/* ------------ Basis: kleuren & layout ------------ */

:root {
    --bg-page: #eef2f7;
    --bg-shell-top: #f5f7fb;
    --bg-shell-bottom: #e5edf7;
    --bg-card: #ffffff;
    --bg-card-soft: #f9fafb;
    --bg-sensor-panel: #2f3b4f;

    --text-main: #111827;
    --text-muted: #6b7280;
    --text-invert: #f9fafb;

    --accent-blue: #2563eb;
    --accent-blue-soft: rgba(37, 99, 235, 0.12);
    --accent-orange: #f97316;

    --border-subtle: #e5e7eb;

    --radius-lg: 18px;
    --radius-sm: 10px;

    --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.16);
    --shadow-card: 0 10px 25px rgba(15, 23, 42, 0.08);
}

/* Volledige achtergrond */
body {
    background: radial-gradient(circle at top, #f5f7fb 0%, #eef2f7 45%, #dde4f0 100%);
    color: var(--text-main);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Navbar */
.navbar {
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.22);
    border-bottom: none;
}

/* Shell waar je content in zit */
.page-shell {
    max-width: 1180px;
    margin: 30px auto 40px;
    background: linear-gradient(to bottom, var(--bg-shell-top), var(--bg-shell-bottom));
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
    padding: 24px 28px 28px;
}

/* Titel */
.page-title {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    text-align: left;
    margin-bottom: 22px;
}

/* Subtitel */
.page-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: -8px;
    margin-bottom: 18px;
}

/* ------------ Cards (bovenste blokken) ------------ */

.card,
.metric-card,
.chart-card,
.table-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.6);
    box-shadow: var(--shadow-card);
    padding: 18px 20px;
}

/* Zorg dat Bootstrap .card niet alles overschrijft */
.card {
    border: 1px solid rgba(255,255,255,0.6) !important;
}

/* Kleine header in cards */
.card-header-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.11em;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
}

/* Grote waarde */
.card-value {
    font-size: 2rem;
    font-weight: 700;
}

.card-unit {
    font-size: 0.95rem;
    margin-left: 4px;
    color: var(--text-muted);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(260px, 1.2fr);
    gap: 20px;
}

.dashboard-main {
    display: grid;
    grid-template-rows: auto auto 1fr;
    gap: 16px;
}

.metrics-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.dashboard-side {
    display: grid;
    grid-template-rows: auto auto;
    gap: 16px;
}

/* ------------ Sensor panel rechts ------------ */

.sensor-panel {
    background: var(--bg-sensor-panel);
    color: var(--text-invert);
    border-radius: var(--radius-lg);
    padding: 18px 18px 16px;
    box-shadow: var(--shadow-card);
}

.sensor-panel-title {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: rgba(249,250,251,0.7);
    margin-bottom: 10px;
}

.sensor-list {
    list-style: none;
    padding: 0;
    margin: 0 0 12px;
}

.sensor-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15,23,42,0.16);
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.live-block {
    margin-top: 6px;
}

.live-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: rgba(249,250,251,0.65);
}

.live-value {
    font-size: 1.4rem;
    font-weight: 700;
}

/* ------------ Grafieken + tabel ------------ */

.chart-card {
    padding: 16px 18px 10px;
}

.chart-frame {
    width: 100%;
    height: 220px;
    border: none;
    border-radius: var(--radius-sm);
}

.table-card {
    padding: 14px 18px 12px;
}

.table {
    margin-bottom: 0;
    font-size: 0.82rem;
    color: var(--text-main);
}

.table thead {
    background: var(--bg-card-soft);
}

.table thead th {
    border-bottom: none;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.09em;
}

.table tbody tr:nth-child(even) {
    background-color: #f3f4f6;
}

.table tbody tr:hover {
    background-color: #e5edf7;
}

/* ------------ Buttons & inputs ------------ */

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), #1d4ed8);
    border: none;
    border-radius: 999px;
    padding: 0.35rem 1.1rem;
    font-weight: 500;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
}

.form-control,
.form-select {
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    background-color: var(--bg-card-soft);
    font-size: 0.9rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px var(--accent-blue-soft);
}

/* ------------ Sensor grafieken GRID (nieuw) ------------ */

.sensor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 20px;
}

.sensor-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.6);
    box-shadow: var(--shadow-card);
    padding: 18px 20px;
}

.sensor-card h4 {
    margin-bottom: 12px;
}

/* ------------ Responsive ------------ */

@media (max-width: 992px) {
    .dashboard-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 768px) {
    .metrics-row {
        grid-template-columns: minmax(0, 1fr);
    }

    .page-shell {
        padding: 18px 16px 22px;
        border-radius: 16px;
    }
}