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

:root {
    /* Victron-inspired palette: deep navy base, lighter steel-blue cards */
    --bg: #061024;
    --bg-2: #0a1a36;
    --surface: #10264a;
    --surface-2: #143061;
    --border: #1f3d72;
    --text: #eef4ff;
    --muted: #9fb4d6;
    --accent: #38bdf8;
    --accent-2: #60a5fa;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #22c55e;
    --idle: #9fb4d6;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

/* Navbar */
.navbar { display: flex; align-items: center; justify-content: space-between; padding: 0.4rem 1rem; background: var(--surface); border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; font-size: 0.95rem; color: var(--accent); text-decoration: none; letter-spacing: 0.02em; }
.nav-links a { color: var(--muted); text-decoration: none; margin-left: 1rem; font-size: 0.8rem; }
.nav-links a:hover { color: var(--text); }

/* Layout */
.container { max-width: 1400px; margin: 0.75rem auto; padding: 0 1rem; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }

/* Dashboard header */
.dash-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 0.5rem; }
.dash-header h1 { font-size: 1.05rem; font-weight: 600; letter-spacing: 0.02em; }
.dash-status { display: flex; gap: 0.75rem; align-items: baseline; font-size: 0.8rem; }

.section-title {
    margin: 1rem 0 0.4rem;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
}

/* ── Victron-inspired top dashboard (three panels) ─────────────────── */
.vdash {
    display: grid;
    grid-template-columns: 1.1fr 1fr 1.2fr;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
}
@media (max-width: 1100px) { .vdash { grid-template-columns: 1fr 1fr; } .vpanel-soc { grid-column: 1 / -1; } }
@media (max-width: 720px)  { .vdash { grid-template-columns: 1fr; } .vpanel-soc { grid-column: auto; } }

.vpanel {
    background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.65rem 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.22);
    display: flex;
    flex-direction: column;
    min-height: 0;
}
.vpanel-label {
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--accent);
    margin-bottom: 0.4rem;
}

/* SOC panel */
.vpanel-soc { align-items: center; }
.soc-gauge { width: 130px; height: 130px; margin: 0.15rem auto 0.4rem; }
.soc-svg { width: 100%; height: 100%; display: block; }
.soc-track {
    fill: none;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 16;
}
.soc-fill {
    fill: none;
    stroke: url(#socGrad);
    stroke-width: 16;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.8s ease-out;
}
.soc-num {
    font: 700 46px system-ui, sans-serif;
    fill: var(--text);
}
.soc-unit {
    font: 500 16px system-ui, sans-serif;
    fill: var(--muted);
    letter-spacing: 0.08em;
}
.soc-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.3rem;
    width: 100%;
    margin-top: 0.25rem;
}
.metric { text-align: center; padding: 0.25rem 0.15rem; background: rgba(255,255,255,0.03); border-radius: 4px; }
.metric-label { font-size: 0.6rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.metric-value { font-size: 0.82rem; font-weight: 600; margin-top: 0.1rem; }

/* Status panel list */
.status-list { list-style: none; display: flex; flex-direction: column; gap: 0; }
.status-list li {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.2rem 0.1rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.78rem;
    line-height: 1.2;
}
.status-list li:last-child { border-bottom: none; }
.status-list span { color: var(--muted); }
.status-list b { color: var(--text); font-weight: 600; }

/* State colors */
.state-charging    { color: var(--success) !important; }
.state-discharging { color: var(--warning) !important; }
.state-idle        { color: var(--idle) !important; }
.state-unknown     { color: var(--muted) !important; }

/* Pills (alert counts) */
.pill {
    display: inline-block;
    padding: 0.05rem 0.4rem;
    border-radius: 8px;
    font-size: 0.65rem;
    font-weight: 700;
    margin-left: 0.2rem;
}
.pill-critical { background: rgba(239, 68, 68, 0.2); color: var(--danger); border: 1px solid var(--danger); }
.pill-warning  { background: rgba(245, 158, 11, 0.15); color: var(--warning); border: 1px solid var(--warning); }

/* History panel */
.hist-controls { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 0.4rem; flex-wrap: wrap; }
.hist-controls label { margin: 0; font-size: 0.72rem; }

.filter-group { display: inline-flex; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.filter-btn {
    margin: 0;
    padding: 0.2rem 0.6rem;
    background: var(--bg-2);
    color: var(--muted);
    border: none;
    border-right: 1px solid var(--border);
    border-radius: 0;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    line-height: 1.4;
}
.filter-btn:last-child { border-right: none; }
.filter-btn:hover { background: var(--surface-2); color: var(--text); }
.filter-btn.is-active { background: var(--accent); color: #03121f; }
.filter-btn.is-active:hover { background: var(--accent); color: #03121f; opacity: 0.9; }
.btn-secondary {
    margin-top: 0;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 3px;
    cursor: pointer;
}
.btn-secondary:hover { background: var(--border); }

.btn-danger {
    margin-top: 0;
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
    border-radius: 3px;
    cursor: pointer;
}
.btn-danger:hover { background: var(--danger); color: #fff; }

.hist-list {
    overflow-y: auto;
    max-height: 220px;
    display: flex; flex-direction: column; gap: 0.2rem;
    padding-right: 0.2rem;
}
.hist-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.45rem;
    background: rgba(255,255,255,0.03);
    border-left: 3px solid var(--border);
    border-radius: 3px;
}
.hist-item.sev-critical { border-left-color: var(--danger); background: rgba(239, 68, 68, 0.08); }
.hist-item.sev-warning  { border-left-color: var(--warning); background: rgba(245, 158, 11, 0.06); }
.hist-item.sev-info     { border-left-color: var(--accent); }
.hist-sev {
    font-size: 0.58rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.08rem 0.3rem;
    border-radius: 3px;
    min-width: 3.6rem;
    text-align: center;
}
.sev-critical .hist-sev { background: var(--danger); color: #fff; }
.sev-warning  .hist-sev { background: var(--warning); color: #111; }
.sev-info     .hist-sev { background: var(--accent); color: #fff; }
.hist-body { display: flex; align-items: baseline; gap: 0.5rem; min-width: 0; overflow: hidden; }
.hist-title { font-weight: 600; font-size: 0.78rem; line-height: 1.15; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex-shrink: 1; }
.hist-meta { font-size: 0.65rem; color: var(--muted); line-height: 1.15; white-space: nowrap; flex-shrink: 0; }
.ack-btn {
    margin-top: 0;
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--border);
    width: 22px; height: 22px;
    padding: 0;
    border-radius: 3px;
    font-size: 0.75rem;
    cursor: pointer;
    line-height: 1;
}
.ack-btn:hover { background: var(--success); color: #fff; border-color: var(--success); }

/* Cards (legacy detail panels) */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 0.7rem 0.85rem; margin-bottom: 0.6rem; }
.card h2 { font-size: 0.85rem; margin-bottom: 0.4rem; color: var(--accent); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
th, td { text-align: left; padding: 0.2rem 0.45rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }

/* Forms */
label { display: block; margin-top: 0.75rem; font-size: 0.85rem; color: var(--muted); }
input[type="text"], input[type="password"], select {
    width: 100%; padding: 0.5rem; margin-top: 0.25rem;
    background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 4px;
    font-size: 0.95rem;
}
button {
    margin-top: 1rem; padding: 0.5rem 1.25rem;
    background: var(--accent); color: #03121f; border: none; border-radius: 4px;
    cursor: pointer; font-size: 0.9rem; font-weight: 600;
}
button:hover { opacity: 0.9; }

/* Alerts (toast/banner style) */
.alert { padding: 0.75rem 1rem; border-radius: 4px; margin-bottom: 1rem; font-size: 0.9rem; }
.alert-error { background: #451a1a; border: 1px solid var(--danger); color: var(--danger); }
.alert-info { background: #1e3a5f; border: 1px solid var(--accent); color: var(--accent); }
.alert-warning { background: #422006; border: 1px solid var(--warning); color: var(--warning); }
.alert-warning code { background: var(--bg); padding: 0.2rem 0.4rem; border-radius: 3px; word-break: break-all; }

/* Severity rows */
.severity-critical td { color: var(--danger); }
.severity-warning td { color: var(--warning); }
.severity-info td { color: var(--muted); }

.muted { color: var(--muted); }

/* Login page */
.login-wrapper {
    max-width: 360px; margin: 6rem auto; padding: 2rem;
    background: var(--surface); border: 1px solid var(--border); border-radius: 8px; text-align: center;
}
.login-wrapper h1 { margin-bottom: 1.5rem; color: var(--accent); }

/* Status indicators */
.status-online { color: var(--success); font-weight: 600; }
.status-online::before { content: "\25CF "; }
.status-offline { color: var(--danger); font-weight: 600; }
.status-offline::before { content: "\25CF "; }

/* Controls bar */
.controls { margin-bottom: 1rem; }
.controls select { width: auto; display: inline-block; }

/* SMS settings page form bits */
label.consent { display: flex; gap: 0.55rem; align-items: flex-start; line-height: 1.4; color: var(--text); font-size: 0.85rem; }
label.consent input[type="checkbox"] { margin-top: 0.2rem; flex-shrink: 0; }
.msg-ok { background: rgba(34, 197, 94, 0.12); border: 1px solid var(--success); color: var(--success); padding: 0.55rem 0.75rem; border-radius: 4px; }
.msg-err { background: rgba(239, 68, 68, 0.12); border: 1px solid var(--danger); color: var(--danger); padding: 0.55rem 0.75rem; border-radius: 4px; }
.btn-primary { background: var(--accent); color: #03121f; border: 1px solid var(--accent); padding: 0.45rem 0.9rem; border-radius: 4px; font-weight: 600; cursor: pointer; }
.btn-primary:hover { opacity: 0.9; }

/* History page chart explanatory notes */
.chart-note {
    font-size: 0.78rem;
    color: var(--muted);
    margin: 0.15rem 0 0.6rem;
    line-height: 1.4;
}
.chart-note b { color: var(--text); font-weight: 600; }

/* Horizontal SOC status bar (dashboard) */
.card-shunt { display: flex; flex-direction: column; }
.soc-section {
    margin-top: auto;
    margin-bottom: auto;
    padding-top: 1rem;
    padding-bottom: 0.25rem;
}
.soc-section-title {
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--accent);
    margin-bottom: 0.55rem;
}
.soc-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0;
}
.soc-bar-track {
    flex: 1;
    height: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 999px;
    overflow: hidden;
}
.soc-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-2) 0%, var(--accent) 100%);
    border-radius: 999px;
    transition: width 0.6s ease-out;
}
.soc-bar-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
    min-width: 3.2rem;
    text-align: right;
    font-variant-numeric: tabular-nums;
}
.soc-bar-empty .soc-bar-fill { background: var(--border); }
.soc-bar-empty .soc-bar-label { color: var(--muted); }