:root {
    --bg:        #141414;   /* near-black background */
    --panel:     #1f1f1f;   /* dark grey card */
    --panel-2:   #2a2a2a;   /* lighter grey input/button base */
    --border:    #3a3a3a;   /* subtle divider */
    --text:      #ececec;   /* off-white text */
    --muted:     #9a9a9a;   /* mid grey for labels/captions */
    --green:     #2ecc71;
    --yellow:    #f1c40f;
    --red:       #e74c3c;
    --blue:      #3498db;
    --accent:    #d0d0d0;   /* light grey accent (was blue) */
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px calc(14px + env(safe-area-inset-top)) 16px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

header h1 {
    margin: 0;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    color: var(--accent);
    font-weight: 700;
}

.device-picker {
    display: flex;
    align-items: center;
    gap: 10px;
}

.device-picker select {
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 0.95rem;
    max-width: 60vw;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--muted);
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.5);
}

.dot.on {
    background: var(--green);
    animation: pulse 1.5s infinite;
}

.dot.off { background: var(--red); }

@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.6); }
    70%  { box-shadow: 0 0 0 10px rgba(46, 204, 113, 0); }
    100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}

main {
    padding: 14px;
    max-width: 720px;
    margin: 0 auto;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 14px;
    min-height: 78px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card .label {
    font-size: 0.72rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card .value {
    font-size: 1.4rem;
    font-weight: 600;
    margin-top: 4px;
}

.card .sub {
    font-size: 0.7rem;
    color: var(--muted);
    margin-top: 2px;
}

/* card state colours */
.card.good  .value { color: var(--green); }
.card.warn  .value { color: var(--yellow); }
.card.bad   .value { color: var(--red); }
.card.info  .value { color: var(--accent); }

.map-section {
    margin-top: 14px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

#map {
    height: 280px;
    width: 100%;
    background: #141414;
}

.map-section.placeholder {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--muted);
}

.placeholder-inner .emoji {
    font-size: 2rem;
    display: block;
    margin-bottom: 8px;
    filter: grayscale(0.2);
}

.placeholder-inner .sub {
    font-size: 0.8rem;
    color: var(--muted);
    margin-top: 4px;
}

.controls {
    margin-top: 18px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.controls h2 {
    margin: 0 0 12px;
    font-size: 1rem;
    color: var(--accent);
    letter-spacing: 0.5px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 12px;
}

@media (min-width: 540px) {
    .form-row { grid-template-columns: 1fr 1fr; }
}

.form-row label {
    display: flex;
    flex-direction: column;
    font-size: 0.75rem;
    color: var(--muted);
    gap: 4px;
}

.form-row input {
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.95rem;
    font-family: inherit;
}

.form-row input:focus {
    outline: none;
    border-color: var(--accent);
}

.btn-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 10px;
}

.btn {
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.05s ease, opacity 0.2s;
    font-family: inherit;
}

.btn:active   { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn.primary { background: var(--green); color: #08311a; border-color: var(--green); }
.btn.danger  { background: var(--red);   color: #350c07; border-color: var(--red);   }
.btn.ghost   { background: transparent;  color: var(--accent); border-color: var(--accent); }

.log {
    margin-top: 12px;
    background: #0d0d0d;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 0.75rem;
    max-height: 140px;
    overflow-y: auto;
    color: var(--muted);
    white-space: pre-wrap;
    word-break: break-word;
}

.log .ok    { color: var(--green); }
.log .err   { color: var(--red); }
.log .info  { color: var(--accent); }

.map-banner {
    background: var(--panel-2);
    color: var(--muted);
    font-size: 0.78rem;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.map-banner.live  { color: var(--green); }
.map-banner.stale { color: var(--yellow); }

.btn.mini {
    padding: 8px 14px;
    margin-top: 12px;
    font-size: 0.85rem;
}

.raw-section {
    margin-top: 18px;
}

.raw-section details {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 14px;
}

.raw-section summary {
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.5px;
    user-select: none;
}

.raw-block {
    margin-top: 12px;
}

.raw-block h3 {
    margin: 0 0 6px;
    font-size: 0.72rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.raw-block pre {
    background: #0d0d0d;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 0.72rem;
    color: var(--text);
    overflow-x: auto;
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 260px;
    overflow-y: auto;
}

/* Beacon marker on the map */
.beacon {
    width: 18px;
    height: 18px;
    background: var(--green);
    border: 3px solid #fff;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.8);
    animation: beacon-pulse 1.6s infinite;
}

@keyframes beacon-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.7); }
    70%  { box-shadow: 0 0 0 16px rgba(46, 204, 113, 0); }
    100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}

.beacon.stale {
    background: var(--yellow);
    animation: none;
    box-shadow: 0 0 0 3px rgba(241, 196, 15, 0.25);
}