:root {
  --bg: #0f1115; --panel: #1d2026; --card: #17191f; --border: #2a2d35;
  --text: #e6e7ea; --muted: #9ca0a8; --accent: #4ade80;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, 'Segoe UI', sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
h1 { font-size: 24px; margin: 0 0 18px; }
h3 { font-size: 13px; margin: 0 0 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
main { max-width: 760px; margin: 0 auto; padding: 22px 16px 60px; }

/* Topbar */
.top { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: rgba(15,17,21,.9); backdrop-filter: blur(8px); z-index: 10; }
.logo { font-size: 18px; font-weight: 700; color: var(--text); }
.who { font-size: 13px; color: var(--muted); }

/* Login */
.login { max-width: 340px; margin: 14vh auto 0; padding: 0 20px; text-align: center; }
.login .brand { font-size: 34px; font-weight: 800; }
.login .sub { color: var(--muted); margin: 4px 0 26px; }
.login input { display: block; width: 100%; margin-bottom: 12px; background: var(--card); border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 13px 14px; font-size: 16px; }
.login button, .full-btn { background: var(--accent); color: #0f1115; border: 0; border-radius: 10px; padding: 13px 18px; font-weight: 700; font-size: 16px; cursor: pointer; width: 100%; }
.err { color: #f87171; font-size: 14px; }
.sub { color: var(--muted); font-size: 13px; }

/* Landningskort */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.devcard { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 18px; display: block; color: inherit; transition: border-color .15s, transform .15s; }
.devcard:hover { border-color: var(--accent); transform: translateY(-2px); }
.dc-head { font-size: 17px; display: flex; align-items: center; gap: 8px; }
.dc-sub { color: var(--muted); font-size: 13px; margin-top: 2px; }
.dc-soc { font-size: 38px; font-weight: 800; margin: 14px 0 2px; }
.dc-soc small { font-size: 14px; font-weight: 500; color: var(--muted); margin-left: 4px; }
.dc-meta { color: var(--muted); font-size: 13px; }
.dc-off { color: #f87171; font-size: 20px; font-weight: 600; margin-top: 14px; }

.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot.on { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.dot.off { background: #f87171; }

.back { font-size: 13px; color: var(--muted); display: inline-block; margin-bottom: 14px; }
.dev-title { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.dev-title h1 { margin: 0; }
.dev-title .sub { font-size: 12px; }

/* Hero */
.hero { display: flex; gap: 22px; align-items: center; background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 22px; margin-bottom: 16px; flex-wrap: wrap; }
.hero-ring { text-align: center; }
.ring { width: 150px; height: 150px; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: var(--border); stroke-width: 9; }
.ring-fg { fill: none; stroke-width: 9; stroke-linecap: round; transition: stroke-dashoffset .6s; }
.ring-val { fill: var(--text); font-size: 30px; font-weight: 800; text-anchor: middle; transform: rotate(90deg); transform-origin: 60px 60px; }
.ring-unit { fill: var(--muted); font-size: 10px; text-anchor: middle; transform: rotate(90deg); transform-origin: 60px 60px; }
.hero-kwh { color: var(--muted); font-size: 13px; margin-top: 6px; }
.hero-flow { flex: 1; min-width: 220px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 18px; }
.flow { display: flex; flex-direction: column; }
.flow span { color: var(--muted); font-size: 13px; }
.flow b { font-size: 19px; font-weight: 700; }

/* Tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 16px; }
.tile .big { font-size: 26px; font-weight: 800; margin: 2px 0; }

/* Panels */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 18px; margin-bottom: 16px; }
.plan { margin: 0; line-height: 1.6; }
.rooms { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
.room { display: flex; justify-content: space-between; background: var(--card); border: 1px solid var(--border); border-radius: 9px; padding: 8px 12px; }
.room span { color: var(--muted); font-size: 13px; }
.room b { font-weight: 700; }

.full-btn { display: block; text-align: center; margin-top: 8px; }
.offline-box { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 30px; text-align: center; }

/* Onboarding-wizard */
.wiz h1{margin-bottom:4px}
.wstep{display:flex;gap:16px;background:#1d2026;border:1px solid #2a2d35;border-radius:14px;padding:18px;margin-bottom:12px}
.wnum{flex:none;width:34px;height:34px;border-radius:50%;background:#17191f;border:1px solid #2a2d35;display:flex;align-items:center;justify-content:center;font-weight:800;position:relative}
.wbody{flex:1;min-width:0}
.wbody h3{color:#e6e7ea;text-transform:none;letter-spacing:0;font-size:17px;margin:0 0 4px}
.opt{color:#9ca0a8;font-weight:400;font-size:13px}
.wstatus{font-size:14px;margin:8px 0}
.wrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.wrow input,.wrow select{background:#0f1115;border:1px solid #2a2d35;color:#e6e7ea;border-radius:9px;padding:10px 12px;font-size:15px;flex:1;min-width:140px}
.wbtn{background:#4ade80;color:#0f1115;border:0;border-radius:9px;padding:10px 16px;font-weight:700;cursor:pointer;font-size:14px;white-space:nowrap}
.wbtn.ghost{background:transparent;border:1px solid #2a2d35;color:#e6e7ea;margin-top:8px}
.w-dot{position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;background:#52525b;border:2px solid #1d2026}
.w-dot.ok{background:#4ade80}
.wfinish{display:block;width:100%;margin-top:10px;background:#4ade80;color:#0f1115;border:0;border-radius:12px;padding:15px;font-weight:800;font-size:16px;cursor:pointer}

/* Admin */
.a-new{display:flex;gap:10px;flex-wrap:wrap}
.a-new input{flex:1;min-width:160px;background:#0f1115;border:1px solid #2a2d35;color:#e6e7ea;border-radius:9px;padding:11px 13px;font-size:15px}
.a-new button,.a-del{background:#4ade80;color:#0f1115;border:0;border-radius:9px;padding:11px 16px;font-weight:700;cursor:pointer}
.a-dev{background:#1d2026;border:1px solid #2a2d35;border-radius:12px;padding:16px;margin-bottom:12px}
.a-head{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.a-id{color:#5a5e66;font-size:12px;font-family:ui-monospace,monospace}
.a-on{color:#4ade80;font-size:13px}.a-off{color:#f87171;font-size:13px}.a-wait{color:#fbbf24;font-size:13px}
.a-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-top:12px}
.a-lbl{display:block;color:#9ca0a8;font-size:11px;text-transform:uppercase;letter-spacing:.03em;margin-bottom:3px}
.a-code{font-size:18px;font-weight:800;color:#4ade80;font-family:ui-monospace,monospace}
.a-det{margin-top:12px;border-top:1px solid #2a2d35;padding-top:10px}
.a-det summary{cursor:pointer;color:#9ca0a8;font-size:13px}
.a-cmd{display:block;background:#0f1115;border:1px solid #2a2d35;border-radius:8px;padding:10px 12px;font-family:ui-monospace,monospace;font-size:12px;color:#e6e7ea;overflow-x:auto;margin-top:4px;white-space:nowrap}
.a-del{background:#3a1a1a;color:#f87171;margin-top:12px;font-size:13px;padding:8px 14px}

/* Serienummer-bricka på aktiveringssidan (QR från etiketten) */
.serial-badge{display:inline-block;font-family:ui-monospace,Consolas,monospace;font-weight:800;font-size:20px;letter-spacing:.04em;background:#15171c;border:1px solid #4ade80;color:#4ade80;border-radius:10px;padding:8px 14px;margin:6px 0 14px}