:root{
  --bg:#f4f6f8;
  --bg-soft:#e9edf2;
  --panel:#ffffff;
  --panel-2:#f9fafb;
  --line:#dbe3ea;
  --text:#0f172a;
  --muted:#64748b;
  --accent:#0f766e;
  --accent-2:#2563eb;
  --accent-3:#d97706;
  --danger:#b91c1c;
  --success:#15803d;
  --shadow:0 14px 40px rgba(15,23,42,.08);
  --shadow-soft:0 8px 24px rgba(15,23,42,.05);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100%}
body{
  font-family:"Inter","Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(37,99,235,.08), transparent 30%),
    radial-gradient(circle at top right, rgba(15,118,110,.08), transparent 24%),
    linear-gradient(180deg, #f8fafc 0%, var(--bg) 100%);
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}

code{
  background:#eef2f7;
  border:1px solid var(--line);
  padding:.15rem .45rem;
  border-radius:.5rem;
}

.public-shell,
.app-shell{
  min-height:100vh;
}

.public-nav{
  position:sticky;
  top:0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:1rem clamp(1rem,3vw,2rem);
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(148,163,184,.22);
}

.brand-link{
  display:flex;
  align-items:center;
  gap:.85rem;
  font-weight:800;
  letter-spacing:.01em;
}

.brand-mark{
  width:2.4rem;
  height:2.4rem;
  display:grid;
  place-items:center;
  border-radius:.9rem;
  background:linear-gradient(135deg, var(--accent-2), var(--accent));
  color:#fff;
  font-weight:900;
  box-shadow:var(--shadow-soft);
}

.public-nav-actions,.topbar-actions,.page-actions{
  display:flex;
  align-items:center;
  gap:.75rem;
  flex-wrap:wrap;
}

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

.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:2.75rem;
  padding:.75rem 1.05rem;
  border-radius:.95rem;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .16s ease, border-color .16s ease, background .16s ease, color .16s ease, box-shadow .16s ease;
}

.button:hover{transform:translateY(-1px)}
.button-primary{
  color:#fff;
  background:linear-gradient(135deg, var(--accent-2), #1d4ed8);
  font-weight:700;
  box-shadow:0 10px 26px rgba(37,99,235,.18);
}
.button-ghost{
  background:#fff;
  border-color:var(--line);
  color:var(--text);
}
.button-ghost:hover{
  border-color:#b8c4d0;
  box-shadow:var(--shadow-soft);
}
.button.full{width:100%}

.alert,
.floating-message{
  margin:1rem clamp(1rem,3vw,2rem) 0;
  padding:1rem 1.1rem;
  border-radius:1rem;
  border:1px solid var(--line);
  background:rgba(255,255,255,.9);
  box-shadow:var(--shadow-soft);
}
.alert.error,.floating-message.error{
  border-color:rgba(185,28,28,.18);
  background:rgba(254,242,242,.95);
  color:#991b1b;
}
.alert.success,.floating-message.success{
  border-color:rgba(21,128,61,.18);
  background:rgba(240,253,244,.95);
  color:#166534;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  color:var(--accent);
  text-transform:uppercase;
  letter-spacing:.18em;
  font-size:.72rem;
  font-weight:800;
}

.muted,
.timeline-row span,
.mini-row span,
.line span,
.device-row span,
.device-head span,
.sidebar-sub,
.brand-sub{
  color:var(--muted);
}

.compact{margin:.25rem 0 0}

.hero-panel{
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);
  gap:2rem;
  align-items:center;
  padding:clamp(2rem,5vw,4rem) clamp(1rem,4vw,4rem) 2.5rem;
}

.hero-copy h1,
.auth-copy h1,
.panel-card h2,
.topbar h1,
.card h2,
.page-head h2{
  margin:.35rem 0 0;
  line-height:1.05;
  letter-spacing:-.03em;
}

.hero-copy h1{font-size:clamp(2.2rem,5vw,4.4rem);max-width:12ch}
.hero-copy p,
.auth-copy p,
.panel-card p,
.card p{
  color:var(--muted);
}

.hero-actions{
  display:flex;
  gap:.85rem;
  flex-wrap:wrap;
  margin:1.35rem 0 1.4rem;
}

.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:.85rem;
}

.hero-metrics article,
.device-card,
.panel-card,
.stat-card,
.auth-card,
.card{
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}

.hero-metrics article{
  border-radius:1.1rem;
  padding:1rem;
}
.hero-metrics strong{
  display:block;
  font-size:1.35rem;
  margin-bottom:.35rem;
}

.hero-device{
  display:flex;
  justify-content:center;
}

.device-card{
  width:min(100%, 420px);
  border-radius:1.5rem;
  padding:1.2rem;
}
.device-head{
  display:flex;
  flex-direction:column;
  gap:.3rem;
  padding:1rem;
  border-radius:1.1rem;
  background:linear-gradient(135deg, rgba(37,99,235,.08), rgba(15,118,110,.06));
  border:1px solid var(--line);
  margin-bottom:1rem;
}
.device-row{
  display:flex;
  justify-content:space-between;
  gap:1rem;
  padding:.92rem 0;
  border-bottom:1px solid rgba(148,163,184,.18);
}
.device-row:last-child{border-bottom:0}
.device-row.highlight strong{color:var(--accent)}

.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1rem;
  padding:0 clamp(1rem,4vw,4rem) 4rem;
}

.panel-card,
.card{
  border-radius:1.35rem;
  padding:1.15rem;
}

.card{
  margin-bottom:1rem;
}

.card.narrow{
  max-width:860px;
}

.section-head,
.page-head,
.card-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:1rem;
}

.page-head{
  margin-bottom:1rem;
}

.chip,
.top-chip,
.checkpoint-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  padding:.35rem .7rem;
  font-size:.78rem;
  font-weight:800;
  border:1px solid var(--line);
  background:#f8fafc;
  color:#334155;
}
.chip.ok,.checkpoint-badge.ok{
  color:#166534;
  border-color:rgba(21,128,61,.16);
  background:rgba(240,253,244,.95);
}
.chip.warn,.checkpoint-badge.pending{
  color:#92400e;
  border-color:rgba(217,119,6,.16);
  background:rgba(255,247,237,.95);
}

.auth-wrap{
  min-height:calc(100vh - 5.5rem);
  display:grid;
  place-items:center;
  padding:2rem 1rem 3rem;
}

.auth-card{
  width:min(100%, 470px);
  border-radius:1.5rem;
  padding:1.35rem;
}

.form-stack{
  display:grid;
  gap:1rem;
  margin-top:1.2rem;
}

.form-stack label,
.filters label,
.form-grid label{
  display:grid;
  gap:.45rem;
  color:var(--text);
  font-weight:700;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="number"],
select,
textarea{
  width:100%;
  border-radius:1rem;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  min-height:3rem;
  padding:.82rem .98rem;
  outline:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.6);
}

textarea{
  min-height:7rem;
  resize:vertical;
}

input:focus,
select:focus,
textarea:focus{
  border-color:rgba(37,99,235,.48);
  box-shadow:0 0 0 4px rgba(37,99,235,.08);
}

.hint-box{
  margin-top:1rem;
  padding:1rem;
  border-radius:1rem;
  background:rgba(37,99,235,.05);
  border:1px solid rgba(37,99,235,.12);
}

.app-shell{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
}

.sidebar{
  position:sticky;
  top:0;
  align-self:start;
  min-height:100vh;
  padding:1.2rem;
  background:rgba(255,255,255,.85);
  border-right:1px solid rgba(148,163,184,.22);
  backdrop-filter:blur(10px);
}

.brand-block{
  display:flex;
  gap:.9rem;
  align-items:center;
  padding:.25rem .1rem 1rem;
}

.brand-name{
  font-size:1.15rem;
  font-weight:900;
}

.sidebar-nav{
  display:grid;
  gap:.55rem;
  margin:1rem 0 1.25rem;
}

.sidebar-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:3rem;
  padding:.85rem .95rem;
  border-radius:1rem;
  border:1px solid transparent;
  color:#334155;
  background:#f8fafc;
  transition:background .16s ease, border-color .16s ease, transform .16s ease, box-shadow .16s ease;
}
.sidebar-link:hover{
  background:#fff;
  border-color:var(--line);
  transform:translateX(2px);
  box-shadow:var(--shadow-soft);
}
.sidebar-link.danger{
  color:var(--danger);
}

.sidebar-footer{
  margin-top:auto;
  padding:1rem;
  border-radius:1rem;
  background:linear-gradient(180deg, #fff, #f8fafc);
  border:1px solid var(--line);
  display:grid;
  gap:.25rem;
}
.sidebar-footer span{color:var(--muted);font-size:.84rem}

.content{
  padding:clamp(1rem,3vw,2rem);
}

.topbar{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:1rem;
}

.topbar h1{
  font-size:clamp(1.7rem,3vw,2.45rem);
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:1rem;
  margin-bottom:1rem;
}

.stat-card{
  border-radius:1.25rem;
  padding:1rem 1.05rem;
  display:grid;
  gap:.45rem;
}

.stat-card span{
  color:var(--muted);
  font-size:.9rem;
}

.stat-card strong{
  font-size:1.85rem;
  line-height:1;
}

.accent-1{background:linear-gradient(180deg, rgba(37,99,235,.08), rgba(255,255,255,.95))}
.accent-2{background:linear-gradient(180deg, rgba(15,118,110,.08), rgba(255,255,255,.95))}
.accent-3{background:linear-gradient(180deg, rgba(217,119,6,.08), rgba(255,255,255,.95))}
.accent-4{background:linear-gradient(180deg, rgba(185,28,28,.08), rgba(255,255,255,.95))}
.accent-5{background:linear-gradient(180deg, rgba(124,58,237,.08), rgba(255,255,255,.95))}
.accent-6{background:linear-gradient(180deg, rgba(21,128,61,.08), rgba(255,255,255,.95))}

.double-grid,
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1rem;
  margin-bottom:1rem;
}

.triple-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1rem;
  margin-bottom:1rem;
}

.wide{min-height:100%}

.round-summary,
.mini-stack{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1rem;
}

.round-summary div,
.mini-row,
.keygrid div,
.line{
  padding:.9rem 1rem;
  border-radius:1rem;
  background:#f8fafc;
  border:1px solid rgba(148,163,184,.22);
}

.round-summary span,
.mini-row span,
.line span,
.keygrid span{
  display:block;
  margin-bottom:.25rem;
  font-size:.85rem;
  color:var(--muted);
}

.keygrid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:.85rem;
}

.stack{
  display:grid;
  gap:.75rem;
}

.checkpoint-list,
.timeline{
  display:grid;
  gap:.8rem;
}

.checkpoint-row,
.timeline-item,
.timeline-row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:1rem;
  padding:.85rem 0;
  border-bottom:1px solid rgba(148,163,184,.18);
}
.checkpoint-row:last-child,
.timeline-item:last-child,
.timeline-row:last-child{
  border-bottom:0;
}
.checkpoint-row strong,
.timeline-row strong,
.timeline-item strong{
  display:block;
}
.timeline-row small,
.timeline-item small{
  color:var(--muted);
  white-space:nowrap;
}

.table-wrap{
  overflow:auto;
  border-radius:1rem;
  border:1px solid var(--line);
  background:#fff;
}

.data-table{
  width:100%;
  border-collapse:collapse;
  min-width:920px;
  background:#fff;
}

.data-table th,
.data-table td{
  padding:.9rem .95rem;
  text-align:left;
  border-bottom:1px solid rgba(148,163,184,.18);
}

.data-table th{
  color:#475569;
  font-size:.86rem;
  background:#f8fafc;
}

.data-table tbody tr:hover{
  background:#fbfdff;
}

.filters{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1rem;
  margin-top:1rem;
}

.filters-inline{
  display:flex;
  align-items:end;
  gap:1rem;
  flex-wrap:wrap;
  margin-bottom:1rem;
}

.filters-inline label{
  min-width:260px;
}

.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1rem;
}

.form-grid .full{
  grid-column:1 / -1;
}

.checkline{
  display:flex !important;
  align-items:center;
  gap:.65rem;
  padding:.8rem 0;
}

.checkline input{
  width:auto;
  min-height:auto;
  margin:0;
}

.actions{
  display:flex;
  align-items:center;
  gap:.75rem;
  flex-wrap:wrap;
}

.actions a,
.actions button{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  min-height:2.4rem;
  padding:.55rem .8rem;
  border-radius:.8rem;
  border:1px solid var(--line);
  background:#fff;
  color:#334155;
  cursor:pointer;
}

.actions button:hover,
.actions a:hover{
  box-shadow:var(--shadow-soft);
}

.card-foot{
  display:flex;
  gap:.75rem;
  flex-wrap:wrap;
  margin-top:1rem;
}

.qr-box{
  display:grid;
  place-items:center;
  padding:1.25rem;
  border-radius:1.25rem;
  background:#fff;
  border:1px dashed rgba(148,163,184,.35);
}

.qr-box img{
  width:min(100%, 320px);
  aspect-ratio:1 / 1;
  object-fit:contain;
}

.public-control{
  min-height:calc(100vh - 5.5rem);
  display:grid;
  place-items:center;
  padding:2rem 1rem 3rem;
}

.control-card{
  width:min(100%, 720px);
  border-radius:1.5rem;
  padding:1.5rem;
}

.control-card h1{
  margin:.4rem 0 .25rem;
  font-size:clamp(1.8rem,3vw,2.5rem);
}

.report-stats{
  margin-top:1rem;
}

@media (max-width: 1180px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{
    position:static;
    min-height:auto;
  }
  .stats-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .double-grid,
  .grid-2,
  .triple-grid,
  .feature-grid,
  .hero-panel{
    grid-template-columns:1fr;
  }
}

@media (max-width: 720px){
  .hero-metrics,
  .stats-grid,
  .filters,
  .round-summary,
  .mini-stack,
  .keygrid,
  .form-grid{
    grid-template-columns:1fr;
  }
  .topbar,
  .section-head,
  .card-head,
  .timeline-row,
  .timeline-item,
  .public-nav{
    flex-direction:column;
    align-items:flex-start;
  }
  .sidebar{
    padding:1rem;
  }
  .content{
    padding:1rem;
  }
  .filters-inline label{
    min-width:100%;
  }
}