/* ============================================================
   i3Qube PRO — Customer Portal styles (mobile-first)
   Built on Bootstrap 5; this file only adds the portal identity
   and the mobile card layout. Quiet and disciplined: one accent.
   ============================================================ */

:root{
  --brand:#1b1f24;          /* bar / headers */
  --accent:#2563eb;         /* the single accent */
  --accent-d:#1d4ed8;
  --on:#198754;             /* online   (matches admin) */
  --idle:#fd7e14;           /* idle     */
  --off:#6c757d;            /* offline  */
  --ink:#1b1f24;
  --muted:#6b7280;
  --line:#e7e9ee;
  --bg:#f5f6f8;
  --card:#ffffff;
}

body{
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
}

.container-narrow{ max-width:680px; margin-inline:auto; padding-inline:16px; }

/* ---- top bar ---- */
.portal-bar{
  background:var(--brand);
  padding-block:.6rem;
  padding-top:calc(.6rem + env(safe-area-inset-top));
}
.portal-bar .navbar-brand{ font-weight:700; letter-spacing:.4px; font-size:1.05rem; }

.page-title{ font-size:1.35rem; font-weight:700; letter-spacing:-.01em; }

/* ---- status pills ---- */
.status-pill{
  display:inline-block; font-size:.72rem; font-weight:600; line-height:1;
  padding:.34rem .6rem; border-radius:999px; color:#fff; text-transform:lowercase;
  letter-spacing:.02em;
}
.st-online{ background:var(--on); }
.st-idle{ background:var(--idle); }
.st-offline{ background:var(--off); }

/* ---- device list ---- */
.device-list{ display:flex; flex-direction:column; gap:12px; }
.device-card{
  display:grid;
  grid-template-columns:1fr auto auto;
  grid-template-areas:"main meta stat" "serial meta stat";
  align-items:center; gap:2px 14px;
  background:var(--card); border:1px solid var(--line); border-radius:16px;
  padding:16px 14px 16px 18px; text-decoration:none; color:inherit;
  position:relative; transition:border-color .15s, transform .04s;
}
.device-card:active{ transform:scale(.995); }
.device-card:hover{ border-color:#cdd2db; }
.device-main{ grid-area:main; }
.device-name{ font-weight:650; font-size:1.02rem; }
.device-serial{ grid-area:serial; font-size:.78rem; color:var(--muted); font-variant-numeric:tabular-nums; }
.device-meta{ grid-area:meta; display:flex; flex-direction:column; align-items:flex-end; gap:5px; }
.device-meta .seen-ago{ font-size:.72rem; }
.device-stat{ grid-area:stat; text-align:right; padding-left:6px; min-width:64px; }
.device-stat .stat-num{ display:block; font-weight:700; font-size:1.15rem; font-variant-numeric:tabular-nums; }
.device-stat .stat-lbl{ font-size:.66rem; color:var(--muted); text-transform:uppercase; letter-spacing:.04em; }
.device-chev{ position:absolute; right:8px; top:50%; transform:translateY(-50%); color:#c2c7d0; font-size:1.4rem; line-height:1; }

/* ---- detail ---- */
.back-link{ display:inline-block; margin-bottom:10px; color:var(--accent); text-decoration:none; font-size:.9rem; font-weight:600; }
.detail-head{ display:flex; justify-content:space-between; align-items:flex-start; gap:12px; margin-bottom:18px; }
.detail-serial{ font-size:.82rem; color:var(--muted); font-variant-numeric:tabular-nums; }

.stat-grid{ display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-bottom:14px; }
.stat-box{ background:var(--card); border:1px solid var(--line); border-radius:14px; padding:16px; }
.stat-box-num{ font-size:1.5rem; font-weight:750; letter-spacing:-.02em; font-variant-numeric:tabular-nums; }
.stat-box-num .unit{ font-size:.9rem; font-weight:600; color:var(--muted); margin-left:2px; }
.stat-box-lbl{ font-size:.74rem; color:var(--muted); margin-top:2px; }

.info-row{ display:flex; justify-content:space-between; align-items:center; background:var(--card); border:1px solid var(--line); border-radius:12px; padding:12px 14px; margin-bottom:16px; }

.chart-card{ background:var(--card); border:1px solid var(--line); border-radius:16px; padding:16px 14px 10px; margin-bottom:14px; }
.chart-title{ font-size:.86rem; font-weight:650; margin-bottom:10px; }
.chart-card canvas{ width:100% !important; }

/* ---- empty states ---- */
.empty-state{ text-align:center; padding:48px 20px; background:var(--card); border:1px solid var(--line); border-radius:18px; }
.empty-emoji{ font-size:2.4rem; margin-bottom:10px; }

/* ---- buttons / brand ---- */
.btn-brand{ background:var(--accent); border-color:var(--accent); color:#fff; font-weight:600; }
.btn-brand:hover, .btn-brand:focus{ background:var(--accent-d); border-color:var(--accent-d); color:#fff; }

/* ---- login ---- */
.login-wrap{ min-height:calc(100dvh - 0px); display:flex; align-items:center; justify-content:center; padding:24px 16px; }
.login-card{ width:100%; max-width:360px; background:var(--card); border:1px solid var(--line); border-radius:20px; padding:32px 24px; box-shadow:0 8px 30px rgba(20,24,32,.06); }
.login-logo{ font-size:1.5rem; font-weight:800; letter-spacing:.5px; text-align:center; }
.login-sub{ text-align:center; color:var(--muted); font-size:.9rem; margin-top:2px; margin-bottom:22px; }
.login-help{ text-align:center; color:var(--muted); font-size:.78rem; margin-top:18px; margin-bottom:0; }

@media (min-width:560px){
  .stat-grid{ grid-template-columns:repeat(4,1fr); }
}

@media (prefers-reduced-motion:reduce){
  .device-card{ transition:none; }
}