:root{
  --bg: #EEF1F4;
  --surface: #FFFFFF;
  --surface-2: #F5F8F9;
  --border: #DAE1E7;
  --grid-line: rgba(26,36,48,0.06);
  --text: #1A2430;
  --text-muted: #5C6B7A;
  --accent: #0E7C86;
  --accent-hover: #0B6169;
  --accent-contrast: #FFFFFF;
  --shadow: rgba(20,30,40,0.10);

  --ok-bg: #E3F5EC;      --ok-fg: #157A47;   --ok-border: #A9DFC1;
  --soon-bg: #FDF3D3;    --soon-fg: #8A6108;  --soon-border: #F2D98A;
  --warn-bg: #FCE3D0;    --warn-fg: #B34A0A;  --warn-border: #F3B686;
  --urgent-bg: #FBE0DF;  --urgent-fg: #B0201E; --urgent-border: #F0A3A1;
  --urgent-glow: rgba(220,38,38,0.35);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg: #10151B;
    --surface: #171E27;
    --surface-2: #1C242E;
    --border: #2A3441;
    --grid-line: rgba(255,255,255,0.045);
    --text: #E7ECF1;
    --text-muted: #8E9CAB;
    --accent: #2DC2CE;
    --accent-hover: #55D2DC;
    --accent-contrast: #08222A;
    --shadow: rgba(0,0,0,0.45);

    --ok-bg: rgba(52,211,153,0.14);      --ok-fg: #4ADE95;   --ok-border: rgba(52,211,153,0.35);
    --soon-bg: rgba(251,191,36,0.14);    --soon-fg: #FBBF24; --soon-border: rgba(251,191,36,0.35);
    --warn-bg: rgba(251,146,60,0.16);    --warn-fg: #FB923C; --warn-border: rgba(251,146,60,0.42);
    --urgent-bg: rgba(248,113,113,0.18); --urgent-fg: #F87171; --urgent-border: rgba(248,113,113,0.5);
    --urgent-glow: rgba(248,113,113,0.45);
  }
}
:root[data-theme="dark"]{
  --bg: #10151B;
  --surface: #171E27;
  --surface-2: #1C242E;
  --border: #2A3441;
  --grid-line: rgba(255,255,255,0.045);
  --text: #E7ECF1;
  --text-muted: #8E9CAB;
  --accent: #2DC2CE;
  --accent-hover: #55D2DC;
  --accent-contrast: #08222A;
  --shadow: rgba(0,0,0,0.45);

  --ok-bg: rgba(52,211,153,0.14);      --ok-fg: #4ADE95;   --ok-border: rgba(52,211,153,0.35);
  --soon-bg: rgba(251,191,36,0.14);    --soon-fg: #FBBF24; --soon-border: rgba(251,191,36,0.35);
  --warn-bg: rgba(251,146,60,0.16);    --warn-fg: #FB923C; --warn-border: rgba(251,146,60,0.42);
  --urgent-bg: rgba(248,113,113,0.18); --urgent-fg: #F87171; --urgent-border: rgba(248,113,113,0.5);
  --urgent-glow: rgba(248,113,113,0.45);
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; }
body{
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
.mono{ font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace; }
h1,h2,h3{ text-wrap: balance; margin: 0; }
button{ font-family: inherit; }
:focus-visible{ outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden]{ display:none !important; }

/* ---------- Login ---------- */
#login-screen{
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
}
.origin-mark{
  position: fixed;
  left: 20px;
  bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  opacity: .55;
  font-size: 11px;
  letter-spacing: .04em;
}
.origin-mark svg{ width:14px; height:14px; }

.login-card{
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 20px 44px var(--shadow);
  padding: 36px 32px 30px;
}
.login-brand{
  display:flex;
  align-items:center;
  gap: 12px;
  margin-bottom: 22px;
}
.login-brand .mark{
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-contrast);
  display:flex; align-items:center; justify-content:center;
  flex-shrink: 0;
}
.login-brand .mark svg{ width: 22px; height: 22px; }
.login-brand .name{ font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.login-brand .tag{ font-size: 12.5px; color: var(--text-muted); margin-top: 1px; }

.field{ margin-bottom: 16px; }
.field label{
  display:block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 6px;
}
.input-wrap{ position: relative; }
.field input{
  width: 100%;
  padding: 11px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 14.5px;
}
.field input::placeholder{ color: var(--text-muted); opacity: .7; }
.toggle-pass{
  position:absolute; right: 8px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); padding: 4px; display:flex;
  border-radius: 6px;
}
.toggle-pass:hover{ color: var(--text); }
.toggle-pass svg{ width: 17px; height: 17px; }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap: 8px;
  border: none; border-radius: 8px; cursor: pointer;
  font-size: 14px; font-weight: 600;
  padding: 10px 16px;
  text-decoration: none;
  transition: background-color .15s ease, transform .05s ease;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{ background: var(--accent); color: var(--accent-contrast); }
.btn-primary:hover{ background: var(--accent-hover); }
.btn-ghost{ background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover{ background: var(--surface-2); }
.btn-block{ width: 100%; margin-top: 4px; }
.btn svg{ width: 16px; height: 16px; }

.login-error{
  background: var(--urgent-bg);
  border: 1px solid var(--urgent-border);
  color: var(--urgent-fg);
  font-size: 13px;
  padding: 9px 11px;
  border-radius: 8px;
  margin-bottom: 14px;
}
.shake{ animation: shake .32s ease; }
@keyframes shake{
  0%,100%{ transform: translateX(0); }
  25%{ transform: translateX(-6px); }
  75%{ transform: translateX(6px); }
}

/* ---------- Dashboard ---------- */
#dashboard{ min-height: 100vh; }
.topbar{
  position: sticky; top: 0; z-index: 5;
  display:flex; align-items:center; justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar-left{ display:flex; align-items:center; gap: 12px; }
.topbar-left .mark{
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--accent); color: var(--accent-contrast);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.topbar-left .mark svg{ width:19px; height:19px; }
.topbar-left .name{ font-size: 15.5px; font-weight: 700; letter-spacing: -.01em; line-height:1.2; }
.topbar-left .tag{ font-size: 12px; color: var(--text-muted); line-height:1.2; }
.topbar-right{ display:flex; align-items:center; gap: 10px; }

.status-banner{
  font-size: 12.5px;
  padding: 8px 24px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.status-banner.error{ background: var(--urgent-bg); color: var(--urgent-fg); }
.status-banner.info{ background: var(--surface-2); color: var(--text-muted); }

main{ max-width: 1120px; margin: 0 auto; padding: 24px; }

.stats{
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 12px;
  margin-bottom: 22px;
}
.stat-tile{
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--stripe, var(--border));
  border-radius: 10px;
  padding: 14px 16px;
}
.stat-tile .n{ font-family: "IBM Plex Mono", monospace; font-variant-numeric: tabular-nums; font-size: 26px; font-weight: 700; line-height:1; }
.stat-tile .l{ font-size: 12px; color: var(--text-muted); margin-top: 6px; }
.stat-ok{ --stripe: var(--ok-fg); }
.stat-soon{ --stripe: var(--soon-fg); }
.stat-warn{ --stripe: var(--warn-fg); }
.stat-urgent{ --stripe: var(--urgent-fg); }

.toolbar{
  display:flex; align-items:center; justify-content: space-between;
  margin-bottom: 16px; gap: 12px; flex-wrap: wrap;
}
.toolbar h2{ font-size: 15px; color: var(--text-muted); font-weight: 600; }

.add-panel{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 20px;
}
.add-panel h3{ font-size: 14px; margin-bottom: 14px; }
.add-grid{
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}
.add-grid .field{ margin-bottom: 0; }

.grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}

.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 16px 14px;
  display:flex; flex-direction: column; gap: 12px;
  box-shadow: 0 1px 2px var(--shadow);
}
.card-urgent{
  border-color: var(--urgent-border);
  animation: urgent-pulse 1.6s ease-in-out infinite;
}
@keyframes urgent-pulse{
  0%,100%{ box-shadow: 0 1px 2px var(--shadow), 0 0 0 0 var(--urgent-glow); }
  50%{ box-shadow: 0 1px 2px var(--shadow), 0 0 0 4px var(--urgent-glow); }
}
@media (prefers-reduced-motion: reduce){
  .card-urgent{ animation: none; box-shadow: 0 1px 2px var(--shadow), 0 0 0 3px var(--urgent-glow); }
}

.card-head{ display:flex; align-items:flex-start; justify-content: space-between; gap: 10px; }
.card-id{ display:flex; align-items:center; gap: 10px; min-width: 0; }
.card-id .icon{
  width: 32px; height: 32px; border-radius: 8px; flex-shrink:0;
  background: var(--surface-2); border: 1px solid var(--border);
  display:flex; align-items:center; justify-content:center; color: var(--accent);
}
.card-id .icon svg{ width: 17px; height: 17px; }
.card-id .txt{ min-width: 0; }
.card-id .pname{ font-size: 14.5px; font-weight: 700; line-height: 1.3; overflow-wrap: break-word; }
.card-id .pmodel{ font-size: 12px; color: var(--text-muted); font-family:"IBM Plex Mono",monospace; line-height: 1.3; overflow-wrap: break-word; }

.pill{
  display:inline-flex; align-items:center; gap:6px;
  font-size: 11px; font-weight: 700; letter-spacing: .02em;
  padding: 4px 9px; border-radius: 999px; white-space: nowrap; flex-shrink:0;
}
.pill .dot{ width:6px; height:6px; border-radius:50%; background: currentColor; }
.pill-ok{ background: var(--ok-bg); color: var(--ok-fg); border:1px solid var(--ok-border); }
.pill-soon{ background: var(--soon-bg); color: var(--soon-fg); border:1px solid var(--soon-border); }
.pill-warn{ background: var(--warn-bg); color: var(--warn-fg); border:1px solid var(--warn-border); }
.pill-urgent{ background: var(--urgent-bg); color: var(--urgent-fg); border:1px solid var(--urgent-border); animation: pill-blink 1.1s ease-in-out infinite; }
@keyframes pill-blink{ 0%,100%{ opacity:1; } 50%{ opacity:.55; } }
@media (prefers-reduced-motion: reduce){ .pill-urgent{ animation: none; } }

.counter{ display:flex; align-items: baseline; gap: 7px; }
.counter .num{ font-family:"IBM Plex Mono",monospace; font-variant-numeric: tabular-nums; font-size: 30px; font-weight: 700; line-height:1; }
.counter .lbl{ font-size: 11.5px; color: var(--text-muted); line-height:1.25; max-width: 130px; }

.card-foot{ display:flex; align-items:center; justify-content: space-between; gap: 10px; border-top: 1px dashed var(--border); padding-top: 12px; }
.last-date{ font-size: 11.5px; color: var(--text-muted); }
.last-date .mono{ color: var(--text); }
.card-actions{ display:flex; align-items:center; gap: 6px; }
.btn-sm{ padding: 7px 11px; font-size: 12.5px; }
.btn-icon{
  width: 30px; height: 30px; padding: 0; border-radius: 7px;
  background: transparent; border: 1px solid var(--border); color: var(--text-muted);
  display:flex; align-items:center; justify-content:center; cursor: pointer;
}
.btn-icon:hover{ color: var(--urgent-fg); border-color: var(--urgent-border); background: var(--urgent-bg); }
.btn-icon.confirming{ color: var(--urgent-fg); border-color: var(--urgent-border); background: var(--urgent-bg); width:auto; padding: 0 10px; font-size:12px; font-weight:700; gap:6px; }
.btn-icon svg{ width:15px; height:15px; }

.empty-state{
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
  border: 1px dashed var(--border);
  border-radius: 12px;
}
.empty-state svg{ width: 34px; height: 34px; margin-bottom: 10px; opacity:.6; }
.empty-state p{ margin: 4px 0 0; font-size: 13.5px; }

@media (max-width: 640px){
  .stats{ grid-template-columns: repeat(2,minmax(0,1fr)); }
  .add-grid{ grid-template-columns: 1fr; }
  .topbar{ padding: 12px 16px; }
  main{ padding: 16px; }
}