:root {
  --bg: #0b1020;
  --panel: #131a30;
  --panel-2: #1a2240;
  --border: #273055;
  --text: #e6ebf5;
  --muted: #8d9bbf;
  --accent: #6ea8ff;
  --accent-2: #8ad4ff;
  --success: #4ade80;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(0,0,0,.35);
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fb;
    --panel: #ffffff;
    --panel-2: #f0f3fa;
    --border: #dbe1ec;
    --text: #0f1729;
    --muted: #5b6680;
    --shadow: 0 6px 18px rgba(15,23,41,.08);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
}

.header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .2px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #0b1020; font-weight: 800;
}
.header nav { display: flex; gap: 6px; flex-wrap: wrap; }
.header nav button {
  background: transparent; border: 1px solid transparent; color: var(--muted);
  padding: 8px 12px; border-radius: 10px; cursor: pointer; font: inherit;
}
.header nav button.active, .header nav button:hover {
  color: var(--text); background: var(--panel-2); border-color: var(--border);
}
.header .user { color: var(--muted); font-size: 13px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.grid { display: grid; gap: 14px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
}

h1 { font-size: 22px; margin: 0 0 6px; }
h2 { font-size: 17px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 0 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.muted { color: var(--muted); }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(110,168,255,.18);
}

.btn {
  appearance: none; border: 1px solid var(--border); background: var(--panel-2);
  color: var(--text); padding: 10px 14px; border-radius: 10px; cursor: pointer; font: inherit;
  display: inline-flex; align-items: center; gap: 8px; transition: transform .05s, background .15s;
}
.btn:hover { background: var(--border); }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent; color: #0b1020; font-weight: 600;
}
.btn.primary:hover { filter: brightness(1.05); }
.btn.danger { color: #fff; background: var(--danger); border-color: transparent; }
.btn.ghost { background: transparent; }
.btn[disabled] { opacity: .6; cursor: not-allowed; }
.btn.block { width: 100%; justify-content: center; }

.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 8px; border-radius: 999px; font-size: 12px;
  background: var(--panel-2); color: var(--muted); border: 1px solid var(--border);
}
.tag.success { background: rgba(74,222,128,.12); color: var(--success); border-color: rgba(74,222,128,.3); }
.tag.warn { background: rgba(251,191,36,.12); color: var(--warn); border-color: rgba(251,191,36,.3); }
.tag.danger { background: rgba(248,113,113,.14); color: var(--danger); border-color: rgba(248,113,113,.35); }
.tag.info { background: rgba(110,168,255,.14); color: var(--accent); border-color: rgba(110,168,255,.35); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
tr:hover td { background: var(--panel-2); }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.stat { padding: 16px; }
.stat .num { font-size: 28px; font-weight: 700; letter-spacing: -.5px; }
.stat .lbl { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; margin-top: 4px; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--panel); border: 1px solid var(--border); padding: 12px 16px;
  border-radius: 12px; box-shadow: var(--shadow); z-index: 50;
  max-width: 90vw;
}
.toast.success { border-color: rgba(74,222,128,.4); }
.toast.error { border-color: rgba(248,113,113,.5); }

.divider { height: 1px; background: var(--border); margin: 16px 0; }

.hide { display: none !important; }

/* Kiosk page */
.kiosk-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 20px;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(110,168,255,.12), transparent),
              radial-gradient(900px 500px at 100% 100%, rgba(138,212,255,.10), transparent),
              var(--bg);
}
.kiosk-card {
  width: min(440px, 100%);
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 20px; padding: 24px; box-shadow: var(--shadow);
  text-align: center;
}
.qr-frame {
  background: white; padding: 14px; border-radius: 14px; display: inline-block;
  border: 1px solid var(--border);
}
.qr-frame img { display: block; width: 100%; max-width: 320px; height: auto; }
.countdown { font-family: var(--mono); font-size: 32px; font-weight: 700; margin-top: 10px; }

/* Clock page */
.clock-wrap { min-height: 100vh; display: grid; place-items: start center; padding: 24px 16px; }
.clock-card { width: min(440px, 100%); }
.search {
  position: relative;
}
.search-results {
  position: absolute; left: 0; right: 0; top: 100%; margin-top: 4px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  max-height: 280px; overflow: auto; z-index: 5; box-shadow: var(--shadow);
}
.search-results .item {
  padding: 10px 12px; cursor: pointer; border-bottom: 1px solid var(--border);
}
.search-results .item:last-child { border-bottom: none; }
.search-results .item:hover, .search-results .item.active { background: var(--panel-2); }

.pin-input { letter-spacing: 10px; text-align: center; font-size: 22px; font-family: var(--mono); }
.tab-toggle { display: inline-flex; background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 4px; }
.tab-toggle button {
  background: transparent; border: none; color: var(--muted); padding: 8px 14px; border-radius: 8px; cursor: pointer; font: inherit;
}
.tab-toggle button.active { background: var(--panel); color: var(--text); }

.kbd {
  font-family: var(--mono); background: var(--panel-2); padding: 2px 6px; border-radius: 6px;
  border: 1px solid var(--border); font-size: 12px;
}