/* BioAttendance — design system */
:root{
  --bg:#f1f5f9; --card:#ffffff; --ink:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --accent:#0f766e; --accent-2:#14b8a6; --navy:#0f172a;
  --green:#16a34a; --red:#dc2626; --amber:#d97706; --ok-bg:#dcfce7; --err-bg:#fee2e2; --warn-bg:#fef3c7;
  --radius:14px; --shadow:0 1px 3px rgba(15,23,42,.08),0 8px 24px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
code{background:#f1f5f9;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:12.5px}
.hidden{display:none!important}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.center{text-align:center}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:10px 18px;font:inherit;font-weight:600;cursor:pointer;transition:.15s;white-space:nowrap}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 4px 14px rgba(20,184,166,.35)}
.btn.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.outline{border-color:var(--accent);color:var(--accent);background:#fff}
.btn.outline:hover{background:#f0fdfa}
.btn.ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn.ghost.danger{color:var(--red)}
.btn.sm{padding:6px 12px;font-size:13px}
.btn.big{padding:14px 28px;font-size:16px;border-radius:12px}
.btn:disabled{opacity:.5;cursor:wait}

/* alerts */
.alert{border-radius:12px;padding:12px 16px;margin:0 0 18px;font-weight:500}
.alert.ok{background:var(--ok-bg);color:#166534}
.alert.err{background:var(--err-bg);color:#991b1b}
.alert.warn{background:var(--warn-bg);color:#92400e}

/* ---------- landing ---------- */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.topbar-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:14px 24px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px}
.brand-logo{font-size:24px}
.brand-name b{color:var(--accent)}
.landing{max-width:1100px;margin:0 auto;padding:64px 24px 80px}
.hero{text-align:center;margin-bottom:64px}
.hero-badge{display:inline-block;background:#ccfbf1;color:#0f766e;font-weight:600;font-size:13px;padding:6px 14px;border-radius:99px;margin-bottom:20px}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.12;margin:0 0 16px;letter-spacing:-.02em}
.hero-sub{max-width:640px;margin:0 auto 28px;color:var(--muted);font-size:17px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.feature{padding:26px}
.f-ico{font-size:30px;margin-bottom:10px}
.feature h3{margin:0 0 8px;font-size:16.5px}
.feature p{margin:0;color:var(--muted);font-size:14px}
.landing-foot{text-align:center;color:var(--muted);font-size:13px;padding:24px;border-top:1px solid var(--line)}

/* ---------- login ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(1200px 600px at 20% -10%,#ccfbf1 0%,transparent 60%),var(--bg)}
.login-card{background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:40px;width:100%;max-width:400px}
.stack{display:flex;flex-direction:column;gap:14px}
label{font-weight:600;font-size:13.5px;display:flex;flex-direction:column;gap:6px}
input,select{font:inherit;border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff;transition:.15s;width:100%}
input:focus,select:focus{outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(20,184,166,.15)}

/* ---------- admin shell ---------- */
.shell{display:flex;min-height:100vh}
.sidebar{width:230px;background:var(--navy);color:#cbd5e1;display:flex;flex-direction:column;padding:20px 14px;position:sticky;top:0;height:100vh}
.side-brand{color:#fff;margin-bottom:26px;padding-left:8px}
.sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1}
.side-link{display:flex;align-items:center;gap:12px;color:#cbd5e1;padding:11px 12px;border-radius:10px;font-weight:500;transition:.15s}
.side-link:hover{background:rgba(255,255,255,.07);color:#fff}
.side-link.active{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 4px 14px rgba(20,184,166,.4)}
.si{font-size:17px;width:22px;text-align:center}
.side-foot{display:flex;flex-direction:column}
.side-foot .btn.ghost{background:transparent;border-color:rgba(255,255,255,.2);color:#cbd5e1}
.side-foot .btn.ghost:hover{border-color:#fff;color:#fff}
.content{flex:1;padding:28px 32px 60px;max-width:1200px}
.page-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.page-head h1{font-size:26px;margin:0;letter-spacing:-.01em}
.page-date{color:var(--muted);font-size:14px;font-weight:500}
.menu-fab{display:none}

/* cards & stats */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;border:1px solid rgba(226,232,240,.6)}
.card h3{margin:0 0 14px;font-size:16px}
.card-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.card-row h3{margin:0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.stat{display:flex;gap:14px;align-items:center;padding:20px}
.stat-ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:22px;flex-shrink:0}
.stat-ico.teal{background:#ccfbf1}.stat-ico.green{background:#dcfce7}.stat-ico.red{background:#fee2e2}.stat-ico.amber{background:#fef3c7}
.stat-num{font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.stat-lbl{color:var(--muted);font-size:13px;font-weight:500}
.chart-box{position:relative;height:220px}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:10px 10px;border-bottom:2px solid var(--line)}
.tbl td{padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tr:last-child td{border-bottom:none}
.tbl.wrap{display:block;overflow-x:auto}
.tbl.wrap tr{display:table-row}
.actions{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
.tag{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:99px;letter-spacing:.02em}
.ok-tag{background:var(--ok-bg);color:#166534}.off-tag{background:#e2e8f0;color:#475569}
.late-tag{background:#fee2e2;color:#991b1b}.in-tag{background:#ccfbf1;color:#0f766e}.done-tag{background:#dbeafe;color:#1e40af}
.muted-tag{background:#f1f5f9;color:var(--muted)}
.avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;display:grid;place-items:center;font-weight:700;flex-shrink:0}
.feed{display:flex;flex-direction:column;gap:12px}
.feed-row{display:flex;align-items:center;gap:12px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.feed-row:last-child{border-bottom:none;padding-bottom:0}
.feed-main{flex:1;min-width:0}

/* toolbar & forms */
.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar-form,.search-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.toolbar .muted{margin-left:auto}
.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.inline-form{display:flex;gap:10px;align-items:end;flex-wrap:wrap;padding:10px;background:#f8fafc;border-radius:10px}
.inline-form label{flex-direction:row;align-items:center;gap:8px}
.inline-form input{width:auto}
.manual-box{background:#f8fafc;border:1px dashed var(--line);border-radius:12px;padding:16px;margin-bottom:16px}
.sep{border:none;border-top:1px solid var(--line);margin:22px 0}

/* modal */
.modal-back{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;place-items:center;z-index:50;padding:16px}
.modal-back.open{display:grid}
.modal{max-width:640px;width:100%;max-height:92vh;overflow:auto}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}

/* devices */
.token-box{display:flex;gap:10px;align-items:center;background:#0f172a;border-radius:10px;padding:12px 14px}
.token-box code{background:none;border:none;color:#5eead4;font-size:13px;word-break:break-all;flex:1}
.codebox{background:#0f172a;color:#e2e8f0;border-radius:10px;padding:14px;font-size:12.5px;overflow-x:auto;margin:10px 0}
.steps{margin:10px 0 16px;padding-left:20px;color:var(--muted)}
.steps li{margin-bottom:8px}

/* reports */
.ratebar{width:90px;height:8px;background:#e2e8f0;border-radius:99px;display:inline-block;vertical-align:middle;overflow:hidden}
.ratebar span{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:99px}

/* ---------- kiosk ---------- */
.kiosk{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;padding:32px 20px;
  background:radial-gradient(900px 500px at 85% -10%,rgba(20,184,166,.25) 0%,transparent 55%),
             radial-gradient(700px 500px at 0% 110%,rgba(15,118,110,.28) 0%,transparent 55%),var(--navy)}
.kiosk-clock{text-align:center;color:#fff}
.k-time{font-size:clamp(56px,10vw,96px);font-weight:800;letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums}
.k-date{color:#94a3b8;font-size:clamp(15px,2vw,20px);font-weight:500;margin-top:6px}
.kiosk-brand{color:#5eead4;font-size:15px;font-weight:600;letter-spacing:.12em;text-transform:uppercase}
.kiosk-box{background:#fff;border-radius:24px;box-shadow:0 20px 60px rgba(0,0,0,.35);padding:34px;display:flex;flex-direction:column;gap:16px;width:min(480px,94vw)}
.kiosk-hint{text-align:center;font-weight:600;color:var(--muted)}
.kiosk-box input{font-size:24px;text-align:center;letter-spacing:.08em;font-weight:700;padding:16px;border-radius:14px}
.kiosk-keys{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kiosk-keys button{font:inherit;font-size:22px;font-weight:700;padding:16px;border-radius:14px;border:1.5px solid var(--line);background:#f8fafc;cursor:pointer;transition:.12s}
.kiosk-keys button:active{background:#ccfbf1;border-color:var(--accent-2);transform:scale(.96)}
.kiosk-keys .k-clear{color:var(--red)}
.kiosk-result{text-align:center;color:#fff;display:flex;flex-direction:column;align-items:center;gap:14px;animation:pop .35s ease}
.k-icon{font-size:90px;line-height:1}
.kiosk-result .k-msg{font-size:clamp(22px,4vw,34px);font-weight:800}
.kiosk-timestamp{color:#94a3b8;font-size:16px}
.kiosk-admin{position:fixed;bottom:18px;right:22px;color:#475569;font-size:13px}
@keyframes pop{0%{transform:scale(.7);opacity:0}100%{transform:scale(1);opacity:1}}
.k-ok{color:#4ade80}.k-err{color:#f87171}.k-warn{color:#fbbf24}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .grid-2{grid-template-columns:1fr}
  .grid-form{grid-template-columns:1fr}
  .content{padding:18px 14px 90px}
}
@media (max-width:760px){
  .sidebar{position:fixed;left:0;top:0;bottom:0;z-index:60;transform:translateX(-100%);transition:transform .25s;height:100vh}
  .sidebar.open{transform:translateX(0)}
  .menu-fab{display:block;position:fixed;bottom:18px;left:18px;z-index:70;width:54px;height:54px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:22px;box-shadow:0 8px 24px rgba(20,184,166,.5);cursor:pointer}
  .topbar-inner{padding:12px 16px}
  .landing{padding:40px 16px 60px}
}