:root {
  color-scheme: dark;
  --bg: #090b12;
  --panel: #121622;
  --line: #252b3d;
  --text: #f5f6fa;
  --muted: #9ca6bc;
  --violet: #8f71ff;
  --cyan: #53dfd1;
  --danger: #ff7a8a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 75% 0, #251f4a 0, transparent 34%), var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, sans-serif;
}
header {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(5vw, 24px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand small, small { display: block; color: var(--muted); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.header-link { padding: 11px 16px; border-radius: 10px; color: var(--text); text-decoration: none; font-weight: 750; }
.header-link:focus { outline: 3px solid #53dfd166; outline-offset: 2px; }
.mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  font-weight: 900;
  color: #080a10;
}
main { width: min(1100px, 92vw); margin: 42px auto; }
.panel, .hero {
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px;
  margin-bottom: 24px;
  box-shadow: 0 18px 60px #0005;
}
.auth { width: min(480px, 100%); margin: 9vh auto; }
.session-expired-notice { padding: 12px 14px; border-left: 3px solid var(--cyan); background: #0c101a; color: #e3e7f0; }
.eyebrow { color: var(--cyan); font-weight: 800; letter-spacing: .14em; font-size: 12px; margin: 0; }
.muted { color: var(--muted); }
.notice { padding: 12px 14px; border-left: 3px solid var(--cyan); background: #0c101a; color: #cbd1df; }
h1 { font-size: clamp(32px, 5vw, 58px); letter-spacing: -.04em; line-height: 1.02; margin: 12px 0 24px; }
h2 { margin: 0 0 16px; }
h3 { margin: 0 0 10px; }
label { display: grid; gap: 7px; color: #cbd1df; margin: 12px 0; }
input, textarea, select {
  width: 100%;
  border: 1px solid #30384f;
  background: #0c101a;
  color: var(--text);
  border-radius: 10px;
  padding: 12px;
  font: inherit;
}
input[type="file"] { padding: 9px; }
textarea { min-height: 130px; resize: vertical; }
button {
  border: 0;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--violet), #6b9cff);
  color: white;
  padding: 12px 18px;
  font-weight: 750;
  cursor: pointer;
}
button:disabled { cursor: not-allowed; opacity: .48; }
button:focus, input:focus, textarea:focus, select:focus { outline: 3px solid #53dfd166; outline-offset: 2px; }
.ghost { background: transparent; border: 1px solid var(--line); }
.danger { background: transparent; border: 1px solid #733642; color: var(--danger); }
.compact-button { padding: 7px 10px; font-size: 12px; }
.row, .title { display: flex; gap: 14px; align-items: end; }
.row > * { flex: 1; }
.title { justify-content: space-between; align-items: center; }
.title > span { flex: none; }
.hidden { display: none !important; }
.list, .character-list, .voice-list { display: grid; gap: 10px; }
.item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.badge { font-size: 12px; text-transform: uppercase; color: var(--cyan); letter-spacing: .08em; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 14px; align-items: end; }
.form-grid .wide { grid-column: 1 / -1; }
.form-grid > button { justify-self: start; margin-bottom: 12px; }
.collapse-button { display: grid; place-items: center; flex: none; width: 42px; height: 42px; padding: 0; }
.collapse-icon { display: block; font-size: 20px; line-height: 1; transition: transform .16s ease; }
.collapse-button[aria-expanded="false"] .collapse-icon { transform: rotate(-90deg); }
.project-launcher { display: grid; gap: 18px; margin-top: 20px; }
.project-choice, .new-project-form { padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: #0d111b; }
.project-actions { display: flex; gap: 10px; align-items: center; }
.new-project-form > button { margin-top: 6px; }
#projectWorkspace { display: block; }
.character-card { border: 1px solid var(--line); border-radius: 16px; padding: 18px; background: #0d111b; }
.character-card pre { white-space: pre-wrap; word-break: break-word; color: #d9deeb; background: #080b12; padding: 12px; border-radius: 10px; }
.voice-list { margin: 14px 0; }
.voice-row { display: flex; justify-content: space-between; gap: 12px; align-items: center; border-top: 1px solid var(--line); padding-top: 10px; }
.voice-row > div { min-width: 0; flex: 1; }
audio { display: block; width: min(360px, 100%); height: 34px; margin-top: 7px; }
video { display: block; width: min(680px, 100%); max-height: 440px; margin-top: 10px; background: #000; }
.version-selector-panel, .version-asset-panel, .version-prompt-panel, .upload-files-panel { display: grid; gap: 16px; }
#versionHistoryContent { display: grid; }
.version-history-controls { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 10px; align-items: end; }
#versionSelect { margin: 0; }
.version-prompt-editor { display: grid; gap: 10px; }
.version-prompt-editor label { margin: 0; }
.version-prompt-editor textarea { min-height: 180px; }
.new-asset-guidance-panel p { margin: 0; font-size: clamp(20px, 2.4vw, 28px); line-height: 1.35; font-weight: 650; }
#uploadAssetsContent { display: grid; gap: 20px; }
.upload-file-form { display: grid; grid-template-columns: minmax(0, 520px); justify-content: start; gap: 14px; }
.upload-file-form > label { margin: 0; }
.upload-file-form > button { justify-self: start; }
.version-create-footer { display: flex; justify-content: flex-end; }
.version-create-footer button { min-width: min(260px, 100%); }
.version-output { display: grid; gap: 10px; }
.version-output > label { max-width: 680px; margin: 0; }
.version-output video { margin-top: 0; }
.version-asset-download { display: flex; align-items: baseline; gap: 10px; }
.version-asset-download a { font-weight: 750; }
.version-asset-actions { display: flex; justify-content: flex-end; padding-top: 16px; border-top: 1px solid var(--line); }
.version-asset-actions button { min-width: min(190px, 100%); }
.pending-output { padding: 16px; border: 1px dashed #3c4662; border-radius: 12px; color: var(--muted); }
#versionForm small { margin-top: 8px; }
.voice-upload { display: grid; grid-template-columns: 2fr 1fr; gap: 0 12px; align-items: end; border-top: 1px solid var(--line); margin-top: 14px; padding-top: 10px; }
.voice-upload .consent { grid-column: 1 / -1; display: flex; align-items: center; }
.consent input { width: auto; }
.admin-tools { margin-top: 34px; }
.admin-tools > summary { cursor: pointer; color: var(--muted); font-weight: 700; padding: 12px 2px; }
.admin-content { margin-top: 12px; }
.gpu-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin: 18px 0; }
.gpu { border: 1px solid var(--line); padding: 14px; border-radius: 14px; }
.gpu label { display: flex; }
.offline { opacity: .55; }
.password-field { position: relative; display: block; }
.password-field input { padding-right: 52px; }
.password-toggle { position: absolute; right: 5px; top: 50%; transform: translateY(-50%); background: transparent; color: var(--muted); padding: 7px 10px; line-height: 1; }
.password-toggle:hover { color: var(--text); }
.eye-icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.eye-open { display: none; }
.eye-closed { display: block; }
.password-toggle[aria-pressed="true"] .eye-open { display: block; }
.password-toggle[aria-pressed="true"] .eye-closed { display: none; }
.version-creation-progress {
  position: fixed;
  left: 20px;
  bottom: 15px;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 13px;
  width: min(390px, calc(100vw - 40px));
  padding: 14px 18px;
  border: 1px solid #405072;
  border-radius: 14px;
  background: #171d2bf5;
  box-shadow: 0 12px 36px #000a;
}
.version-creation-progress strong { display: block; }
.version-creation-progress small { margin-top: 2px; }
#versionCreationElapsed, #versionCreationEstimate { color: var(--cyan); font-variant-numeric: tabular-nums; }
.request-status-mark {
  display: grid;
  flex: none;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 2px solid #405072;
  border-radius: 50%;
  color: var(--cyan);
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
}
.version-complete-dialog {
  width: min(480px, calc(100vw - 36px));
  border: 1px solid #3a4662;
  border-radius: 20px;
  padding: 28px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 24px 80px #000c;
  text-align: center;
}
.version-complete-dialog::backdrop { background: #05070bc7; backdrop-filter: blur(3px); }
.version-complete-dialog h2 { margin: 12px 0 8px; }
.version-complete-dialog p { margin: 0 0 22px; color: #cbd1df; }
.complete-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin: 0 auto;
  border-radius: 50%;
  background: #173e39;
  color: var(--cyan);
  font-size: 30px;
  font-weight: 900;
}
.dialog-actions { display: flex; justify-content: center; gap: 10px; }
#status { position: fixed; right: 20px; bottom: 15px; background: #171d2b; padding: 10px 16px; border-radius: 10px; box-shadow: 0 5px 20px #0008; z-index: 10; }
#status:empty { display: none; }
@media (max-width: 760px) {
  .project-launcher { grid-template-columns: 1fr; }
}
@media (max-width: 650px) {
  .row, .form-grid, .voice-upload { display: grid; grid-template-columns: 1fr; }
  .dialog-actions { align-items: stretch; flex-direction: column-reverse; }
  .version-creation-progress { left: 12px; right: 12px; bottom: 12px; width: auto; }
  .form-grid .wide, .voice-upload .consent { grid-column: 1; }
  .item, .voice-row, .title { align-items: flex-start; flex-direction: column; }
  .project-panel-heading, .version-selector-panel > .title, .version-asset-panel > .title, .upload-files-panel > .title { align-items: center; flex-direction: row; }
  .project-actions { align-items: stretch; flex-direction: column; }
  .panel, .hero { padding: 18px; }
  main { margin-top: 24px; }
}