:root {
  --bg0: #0a0e14;
  --bg1: #131b26;
  --surface: rgba(19, 27, 38, 0.72);
  --surface-strong: rgba(23, 32, 45, 0.88);
  --ink: #eaf0f8;
  --muted: #91a1b6;
  --accent: #4aa3f5;
  --accent-2: #1f6fb8;
  --danger: #e25c5c;
  --ok: #3ecf8e;
  --line: rgba(234, 240, 248, 0.09);
  --line-strong: rgba(234, 240, 248, 0.16);
  --radius: 16px;
  --radius-sm: 11px;
  --shadow: 0 1px 0 rgba(255,255,255,0.03) inset, 0 18px 50px -20px rgba(0,0,0,0.6);
  --font: "IBM Plex Sans", "Segoe UI", -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg0);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: color-mix(in srgb, var(--accent) 40%, transparent); }

:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: 2px;
}

.bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1100px 620px at 8% -12%, rgba(74, 163, 245, 0.18), transparent 58%),
    radial-gradient(780px 460px at 96% 4%, rgba(62, 207, 142, 0.10), transparent 54%),
    radial-gradient(600px 600px at 50% 120%, rgba(96, 120, 255, 0.08), transparent 60%),
    linear-gradient(165deg, #090d13, #0d1420 48%, #080c12);
  z-index: -1;
}
.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: 0.5;
  mix-blend-mode: overlay;
}

.shell {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.brand {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 2.25rem;
}
.brand h1 {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 650;
  letter-spacing: -0.025em;
}
.tag {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}
.mark {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background:
    conic-gradient(from 210deg, var(--accent), #7ad0ff, var(--ok), var(--accent));
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 12px 40px rgba(61,156,240,0.25);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  backdrop-filter: blur(16px) saturate(1.1);
  -webkit-backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.panel h2 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.panel p { color: var(--muted); line-height: 1.5; font-size: 0.9rem; margin: 0.35rem 0; }
.panel p strong { color: var(--ink); font-weight: 600; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.span-2 { grid-column: span 2; }
@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
}

label { display: grid; gap: 0.45rem; margin: 0.85rem 0; font-size: 0.85rem; font-weight: 500; color: var(--muted); }
input {
  background: rgba(6, 10, 16, 0.85);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 0.72rem 0.85rem;
  font: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
input::placeholder { color: color-mix(in srgb, var(--muted) 75%, transparent); }
input:hover { border-color: color-mix(in srgb, var(--line-strong) 160%, transparent); }
input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 60%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
button {
  appearance: none;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 0.68rem 1.1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  color: white;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  box-shadow: 0 1px 0 rgba(255,255,255,0.18) inset, 0 6px 18px -8px rgba(74,163,245,0.7);
  transition: transform 0.08s ease, box-shadow 0.15s ease, filter 0.15s ease, background 0.15s ease;
}
button:hover { filter: brightness(1.06); box-shadow: 0 1px 0 rgba(255,255,255,0.22) inset, 0 10px 26px -8px rgba(74,163,245,0.8); }
button:active { transform: translateY(1px); }
button.ghost {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  box-shadow: none;
  font-weight: 500;
}
button.ghost:hover {
  background: color-mix(in srgb, var(--ink) 7%, transparent);
  border-color: color-mix(in srgb, var(--line-strong) 160%, transparent);
  filter: none;
}
button.danger, .danger button.danger {
  background: linear-gradient(180deg, #ef6b6b, #b83b3b);
  box-shadow: 0 1px 0 rgba(255,255,255,0.15) inset, 0 6px 18px -8px rgba(226,92,92,0.6);
}
.inline { display: flex; flex-wrap: wrap; gap: 0.55rem; align-items: center; }
.inline input { flex: 1; min-width: 120px; margin: 0; }

.hidden { display: none !important; }
.error { color: var(--danger); min-height: 1.2em; font-size: 0.85rem; }
.muted { color: var(--muted); font-size: 0.85rem; }
.row { display: flex; justify-content: space-between; align-items: center; }

.pair-box {
  margin-top: 1.1rem;
  padding: 1.4rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px dashed color-mix(in srgb, var(--accent) 45%, transparent);
  background:
    radial-gradient(120% 140% at 50% 0%, rgba(74,163,245,0.14), transparent 70%),
    rgba(74, 163, 245, 0.05);
  text-align: center;
}
.pair-code {
  font-family: var(--mono);
  font-size: 2.1rem;
  letter-spacing: 0.3em;
  font-weight: 700;
  text-indent: 0.3em;
  background: linear-gradient(180deg, #ffffff, #bcd9f6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.list { list-style: none; padding: 0; margin: 0.85rem 0 0; }
.list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}
.list li:first-child { border-top: 0; }

.table { display: grid; gap: 0.55rem; margin-top: 0.85rem; }
.task {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  column-gap: 0.75rem;
  padding: 0.35rem 0.5rem 0.35rem 0.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(0,0,0,0.22);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.task:hover { border-color: var(--line-strong); background: rgba(0,0,0,0.3); }
.task.open { border-color: color-mix(in srgb, var(--accent) 35%, var(--line-strong)); background: rgba(0,0,0,0.32); }

.task-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  min-width: 0;
  padding: 0.5rem 0.45rem;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  box-shadow: none;
  color: var(--ink);
  font: inherit;
  font-weight: 400;
  text-align: left;
  cursor: pointer;
  transition: none;
}
.task-head:hover { filter: none; background: transparent; box-shadow: none; }
.task-head:active { transform: none; }

.chev {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(-45deg);
  transition: transform 0.18s ease;
}
.task.open .chev { transform: rotate(45deg); }

.task-main {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}
.task .state {
  flex: 0 0 auto;
  display: inline-flex;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
}
.state-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.state-bad { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); background: color-mix(in srgb, var(--danger) 13%, transparent); }
.state-active { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); background: color-mix(in srgb, var(--accent) 13%, transparent); }
.state-muted { color: var(--muted); border-color: var(--line-strong); background: color-mix(in srgb, var(--ink) 6%, transparent); }

.task .prompt {
  font-size: 0.9rem;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.task.open .prompt { white-space: normal; }

.task-cancel { flex: 0 0 auto; }

.task-details {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.55rem;
  margin: 0.25rem 0.35rem 0.5rem;
  padding: 0.85rem 0.95rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.28);
}
.drow {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 0.75rem;
  align-items: baseline;
  font-size: 0.85rem;
}
@media (max-width: 560px) {
  .drow { grid-template-columns: 1fr; gap: 0.15rem; }
}
.dk {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.dv { color: var(--ink); line-height: 1.5; word-break: break-word; white-space: pre-wrap; }
.dv.mono { font-family: var(--mono); font-size: 0.8rem; }
a.dv { color: var(--accent); text-decoration: none; }
a.dv:hover { text-decoration: underline; }

.panel.danger {
  border-color: color-mix(in srgb, var(--danger) 30%, var(--line));
}
.panel.danger h2 { color: color-mix(in srgb, var(--danger) 85%, var(--ink)); }
.panel.danger .ghost { margin-left: 0.5rem; }

.hint-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1rem;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--ok) 30%, transparent);
  background: color-mix(in srgb, var(--ok) 10%, transparent);
  color: color-mix(in srgb, var(--ok) 88%, var(--ink));
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.hint-chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 22%, transparent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}
@media (prefers-reduced-motion: reduce) {
  .hint-chip .dot { animation: none; }
  button, input, .task { transition: none; }
}