/* TechVision OneReach — design system (dark, product-grade, responsive). */
:root {
  --bg: #0d1220;
  --bg-panel: #141b2e;
  --bg-raised: #1b2438;
  --bg-hover: rgba(255, 255, 255, 0.05);
  --border: #26314b;
  --text: #e8ecf6;
  --text-dim: #8b96b2;
  --accent: #e8412c;
  --accent-soft: rgba(232, 65, 44, 0.14);
  --ok: #2ecc71;
  --warn: #f0a04b;
  --danger: #e74c3c;
  --info: #3ba9f5;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; }
a { color: var(--info); text-decoration: none; }

/* ---------------------------------------------------------------- login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px;
  background: radial-gradient(1200px 600px at 70% -10%, rgba(232,65,44,.13), transparent 60%), var(--bg); }
.login-card { width: 380px; max-width: 100%; background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: 16px; padding: 34px 32px; }
.login-card .brand { font-size: 24px; font-weight: 800; letter-spacing: -.01em; }
.login-card .brand b { color: var(--accent); }
.login-card .tagline { color: var(--text-dim); font-size: 12.5px; margin: 4px 0 26px; }
.login-card label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-dim); margin: 14px 0 6px; }
.login-card .err { color: var(--danger); font-size: 12.5px; min-height: 18px; margin-top: 10px; }

/* ---------------------------------------------------------------- shell */
.shell { display: none; min-height: 100vh; }
.shell.on { display: flex; }
.sidebar { width: 232px; flex-shrink: 0; background: var(--bg-panel); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar .brand { padding: 18px 18px 14px; font-size: 17px; font-weight: 800; }
.sidebar .brand b { color: var(--accent); }
.sidebar .brand small { display: block; font-weight: 400; font-size: 10.5px; color: var(--text-dim); margin-top: 2px; }
.nav-group { margin: 6px 10px 0; }
.nav-group-title { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim);
  padding: 10px 8px 4px; }
.nav-link { display: flex; align-items: center; gap: 8px; width: 100%; text-align: left; background: none; border: 0;
  color: var(--text); font: inherit; font-size: 13.5px; padding: 8px 10px; border-radius: 8px; cursor: pointer; }
.nav-link:hover { background: var(--bg-hover); }
.nav-link.active { background: var(--accent-soft); color: #ff7a68; font-weight: 600; }
.sidebar .foot { margin-top: auto; padding: 14px 18px; border-top: 1px solid var(--border); font-size: 12px;
  color: var(--text-dim); display: flex; justify-content: space-between; align-items: center; gap: 8px; }

.main { flex: 1; min-width: 0; padding: 26px 30px 60px; }
.page-title { font-size: 21px; font-weight: 750; margin: 0 0 4px; }
.page-sub { color: var(--text-dim); font-size: 13px; margin: 0 0 22px; }

/* ---------------------------------------------------------------- panels */
.panel { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 20px; overflow: hidden; }
.panel-header { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 15px 18px;
  border-bottom: 1px solid var(--border); }
.panel-header h2 { font-size: 15.5px; margin: 0; font-weight: 700; }
.panel-header .hint { color: var(--text-dim); font-size: 12px; flex: 1 1 220px; }
.panel-body { padding: 18px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.stat { background: var(--bg-raised); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat b { display: block; font-size: 25px; font-weight: 800; line-height: 1.25; }
.stat span { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-dim); }
.stat.accent b { color: var(--accent); }
.stat.ok b { color: var(--ok); }
.stat.danger b { color: var(--danger); }

/* ---------------------------------------------------------------- controls */
input[type=text], input[type=email], input[type=password], input[type=number], input[type=time], input[type=date], select, textarea {
  background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; font: inherit; font-size: 13px; width: 100%; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
.btn { border: 0; border-radius: 9px; padding: 9px 15px; font: inherit; font-size: 13px; font-weight: 600;
  cursor: pointer; background: var(--bg-raised); color: var(--text); }
.btn:hover { filter: brightness(1.15); }
.btn.primary { background: var(--accent); color: #fff; }
.btn.danger { background: var(--danger); color: #fff; }
.btn.ghost { background: transparent; border: 1px solid var(--border); }
.btn.mini { padding: 4px 10px; font-size: 11.5px; border-radius: 7px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field > span { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-dim); }
.fields { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.fields .field { min-width: 150px; flex: 0 1 auto; }

/* ---------------------------------------------------------------- tables */
table.grid { width: 100%; border-collapse: collapse; font-size: 13px; }
table.grid th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--text-dim); font-weight: 600; padding: 0 10px 9px; }
table.grid td { padding: 8px 10px; border-top: 1px solid var(--border); vertical-align: middle; }
table.grid tr:hover td { background: var(--bg-hover); }
.pill { display: inline-block; border-radius: 999px; padding: 2px 10px; font-size: 11px; font-weight: 600; }
.pill.ok { background: rgba(46, 204, 113, .15); color: var(--ok); }
.pill.warn { background: rgba(240, 160, 75, .15); color: var(--warn); }
.pill.danger { background: rgba(231, 76, 60, .15); color: var(--danger); }
.pill.info { background: rgba(59, 169, 245, .15); color: var(--info); }
.pill.dim { background: rgba(139, 150, 178, .15); color: var(--text-dim); }

.empty { padding: 44px 20px; text-align: center; color: var(--text-dim); }
.empty b { display: block; font-size: 15px; color: var(--text); margin-bottom: 6px; }

/* ---------------------------------------------------------------- toast + modal */
#toasts { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 1000; }
.toast { background: var(--bg-raised); border: 1px solid var(--border); border-left: 4px solid var(--info);
  border-radius: 10px; padding: 11px 15px; font-size: 13px; max-width: 360px; box-shadow: 0 8px 26px rgba(0,0,0,.4); }
.toast.ok { border-left-color: var(--ok); }
.toast.error { border-left-color: var(--danger); }
.modal-back { position: fixed; inset: 0; background: rgba(5, 8, 16, .68); display: flex; align-items: center;
  justify-content: center; z-index: 900; padding: 20px; }
.modal { background: var(--bg-panel); border: 1px solid var(--border); border-radius: 14px; padding: 22px;
  width: 420px; max-width: 100%; }
.modal h3 { margin: 0 0 10px; font-size: 16px; }
.modal .row { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 900px) {
  .shell.on { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .sidebar .brand { padding: 12px 14px; }
  .nav-group { display: inline-block; margin: 4px; }
  .main { padding: 18px 14px 50px; }
}