:root {
  --bg: #eceef0; --panel: #ffffff; --panel-2: #f6f7f8; --text: #16181d;
  --muted: #6a7079; --line: #e2e5e8; --accent: #1c6bba; --accent-soft: #1c6bba1a;
  --good: #2f7d52; --good-soft: #2f7d5218; --warn: #b0791c; --warn-soft: #b0791c18;
  --bad: #b23b3b; --bad-soft: #b23b3b18; --shadow: 0 1px 2px #16181d0a, 0 8px 24px #16181d08;
  --radius: 14px;
}
[data-theme="dark"] {
  --bg: #0d0e10; --panel: #16181c; --panel-2: #1b1e23; --text: #e8eaec;
  --muted: #868d96; --line: #262a30; --accent: #4a95e0; --accent-soft: #4a95e022;
  --good: #4bb07a; --good-soft: #4bb07a1f; --warn: #d69a3a; --warn-soft: #d69a3a1f;
  --bad: #df6a61; --bad-soft: #df6a611f; --shadow: none;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--text); }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5; -webkit-font-smoothing: antialiased; min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Topbar ─────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px; border-bottom: 1px solid var(--line);
  background: var(--panel); position: sticky; top: 0; z-index: 500;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand .mark { font-weight: 600; letter-spacing: .34em; font-size: 17px; padding-left: 2px; }
.brand .sep { width: 1px; height: 18px; background: var(--line); }
.brand .sub { color: var(--muted); font-size: 14px; letter-spacing: .02em; }
.top-actions { display: flex; align-items: center; gap: 14px; }
.conn { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.conn .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.conn .dot.ok { background: var(--good); box-shadow: 0 0 0 4px var(--good-soft); }
.conn .dot.stale { background: var(--warn); box-shadow: 0 0 0 4px var(--warn-soft); }
.conn .dot.off { background: var(--bad); box-shadow: 0 0 0 4px var(--bad-soft); }
.icon-btn, .ghost-btn {
  border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  border-radius: 9px; cursor: pointer; font-size: 13px; font-family: inherit;
}
.icon-btn { width: 36px; height: 34px; display: grid; place-items: center; font-size: 15px; }
.ghost-btn { padding: 7px 14px; }
.icon-btn:hover, .ghost-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Layout ─────────────────────────────────────── */
.layout {
  display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 22px;
  max-width: 1440px; margin: 0 auto; padding: 24px 28px 60px;
}
@media (max-width: 1000px) { .layout { grid-template-columns: 1fr; } }

/* ── Cards / grid ───────────────────────────────── */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.card h3 {
  font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted);
  font-weight: 600; margin-bottom: 14px; display: flex; align-items: center; justify-content: space-between;
}
.card h3 .src { font-weight: 400; text-transform: none; letter-spacing: 0; font-size: 10px; color: var(--muted); background: var(--panel-2); border: 1px solid var(--line); padding: 2px 8px; border-radius: 999px; }
.span-2 { grid-column: span 2; }
@media (max-width: 560px) { .span-2 { grid-column: span 1; } }

.row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 7px 0; font-size: 14px; }
.row + .row { border-top: 1px solid var(--line); }
.row .label { color: var(--muted); }
.big { font-size: 40px; font-weight: 300; letter-spacing: -.02em; line-height: 1; }
.big .unit { font-size: 16px; color: var(--muted); font-weight: 400; margin-left: 4px; }

/* ── Badges ─────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500;
  padding: 3px 10px; border-radius: 999px; background: var(--panel-2); color: var(--muted);
  border: 1px solid var(--line); white-space: nowrap;
}
.badge.ok { color: var(--good); background: var(--good-soft); border-color: transparent; }
.badge.warn { color: var(--warn); background: var(--warn-soft); border-color: transparent; }
.badge.err, .badge.bad { color: var(--bad); background: var(--bad-soft); border-color: transparent; }
.badge.info { color: var(--accent); background: var(--accent-soft); border-color: transparent; }

/* ── Hero ───────────────────────────────────────── */
.hero {
  grid-column: 1 / -1; display: grid; grid-template-columns: auto 1fr auto; gap: 32px; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 30px; box-shadow: var(--shadow);
}
@media (max-width: 720px) { .hero { grid-template-columns: 1fr; text-align: center; gap: 20px; } }
.hero-id .model { font-size: 22px; font-weight: 400; letter-spacing: -.01em; }
.hero-id .vin { color: var(--muted); font-size: 12px; letter-spacing: .06em; margin-top: 4px; font-variant-numeric: tabular-nums; }
.hero-id .meta { color: var(--muted); font-size: 13px; margin-top: 10px; }
.hero-center { display: flex; align-items: center; gap: 26px; justify-content: center; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat .v { font-size: 26px; font-weight: 300; }
.hero-stat .k { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-top: 2px; }
.lock-state { display: inline-flex; align-items: center; gap: 9px; font-size: 15px; font-weight: 500; padding: 8px 16px; border-radius: 999px; }
.lock-state.locked { color: var(--good); background: var(--good-soft); }
.lock-state.unlocked { color: var(--bad); background: var(--bad-soft); }

/* Battery ring */
.ring-wrap { position: relative; width: 116px; height: 116px; margin: 0 auto; }
.ring-wrap svg { transform: rotate(-90deg); }
.ring-wrap .ring-bg { stroke: var(--line); }
.ring-wrap .ring-fg { stroke-linecap: round; transition: stroke-dashoffset .6s ease, stroke .3s; }
.ring-label { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.ring-label .pct { font-size: 32px; font-weight: 300; line-height: 1; }
.ring-label .pct span { font-size: 15px; color: var(--muted); }

/* ── Alerts ─────────────────────────────────────── */
.alerts { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; }
.alert { display: inline-flex; align-items: center; gap: 9px; font-size: 13.5px; font-weight: 500; padding: 9px 15px; border-radius: 10px; }
.alert.warn { color: var(--warn); background: var(--warn-soft); }
.alert.bad { color: var(--bad); background: var(--bad-soft); }
.alert .ai { font-size: 15px; }
.alerts-clear {
  grid-column: 1 / -1; display: flex; align-items: center; gap: 9px; color: var(--good);
  font-size: 13.5px; padding: 9px 15px; background: var(--good-soft); border-radius: 10px; font-weight: 500;
}

/* ── Recharge ───────────────────────────────────── */
.battery-bar { height: 8px; background: var(--panel-2); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; margin: 12px 0 6px; }
.battery-bar .fill { height: 100%; background: var(--good); transition: width .6s ease; }

/* ── Map ────────────────────────────────────────── */
#map { height: 240px; border-radius: 10px; overflow: hidden; margin-top: 2px; z-index: 0; }
.leaflet-container { background: var(--panel-2); font: inherit; }
.car-pin {
  width: 30px; height: 30px; border-radius: 50%; background: var(--accent);
  border: 3px solid var(--panel); box-shadow: 0 2px 8px #0004; display: grid; place-items: center;
  color: #fff; font-size: 15px;
}
.map-meta { display: flex; justify-content: space-between; margin-top: 10px; font-size: 12.5px; color: var(--muted); }

/* ── History chart ──────────────────────────────── */
.chart { width: 100%; height: 130px; display: block; }
.chart .area { fill: var(--accent-soft); }
.chart .line { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
.chart .grid-l { stroke: var(--line); stroke-width: 1; }
.chart text { fill: var(--muted); font-size: 10px; }
.chart-empty { color: var(--muted); font-size: 13px; padding: 34px 0; text-align: center; }

/* ── Commands ───────────────────────────────────── */
.cmd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cmd {
  position: relative; border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  border-radius: 10px; padding: 12px 10px; font-size: 13.5px; font-weight: 500; font-family: inherit;
  cursor: pointer; text-align: center; transition: border-color .15s, background .15s, color .15s;
}
.cmd:hover { border-color: var(--accent); }
.cmd.danger:hover { border-color: var(--bad); }
.cmd.confirm { background: var(--warn-soft); border-color: var(--warn); color: var(--warn); }
.cmd.danger.confirm { background: var(--bad-soft); border-color: var(--bad); color: var(--bad); }
.cmd.busy { opacity: .55; pointer-events: none; }
.cmd .hint { display: block; font-size: 10.5px; font-weight: 400; opacity: .85; margin-top: 2px; }
.cmd-note { font-size: 12px; color: var(--muted); margin-top: 12px; }
#cmdResult { margin-top: 12px; font-size: 13px; min-height: 18px; }

/* ── Health ─────────────────────────────────────── */
.health-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.health-item .k { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.health-item .v { font-size: 16px; font-weight: 400; margin-top: 2px; }

/* ── Log rail ───────────────────────────────────── */
.log-rail {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); align-self: start; position: sticky; top: 92px;
  max-height: calc(100vh - 116px); display: flex; flex-direction: column; overflow: hidden;
}
@media (max-width: 1000px) { .log-rail { position: static; max-height: 480px; } }
.log-head { padding: 16px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.log-head h3 { font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 600; }
.log-head .count { font-size: 11px; color: var(--muted); }
.log-list { overflow-y: auto; padding: 4px 0; }
.log-item { display: flex; gap: 12px; padding: 10px 18px; font-size: 13px; align-items: stretch; }
.log-item + .log-item { border-top: 1px solid var(--line); }
.log-item .lbar { width: 3px; border-radius: 2px; background: var(--muted); flex: none; }
.log-item.good .lbar { background: var(--good); }
.log-item.warn .lbar { background: var(--warn); }
.log-item.info .lbar { background: var(--accent); }
.log-item .lmsg { flex: 1; }
.log-item .lmsg .lval { color: var(--muted); }
.log-item .lmsg .ldetail { color: var(--muted); font-size: 11.5px; margin-top: 3px; }
.log-item .lmsg strong { font-weight: 600; }
.log-item .ltime { color: var(--muted); font-size: 11px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.log-empty { padding: 34px 18px; text-align: center; color: var(--muted); font-size: 13px; }

/* ── Refresh bar / misc ─────────────────────────── */
.refresh-bar { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 2px; }
.refresh-bar .updated { font-size: 13px; color: var(--muted); display: inline-flex; align-items: center; }
.poll-ring { display: inline-flex; margin-right: 8px; }
.poll-ring svg { transform: rotate(-90deg); }
.poll-ring .pr-bg { stroke: var(--line); }
.poll-ring .pr-fg { stroke: var(--accent); transition: stroke-dashoffset 1s linear; }
.refresh-bar .updated b { color: var(--text); font-weight: 500; }
.btn-refresh {
  border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 9px;
  padding: 8px 16px; font-size: 13px; cursor: pointer; font-family: inherit; display: inline-flex; align-items: center; gap: 8px;
}
.btn-refresh:hover { border-color: var(--accent); color: var(--accent); }
.btn-refresh.spin { opacity: .6; pointer-events: none; }
.loading, .error-banner { padding: 40px; text-align: center; color: var(--muted); }
.error-banner { color: var(--bad); background: var(--bad-soft); border-radius: var(--radius); }
.muted { color: var(--muted); font-size: 13px; }

/* Login screen */
.login-screen { max-width: 480px; margin: 8vh auto; text-align: center; padding: 0 20px; }
.login-screen h2 { font-weight: 300; font-size: 28px; margin-bottom: 10px; }
.login-screen p { color: var(--muted); margin-bottom: 22px; }
.btn-primary { background: var(--accent); color: #fff; border: none; border-radius: 10px; padding: 12px 22px; font-size: 15px; cursor: pointer; font-family: inherit; }
.btn-primary:hover { filter: brightness(1.06); }
textarea { width: 100%; background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); padding: 10px; font-family: ui-monospace, monospace; font-size: 12px; resize: vertical; }

/* ══ iOS-style redesign ═══════════════════════════ */
.hero-ios {
  grid-column: 1 / -1; position: relative; border-radius: 22px; padding: 22px 26px; min-height: 310px;
  overflow: hidden; border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between;
  color: #e8eaec; background: radial-gradient(130% 120% at 82% 8%, #2b3138 0%, #17191d 56%, #101216 100%);
}
[data-theme="light"] .hero-ios { color: #16181d; background: radial-gradient(130% 120% at 82% 8%, #f2f4f7 0%, #e8ebef 56%, #dee2e7 100%); }
.hero-top { display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 3; }
.hero-model { font-size: 15px; font-weight: 500; padding: 6px 13px; border-radius: 999px; background: #ffffff14; border: 1px solid #ffffff1f; }
[data-theme="light"] .hero-model { background: #0000000a; border-color: #0000000f; }
.hero-poll { display: flex; align-items: center; gap: 10px; }
.hero-poll .icon-btn { background: #ffffff12; border-color: #ffffff1f; color: inherit; }
[data-theme="light"] .hero-poll .icon-btn { background: #0000000a; border-color: #0000000f; }
.hero-main { position: relative; z-index: 2; display: flex; align-items: flex-end; flex: 1; }
.hero-pct { font-size: 86px; font-weight: 200; line-height: .85; letter-spacing: -.03em; }
.hero-pct span { font-size: 34px; font-weight: 300; opacity: .55; margin-left: 3px; }
.hero-range { font-size: 30px; font-weight: 300; opacity: .8; margin-top: 6px; }
.charge-chip { display: inline-flex; align-items: center; gap: 7px; margin-top: 15px; font-size: 13.5px; font-weight: 600; padding: 7px 13px; border-radius: 999px; background: var(--good-soft); color: var(--good); }
.charge-chip .cbolt { animation: bolt 1.5s ease-in-out infinite; }
@keyframes bolt { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.45;transform:scale(.9)} }
.hero-car { position: absolute; right: -2%; bottom: -7%; width: 64%; max-width: 600px; height: auto; z-index: 1; pointer-events: none; filter: drop-shadow(0 22px 26px #0008); }
.hero-ios.charging::after { content: ''; position: absolute; right: 12%; bottom: 4%; width: 300px; height: 300px; z-index: 0;
  background: radial-gradient(circle, var(--good) 0%, transparent 60%); filter: blur(6px); animation: glow 2.6s ease-in-out infinite; }
@keyframes glow { 0%,100%{opacity:.08} 50%{opacity:.22} }
.hero-bottom { position: relative; z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }
.lock-ios { display: inline-flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 500; }
.lock-ios.locked { color: var(--good); } .lock-ios.unlocked { color: var(--bad); }
.hero-updated { font-size: 12.5px; opacity: .6; } .hero-updated b { font-weight: 600; opacity: 1; }
.icon-btn.sm { width: 30px; height: 30px; font-size: 14px; }

.quick-actions { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 560px) { .quick-actions { grid-template-columns: repeat(4, 1fr); gap: 8px; } }
.qa { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 6px; border: 1px solid var(--line);
  background: var(--panel); border-radius: 16px; cursor: pointer; color: var(--text); font-family: inherit; text-align: center;
  transition: border-color .15s, background .15s, color .15s; }
.qa:hover { border-color: var(--accent); } .qa.danger:hover { border-color: var(--bad); }
.qa.confirm { background: var(--bad-soft); border-color: var(--bad); color: var(--bad); }
.qa.busy { opacity: .5; pointer-events: none; }
.qa .qi { font-size: 22px; line-height: 1; } .qa .ql { font-size: 12px; font-weight: 500; }
.qa .hint { font-size: 10px; opacity: .8; }

.tiles { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 620px) { .tiles { grid-template-columns: 1fr; } }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 20px; box-shadow: var(--shadow); }
.tile-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.tile-ico { font-size: 17px; } .tile-title { font-size: 15px; font-weight: 600; flex: 1; }
.tile-big { font-size: 46px; font-weight: 300; letter-spacing: -.02em; line-height: 1; margin: 6px 0 10px; }
.tile-big .u { font-size: 17px; color: var(--muted); margin-left: 5px; }
.tile-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
#cmdResult { grid-column: 1 / -1; }