:root {
  color-scheme: dark;
  --bg: #10130f;
  --card: #1a1f18;
  --card-2: #232a20;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f3f6ef;
  --muted: #a7b3a0;
  --green: #3ddc84;
  --green-dim: rgba(61, 220, 132, 0.16);
  --warn: #ffb020;
  --danger: #ff5d73;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", sans-serif;
  background:
    radial-gradient(900px 420px at 50% -10%, rgba(61, 220, 132, 0.16), transparent 60%),
    var(--bg);
  color: var(--text);
}

button, input, textarea { font: inherit; color: inherit; }

.app {
  width: min(520px, calc(100% - 28px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--green);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2 { margin: 0; font-weight: 650; }

h1 { font-size: 32px; letter-spacing: -0.04em; }

.btn, .icon-btn, .tab, .link, .file span {
  border: 0;
  cursor: pointer;
}

.btn {
  border-radius: 999px;
  padding: 10px 16px;
  background: var(--card-2);
}

.btn.primary { background: var(--green); color: #062112; font-weight: 700; }
.btn:disabled { opacity: 0.55; cursor: wait; }

.banner, .error {
  margin: 0 0 14px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 93, 115, 0.12);
  color: #ffd0d7;
}

.list { display: grid; gap: 12px; }

.card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.avatar {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--green-dim);
  color: var(--green);
  font-weight: 750;
}

.meta { min-width: 0; }
.name { margin: 0; font-size: 18px; }
.sub {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.meta .link { display: inline-block; margin-top: 8px; }

.code-wrap { text-align: right; }
.code {
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  font-family: Consolas, "Cascadia Mono", monospace;
  font-size: 28px;
  letter-spacing: 0.06em;
}
.code.warn { color: var(--warn); }
.code.flash { animation: pop 0.35s ease; }

@keyframes pop {
  from { transform: translateY(4px); opacity: 0.4; }
  to { transform: none; opacity: 1; }
}

.timer {
  margin-top: 6px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.ring {
  width: 22px;
  height: 22px;
  transform: rotate(-90deg);
}
.ring circle { fill: none; stroke-width: 3; }
.ring .track { stroke: rgba(255, 255, 255, 0.08); }
.ring .value { stroke: var(--green); stroke-linecap: round; }
.ring.warn .value { stroke: var(--warn); }

.card-actions { display: flex; justify-content: flex-end; margin-top: 8px; }
.link {
  padding: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
}
.link.danger { color: var(--danger); }

.empty {
  padding: 42px 22px;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.02);
}
.empty h2 { margin-bottom: 8px; }
.empty p { margin: 0; color: var(--muted); line-height: 1.5; }
.empty-mark {
  width: 64px;
  height: 64px;
  margin: 0 auto 14px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: var(--green-dim);
  color: var(--green);
  font-weight: 800;
}

.foot {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}
.foot code { color: var(--text); }

.modal {
  width: min(460px, calc(100% - 24px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #161b15;
  color: var(--text);
  box-shadow: var(--shadow);
}
.modal::backdrop { background: rgba(0, 0, 0, 0.62); }

form { padding: 18px; }
.modal-head, .modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--card-2);
  font-size: 22px;
  line-height: 1;
}

.field { display: grid; gap: 6px; margin-top: 16px; }
.field span, .hint, .preview p { color: var(--muted); }
.field input, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  background: #10140f;
  outline: none;
}
.field textarea { resize: vertical; font-family: Consolas, monospace; }
.field input:focus, .field textarea:focus { border-color: rgba(61, 220, 132, 0.7); }

.tabs { display: flex; gap: 8px; margin-top: 16px; }
.tab {
  flex: 1;
  padding: 8px 10px;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
}
.tab.active { background: var(--green-dim); color: var(--green); }

.stage {
  position: relative;
  margin-top: 14px;
  overflow: hidden;
  border-radius: 18px;
  background: #000;
  aspect-ratio: 4 / 3;
}
video { width: 100%; height: 100%; object-fit: cover; }
.frame {
  position: absolute;
  inset: 16% 18%;
  border: 3px solid var(--green);
  border-radius: 18px;
  box-shadow: 0 0 0 999px rgba(0, 0, 0, 0.28);
}
.hint { margin: 10px 0 0; font-size: 13px; line-height: 1.45; }

.file { display: block; margin-top: 14px; }
.file input { display: none; }
.file span {
  display: block;
  padding: 22px;
  text-align: center;
  border-radius: 16px;
  background: var(--card-2);
}

.preview {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 16px;
  background: var(--green-dim);
}
.preview-title { margin: 0; color: var(--green) !important; font-weight: 700; }
.preview p { margin: 4px 0; }

.modal-actions { margin-top: 16px; }
.modal-actions .btn { flex: 1; }

@media (max-width: 560px) {
  .card { grid-template-columns: auto 1fr; }
  .code-wrap { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; }
  .timer, .card-actions { margin-top: 0; }
}