:root{
  --bg:#EFF2F8; --surface:#ffffff; --ink:#17255A; --soft:#5B647B; --faint:#98A0B4; --line:#E3E7F1;
  --navy:#17255A; --navy-dark:#0D1836; --navy-tint:#EAEDF7;
  --accent:#C51697;
  --accent-dark:color-mix(in srgb, var(--accent) 82%, #000);
  --accent-tint:color-mix(in srgb, var(--accent) 11%, #fff);
  --blue:#4F97CD; --blue-tint:#E9F2FA;
  --ok:#1F9D57; --ok-tint:#E4F5EC;
  --amber:#C9861F; --amber-tint:#FBF1DC; --red:#D14A4A; --red-tint:#FADEDE;
  --shadow:0 1px 2px rgba(23,37,90,.05), 0 10px 30px rgba(23,37,90,.07);
  --shadow-sm:0 1px 2px rgba(23,37,90,.06);
}
html[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0E1424; --surface:#182236; --ink:#E9EDF7; --soft:#A6B1CB; --faint:#717D99; --line:#2A3550;
  --navy:#16233f; --navy-dark:#0B1226; --navy-tint:#212C46;
  --blue:#5AA0D6; --blue-tint:#1B2C3E;
  --accent-tint:#341027;
  --ok-tint:#153021; --amber-tint:#33280F; --red-tint:#3A1D1D;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 12px 34px rgba(0,0,0,.5);
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
}
#themeToggle{position:fixed;top:12px;right:12px;z-index:100;width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:var(--surface);color:var(--soft);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);transition:color .15s,border-color .15s}
#themeToggle:hover{color:var(--accent);border-color:var(--accent)}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:'DM Sans',system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
input,button,select,textarea{font-family:inherit}
button{cursor:pointer}
a{color:var(--accent)}
h1,h2,h3{font-family:'DM Sans',system-ui,sans-serif}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#CDD3E2;border-radius:20px;border:3px solid var(--bg)}
@keyframes fadeUp{from{transform:translateY(10px)}to{transform:none}}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-12px)}to{opacity:1;transform:translate(-50%,0)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- generic ---------- */
.hidden{display:none !important}
.fade{animation:fadeUp .4s ease both}
.mono{font-family:'DM Sans',ui-monospace,monospace}
.grow{flex:1;min-width:0}
.ell{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.muted{color:var(--faint)}
.center{text-align:center}

/* ---------- inputs ---------- */
.field{display:block;font-size:13px;font-weight:600;color:var(--soft);margin-bottom:7px}
.input{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:12px;font-size:15px;background:var(--surface);color:var(--ink);outline:none;transition:border-color .15s}
.input:focus{border-color:var(--accent)}
textarea.input{resize:vertical;min-height:74px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 18px;border:none;border-radius:12px;font-size:15px;font-weight:600;transition:background .15s,border-color .15s,color .15s}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 30%,transparent)}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent)}
.btn-block{width:100%}
.btn-lg{padding:15px}
.btn:disabled{opacity:.55;cursor:default}
.link{background:none;border:none;color:var(--accent);font-weight:600;font-size:13.5px;padding:0}
.link-soft{background:none;border:none;color:var(--soft);font-weight:500;font-size:13.5px;padding:0}

/* ---------- cards ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm)}
.pill{font-size:11.5px;font-weight:600;padding:4px 9px;border-radius:20px}
.avatar{display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-family:'DM Sans';flex-shrink:0}

/* ---------- auth screens ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:28px}
.auth-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:34px 32px;box-shadow:var(--shadow);animation:fadeUp .45s ease both}
.auth-plain{width:100%;max-width:420px;animation:fadeUp .5s ease both}
.grad-a{background:radial-gradient(120% 90% at 100% 0%, var(--navy-tint), var(--bg) 60%)}
.grad-b{background:radial-gradient(120% 90% at 0% 0%, var(--navy-tint), var(--bg) 60%)}
.grad-c{background:radial-gradient(120% 90% at 50% 0%, var(--navy-tint), var(--bg) 60%)}
.logo{height:52px;width:auto;display:block;margin-bottom:26px}
.logo-sm{height:34px;width:auto;display:block;margin:0 auto 20px}
.code-input{width:100%;padding:15px;border:1.5px solid var(--line);border-radius:13px;font-family:'DM Sans';font-size:26px;font-weight:600;text-align:center;letter-spacing:.45em;outline:none;background:var(--bg)}
.code-input:focus{border-color:var(--accent);background:#fff}
.icon-badge{width:52px;height:52px;border-radius:15px;background:var(--accent-tint);display:flex;align-items:center;justify-content:center;margin:0 auto 18px}

/* ---------- app shell ---------- */
.shell{display:flex;min-height:100vh}
.sidebar{width:250px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:20px 16px;position:sticky;top:0;height:100vh}
.nav-btn{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:11px;border:none;background:transparent;color:var(--soft);font-size:14.5px;font-weight:500;text-align:left;width:100%}
.nav-btn:hover{background:var(--bg)}
.nav-btn.active{background:var(--accent-tint);color:var(--accent);font-weight:600}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:16px;padding:20px 30px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--surface) 85%,transparent);backdrop-filter:blur(8px);position:sticky;top:0;z-index:5;padding-right:64px}
.content{padding:26px 30px;overflow:auto}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}
.stat{padding:18px}
.stat .num{font-family:'DM Sans';font-size:30px;font-weight:700;margin-top:6px;letter-spacing:-.02em}
.table-head,.table-row{display:grid;gap:10px;align-items:center}
.table-head{padding:14px 20px;border-bottom:1px solid var(--line);font-size:11.5px;font-weight:700;color:var(--faint);text-transform:uppercase;letter-spacing:.05em}
.table-row{padding:13px 20px;border-bottom:1px solid var(--line);font-size:13.5px}
.table-row:hover{background:var(--bg)}

/* ---------- mobile employee shell ---------- */
.phone{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}
.phone-head{display:flex;align-items:center;gap:12px;padding:16px 18px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;padding-right:58px}
.phone-body{flex:1;overflow:auto;padding:16px 16px 90px}
.tabbar{position:fixed;bottom:0;left:0;right:0;max-width:480px;margin:0 auto;display:flex;border-top:1px solid var(--line);padding:8px 6px 12px;background:var(--surface)}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;border:none;background:none;font-size:10px;font-weight:600;color:var(--faint)}
.tab.active{color:var(--accent)}
.clock-card{border-radius:22px;padding:26px 22px;text-align:center;color:#fff;background:linear-gradient(150deg,var(--navy),var(--navy-dark));box-shadow:0 14px 30px rgba(23,37,90,.3)}

/* ---------- modal ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(13,24,54,.45);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;padding:22px;z-index:60}
.modal{width:100%;max-width:460px;background:var(--surface);border-radius:20px;box-shadow:0 24px 60px rgba(13,24,54,.35);animation:fadeUp .3s ease both;overflow:hidden}

/* ---------- toast ---------- */
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;padding:12px 20px;border-radius:12px;font-size:13.5px;font-weight:500;box-shadow:0 12px 30px rgba(13,24,54,.3);z-index:90;animation:toastIn .25s ease both;max-width:90vw;text-align:center}
.toast.err{background:var(--red)}

/* ---------- spinner ---------- */
.spinner{width:18px;height:18px;border:2.5px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
.method-card{display:flex;align-items:center;gap:14px;padding:16px;border:1.5px solid var(--line);border-radius:14px;background:var(--surface);text-align:left;width:100%;transition:border-color .15s}
.method-card:hover{border-color:var(--accent)}
.method-ic{width:42px;height:42px;border-radius:12px;background:var(--accent-tint);display:flex;align-items:center;justify-content:center;flex-shrink:0}

.menu-btn{display:none;width:40px;height:40px;flex-shrink:0;border-radius:11px;border:1px solid var(--line);background:var(--surface);color:var(--ink);align-items:center;justify-content:center}
.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(13,24,54,.5);z-index:69;opacity:0;transition:opacity .25s}
.sidebar-backdrop.show{display:block;opacity:1}
@media(max-width:760px){
  .menu-btn{display:flex}
  .sidebar{position:fixed;left:0;top:0;bottom:0;height:100vh;width:82vw;max-width:300px;z-index:70;transform:translateX(-100%);transition:transform .26s ease;box-shadow:0 20px 60px rgba(13,24,54,.4)}
  .sidebar.open{transform:none}
  .main{width:100%}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .content{padding:18px 14px}
  .topbar{padding:14px 14px;padding-right:60px}
}
@media(max-width:420px){
  .stat-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat .num{font-size:25px}
}