/* RFIDAttend design system. Flat colors only. No gradients. */

:root {
  --bg: #0b0d10;
  --panel: #14171c;
  --panel-2: #191d23;
  --border: #242830;
  --border-strong: #2f343d;
  --text: #e6e8eb;
  --text-2: #b7bcc4;
  --muted: #8a919b;
  --accent: #2f6feb;
  --accent-hover: #4a83f0;
  --accent-text: #ffffff;
  --danger: #d64545;
  --danger-hover: #e05a5a;
  --ok: #3fa96b;
  --warn: #d99a2b;

  --radius: 8px;
  --radius-sm: 6px;
  --shadow: none;
  --font: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Menlo", "Consolas", monospace;

  --nav-w: 240px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--font); }
body { font-size: 14px; line-height: 1.5; -webkit-font-smoothing: antialiased; }

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

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.01em; color: var(--text); }
h1 { font-size: 22px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }
p  { margin: 0 0 12px 0; color: var(--text-2); }

hr { border: 0; border-top: 1px solid var(--border); margin: 20px 0; }
code { font-family: var(--mono); font-size: 12px; background: var(--panel-2); padding: 1px 6px; border-radius: 4px; }

/* Layout */
.container { max-width: 1140px; margin: 0 auto; padding: 24px; }
.container-sm { max-width: 460px; margin: 0 auto; padding: 24px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1 1 auto; }
.stack { display: flex; flex-direction: column; gap: 12px; }

/* Panel/card */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 12px; margin-bottom: 16px; border-bottom: 1px solid var(--border);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-weight: 500; font-size: 13px;
  padding: 8px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--panel-2); color: var(--text);
  cursor: pointer; transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--border); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: rgba(214,69,69,0.08); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-ghost:hover { color: var(--text); background: var(--panel-2); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn i[data-lucide] { width: 15px; height: 15px; }

/* Forms */
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.04em; }
input[type="text"], input[type="email"], input[type="password"], input[type="time"], input[type="number"], input[type="date"], select, textarea {
  width: 100%;
  font: inherit; font-size: 14px;
  padding: 9px 12px;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
.field { margin-bottom: 14px; }
.field .hint { font-size: 12px; color: var(--muted); margin-top: 6px; }
.field .err { font-size: 12px; color: var(--danger); margin-top: 6px; }

/* Tables */
.table { width: 100%; border-collapse: separate; border-spacing: 0; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px; }
.table th { color: var(--muted); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; background: var(--panel-2); }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--panel-2); }
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow: auto; }

/* Badges/pills */
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 500; border: 1px solid var(--border-strong); color: var(--text-2); }
.pill-ok    { color: var(--ok);    border-color: rgba(63,169,107,.35); }
.pill-warn  { color: var(--warn);  border-color: rgba(217,154,43,.35); }
.pill-danger{ color: var(--danger);border-color: rgba(214,69,69,.35); }

/* Stat cards */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat .label { font-size: 11px; text-transform: uppercase; color: var(--muted); letter-spacing: 0.04em; }
.stat .value { font-size: 26px; font-weight: 600; margin-top: 6px; color: var(--text); }
.stat .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* Site nav */
.site-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; color: var(--text); }
.brand-mark { width: 22px; height: 22px; border: 1.5px solid var(--accent); border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; color: var(--accent); font-size: 11px; font-weight: 700; }

/* App shell */
.app { display: grid; grid-template-columns: var(--nav-w) 1fr; min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); padding: 16px 12px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar .brand { padding: 6px 8px 16px 8px; }
.side-link { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius-sm); color: var(--text-2); font-size: 13px; }
.side-link:hover { background: var(--panel-2); color: var(--text); }
.side-link.active { background: var(--panel-2); color: var(--text); }
.side-link i[data-lucide] { width: 16px; height: 16px; color: var(--muted); }
.side-link.active i[data-lucide] { color: var(--accent); }
.side-section { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); padding: 12px 10px 6px 10px; }
.side-foot { position: absolute; bottom: 12px; left: 12px; right: 12px; }
.main { padding: 24px; }
.main-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }

/* Card enrollment element */
.enroll-card {
  width: 240px; height: 150px;
  border: 2px solid var(--accent);
  border-radius: 12px;
  background: var(--panel-2);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  margin: 32px auto;
  position: relative;
}
.enroll-card .label { text-transform: uppercase; letter-spacing: 0.12em; font-size: 11px; color: var(--muted); }
.enroll-card .status { font-size: 15px; color: var(--text); }
.enroll-card i[data-lucide] { width: 34px; height: 34px; color: var(--accent); }
.enroll-card.waiting { animation: breathe 1.8s ease-in-out infinite; }
.enroll-card.captured { border-color: var(--ok); }
.enroll-card.captured i[data-lucide] { color: var(--ok); }
@keyframes breathe {
  0%,100% { box-shadow: 0 0 0 0 rgba(47,111,235,0.35); }
  50%     { box-shadow: 0 0 0 10px rgba(47,111,235,0); }
}

/* Toast */
.toast-host { position: fixed; top: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast { background: var(--panel); border: 1px solid var(--border-strong); border-left: 3px solid var(--accent); padding: 10px 14px; border-radius: var(--radius-sm); font-size: 13px; min-width: 240px; }
.toast.err { border-left-color: var(--danger); }
.toast.ok  { border-left-color: var(--ok); }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: none; align-items: center; justify-content: center; z-index: 200; padding: 16px; }
.modal-backdrop.open { display: flex; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); width: 100%; max-width: 460px; padding: 22px; }
.modal h3 { margin-bottom: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

/* Landing */
.hero { padding: 80px 24px; text-align: center; }
.hero h1 { font-size: 44px; letter-spacing: -0.02em; }
.hero p  { font-size: 16px; color: var(--text-2); max-width: 560px; margin: 16px auto 28px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 0 24px 80px; max-width: 1000px; margin: 0 auto; }
.feature { padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); }
.feature i[data-lucide] { color: var(--accent); width: 20px; height: 20px; margin-bottom: 10px; }
.feature h3 { margin-bottom: 6px; }
.feature p { margin: 0; font-size: 13px; }

/* Responsive */
@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
}
@media (max-width: 720px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  .side-foot { position: static; margin-top: 12px; }
  .main { padding: 16px; }
  .container { padding: 16px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat .value { font-size: 20px; }
}
@media (max-width: 400px) {
  .stats { grid-template-columns: 1fr; }
  .hero { padding: 48px 16px; }
}