav-link i {
    font-size: 1rem;
    width: 18px;
    text-align: center;
}

.sidebar .nav-link:hover {
    background-color: var(--sidebar-bg-soft);
    color: #fff;
}

.sidebar .nav-link.active {
    background-color: var(--sidebar-bg-soft);
    color: #fff;
    font-weight: 600;
    border-left-color: var(--green-pale);
}

.sidebar-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    margin-top: 1rem;
}

.sidebar-footer .footer-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.76rem;
    color: var(--sidebar-text);
    margin-bottom: 0.5rem;
}

.sidebar-footer .footer-item strong {
    color: #fff;
    font-weight: 600;
}

.badge-model {
    background: rgba(133, 248, 196, 0.18);
    color: var(--green-pale);
    padding: 0.18rem 0.6rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
}

/* ---------------------------------- Content / Topbar ---------------------------------- */
.content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    min-height: 100vh;
    padding: 0 !important;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2.25rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
}

.topbar .breadcrumb-text {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.topbar .breadcrumb-text strong {
    color: var(--text-main);
}

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

.topbar .topbar-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.topbar .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--green-mid), var(--green-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.page-body {
    padding: 1.75rem 2.25rem 2.5rem 2.25rem;
}

.page-header-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.6rem 1.9rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.page-header-card::before {
    content: "";
    position: absolute;
    top: 0; right: 0;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, var(--green-pale-bg) 0%, transparent 70%);
    opacity: 0.9;
}

.page-header-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--green-mid);
    margin-bottom: 0.35rem;
    position: relative;
}

.page-header-card h2 {
    margin: 0 0 0.4rem 0;
    font-weight: 800;
    font-size: 1.55rem;
    color: var(--text-main);
    position: relative;
}

.page-header-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.92rem;
    max-width: 750px;
    position: relative;
}

/* ---------------------------------- Cards ---------------------------------- */
.metric-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.35rem;
    box-shadow: var(--shadow-sm);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.metric-card::after {
    content: "";
    position: absolute;
    left: 0; bottom: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--green-mid), var(--green-pale));
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.metric-card .metric-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.metric-card .metric-icon {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: var(--green-pale-bg);
    color: var(--green-mid);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.metric-card .metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.2rem;
}

.metric-card .metric-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.chart-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem 1.2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.chart-box-title {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text-main);
    margin-bottom: 0.2rem;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem 1.75rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.section-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-top: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.section-title i {
    color: var(--green-mid);
}

.section-caption {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* ---------------------------------- Insight list ---------------------------------- */
.insight-item {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1.1rem;
    margin-bottom: 0.6rem;
    box-shadow: var(--shadow-sm);
}

.insight-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--green-pale-bg);
    color: var(--green-dark);
    font-weight: 800;
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.insight-text {
    font-size: 0.9rem;
    color: var(--text-main);
    line-height: 1.55;
}

/* ---------------------------------- Progress bars (comparison) ---------------------------------- */
.progress-row {
    margin-bottom: 1.1rem;
}

.progress-row .progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.4rem;
}

.progress-row .progress-label span.value {
    color: var(--green-mid);
    font-weight: 700;
}

.progress-track {
    background: var(--bg);
    border-radius: 999px;
    height: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--green-dark), var(--green-mid));
}

.progress-fill.warn { background: linear-gradient(90deg, #B45309, var(--warn)); }

/* ---------------------------------- Status list ---------------------------------- */
.status-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--green-pale-bg);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    margin-bottom: 0.6rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--green-mid);
    flex-shrink: 0;
}

.status-dot.warn { background: var(--warn); }
.status-dot.danger { background: var(--danger); }

/* ---------------------------------- Tables ---------------------------------- */
.table-responsive {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: var(--shadow-sm);
}

table.dataframe, table.table {
    font-size: 0.85rem;
    margin-bottom: 0;
    width: 100%;
}

table.dataframe thead, table.table thead {
    background-color: #F9FAFB;
}

table.dataframe th, table.table th,
table.dataframe td, table.table td {
    /* pandas .to_html() hardcodes text-align on <thead><tr> and <th> row
       labels; force every cell in the same column to line up regardless. */
    text-align: left !important;
    padding: 0.55rem 0.9rem !important;
    white-space: nowrap;
    vertical-align: middle;
}

table.dataframe th, table.table th {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--border) !important;
}

table.dataframe tbody th {
    color: var(--text-main);
    font-weight: 500;
    text-transform: none;
    font-size: 0.85rem;
    letter-spacing: normal;
}

table.dataframe tbody tr:hover, table.table tbody tr:hover {
    background-color: var(--green-pale-bg);
}

/* ---------------------------------- Buttons & Forms ---------------------------------- */
.btn-primary {
    background-color: var(--green-mid);
    border-color: var(--green-mid);
    border-radius: var(--radius-sm);
    font-weight: 600;
    padding: 0.55rem 1.3rem;
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--green-dark);
    border-color: var(--green-dark);
}

.btn-outline-primary, .btn-outline-secondary {
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.btn-outline-primary {
    color: var(--green-mid);
    border-color: var(--green-mid);
}

.btn-outline-primary:hover {
    background-color: var(--green-mid);
    border-color: var(--green-mid);
}

.form-control, .form-select {
    border-radius: var(--radius-sm);
    border-color: var(--border);
    padding: 0.55rem 0.85rem;
    font-size: 0.9rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--green-mid);
    box-shadow: 0 0 0 0.2rem rgba(14, 159, 110, 0.15);
}

.form-label {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text-main);
    margin-bottom: 0.3rem;
}

/* ---------------------------------- Tabs ---------------------------------- */
.nav-tabs {
    border-bottom: 1px solid var(--border);
}

.nav-tabs .nav-link {
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.7rem 1.1rem;
    border-radius: 0;
}

.nav-tabs .nav-link.active {
    color: var(--green-mid);
    background: transparent;
    border-bottom: 2.5px solid var(--green-mid);
}

.tab-content {
    border-radius: 0 0 var(--radius) var(--radius) !important;
    box-shadow: var(--shadow-sm);
    border-color: var(--border) !important;
}

/* ---------------------------------- Alerts ---------------------------------- */
.alert {
    border-radius: 12px;
    border: none;
    border-left: 4px solid transparent;
    font-size: 0.9rem;
}

.alert-success { background-color: #ECFDF5; border-left-color: var(--green-mid); color: #065F46; }
.alert-danger { background-color: #FEF2F2; border-left-color: var(--danger); color: #991B1B; }
.alert-warning { background-color: #FFFBEB; border-left-color: var(--warn); color: #92400E; }
.alert-info { background-color: #EFF6FF; border-left-color: #3B82F6; color: #1E3A8A; }

/* ---------------------------------- Misc ---------------------------------- */
code {
    background-color: var(--green-pale-bg);
    color: var(--green-dark);
    padding: 0.1rem 0.4rem;
    border-radius: 6px;
    font-size: 0.85em;
}

pre {
    border-radius: var(--radius) !important;
    border: 1px solid var(--border);
}

hr {
    border-color: var(--border);
    opacity: 1;
}

ol li, ul li {
    margin-bottom: 0.5rem;
}

/* ---------------------------------- Responsive (mobile/tablet) ---------------------------------- */
.sidebar-toggle {
    display: none;
    border: none;
    background: var(--bg);
    color: var(--text-main);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1.2rem;
    align-items: center;
    justify-content: center;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(6, 78, 59, 0.45);
    z-index: 90;
}

.sidebar-overlay.show {
    display: block;
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: var(--shadow-md);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .content {
        margin-left: 0;
        width: 100%;
    }

    .sidebar-toggle {
        display: flex;
    }

    .topbar {
        padding: 1rem 1.25rem;
    }
}

@media (max-width: 575.98px) {
    .page-body {
        padding: 1.1rem 1rem 2rem 1rem;
    }

    .page-header-card {
        padding: 1.25rem 1.35rem;
    }

    .page-header-card h2 {
        font-size: 1.3rem;
    }

    .metric-card {
        padding: 1rem 1.1rem;
    }

    .topbar {
        padding: 0.85rem 1rem;
    }
}