:root {
  color-scheme: light;
  --qps-bg: #f5f5f7;
  --qps-surface: #fff;
  --qps-text: #111;
  --qps-text-secondary: #707075;
  --qps-line: rgba(0, 0, 0, .07);
  --qps-sidebar: 228px;
}
* { box-sizing: border-box; }
html { min-width: 320px; background: var(--qps-bg); }
body { margin: 0; color: var(--qps-text); background: var(--qps-bg); font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; }
button { cursor: pointer; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid #58585f; outline-offset: 4px; }
h1, h2, p { margin-top: 0; }
h1 { margin: 0; font-size: clamp(28px, 3vw, 40px); letter-spacing: -.05em; line-height: 1.15; font-weight: 650; }
h2 { margin-bottom: 0; font-size: 23px; letter-spacing: -.03em; font-weight: 620; }
.app-shell { display: grid; grid-template-columns: var(--qps-sidebar) minmax(0, 1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 40px 18px 24px; background: #fff; border-right: 1px solid var(--qps-line); }
.brand-block { padding: 0 14px 38px; }
.brand-kicker, .eyebrow { margin: 0 0 12px; color: #88888d; font-size: 10px; font-weight: 600; letter-spacing: .18em; }
.brand { margin: 0 0 8px; font-size: 24px; letter-spacing: .1em; font-weight: 650; }
.brand-caption { margin: 0; color: var(--qps-text-secondary); font-size: 12px; }
.nav-list { display: grid; gap: 8px; }
.nav-button { display: flex; align-items: center; gap: 15px; width: 100%; min-height: 48px; border: 0; border-radius: 14px; background: transparent; color: #727277; text-align: left; padding: 12px 15px; font-size: 13px; }
.nav-button:hover:not(:disabled) { background: var(--qps-bg); color: #111; }
.nav-button.is-active { background: #161618; color: #fff; }
.nav-button.is-active:hover { background: #29292c; color: #fff; }
.nav-index { font-size: 10px; opacity: .55; font-variant-numeric: tabular-nums; }
.environment-card { display: flex; align-items: flex-start; gap: 10px; margin-top: auto; padding: 18px 14px; border-top: 1px solid var(--qps-line); font-size: 11px; }
.environment-card strong { display: block; font-size: 10px; letter-spacing: .08em; }
.environment-card span:not(.signal-dot) { display: block; margin-top: 5px; color: #88888d; }
.signal-dot { width: 6px; height: 6px; margin-top: 5px; border-radius: 50%; background: #69967d; }
.workspace { min-width: 0; width: 100%; max-width: 1800px; padding: 0 clamp(24px, 4vw, 64px); margin: 0 auto; }
.topbar { min-height: 148px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.session-controls { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 8px; }
.session-actor { margin-right: 8px; color: #8b8b90; font-size: 11px; }
#admin-main { min-height: calc(100vh - 220px); padding: 10px 0 56px; }
.page-stack, .section-stack { display: grid; gap: 24px; }
.panel { min-width: 0; background: var(--qps-surface); border: 1px solid var(--qps-line); border-radius: 24px; }
.panel-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 30px 32px 0; }
.panel-header p { margin: 10px 0 0; color: var(--qps-text-secondary); font-size: 13px; line-height: 1.7; }
.panel-body { padding: 28px 32px 32px; }
.collection-panel { background: transparent; border: 0; border-radius: 0; }
.collection-panel > .panel-header { padding: 0; }
.collection-panel > .panel-body { padding: 26px 0 0; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.metric { display: block; min-height: 162px; padding: 24px; border: 1px solid transparent; border-radius: 19px; background: var(--qps-bg); color: #111; text-align: left; transition: background 160ms, border-color 160ms; }
.metric:hover:not(:disabled) { background: #ededf0; border-color: #d9d9df; }
.metric-label { display: block; color: #77777d; font-size: 12px; }
.metric-value { display: block; margin-top: 22px; font-size: 42px; line-height: 1; font-weight: 600; letter-spacing: -.05em; }
.overview-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.button { min-height: 37px; border: 1px solid #dfdfe3; border-radius: 999px; padding: 8px 16px; background: #fff; color: #303034; font-size: 12px; font-weight: 550; white-space: nowrap; transition: background 160ms, border-color 160ms; }
.button:hover:not(:disabled) { border-color: #98989f; background: #f8f8fa; }
.button.is-primary { color: #fff; border-color: #171719; background: #171719; }
.button.is-primary:hover:not(:disabled) { background: #353539; }
.button.is-quiet { background: transparent; }
button:disabled { opacity: .42; cursor: not-allowed; }
.list-toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.list-toolbar > .muted { margin: 0 auto 0 6px; }
.list-toolbar .button[aria-pressed="false"] { border-color: transparent; background: transparent; }
.list-toolbar .button[aria-pressed="false"]:hover { background: #eaeaec; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: start; }
.video-card { min-width: 0; overflow: hidden; background: #fff; border: 1px solid var(--qps-line); border-radius: 22px; }
.video-thumbnail { position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; padding: 0; overflow: hidden; border: 0; background: #24262a; color: #fff; isolation: isolate; text-align: left; }
.thumbnail-fallback { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; background: radial-gradient(ellipse at 30% 15%, #676b70, transparent 70%), linear-gradient(130deg, #32353b, #111214); color: #fff8; font-size: 8px; letter-spacing: .3em; }
.thumbnail-brand { font-size: 44px; letter-spacing: -.04em; font-weight: 300; color: #fffa; }
.video-thumbnail img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.video-thumbnail::after { position: absolute; inset: 0; content: ""; background: linear-gradient(transparent 50%, #0008); z-index: 1; }
.play-icon { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: grid; place-items: center; width: 46px; height: 46px; padding-left: 3px; border-radius: 50%; background: #fffe; color: #18181b; box-shadow: 0 4px 20px #0002; z-index: 2; font-size: 15px; }
.video-thumbnail:hover:not(:disabled) .play-icon { background: #fff; }
.thumbnail-caption { position: absolute; left: 18px; bottom: 13px; z-index: 2; font-size: 11px; font-weight: 500; }
.thumbnail-duration { position: absolute; right: 14px; bottom: 12px; padding: 2px 6px; border-radius: 5px; background: #0006; font-size: 10px; font-variant-numeric: tabular-nums; z-index: 2; }
.video-thumbnail:disabled { opacity: .75; }
.video-thumbnail:disabled .play-icon { display: none; }
.video-card-body { display: grid; gap: 14px; padding: 22px; }
.card-caption { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.internal-code { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; letter-spacing: .06em; color: #8b8b91; }
.video-title { font-size: 18px; line-height: 1.45; letter-spacing: -.025em; overflow-wrap: anywhere; }
.video-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; color: #8b8b91; font-size: 10px; font-variant-numeric: tabular-nums; }
.format-tag { padding: 2px 5px; border: 1px solid #e5e5e9; border-radius: 4px; color: #65656b; font-size: 9px; font-weight: 600; }
.card-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; border-top: 1px solid var(--qps-line); padding-top: 16px; margin-top: 3px; }
.card-actions .button { min-height: 31px; padding: 5px 12px; font-size: 11px; }
.status-chip { display: inline-flex; align-items: center; flex-shrink: 0; padding: 4px 9px; border-radius: 999px; background: #f0f0f3; color: #85858b; font-size: 10px; white-space: nowrap; }
.status-chip.is-success { color: #4f7d65; background: #edf4ef; }
.status-chip.is-danger { color: #a3625a; background: #faf0ee; }
.buyer-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; align-items: start; }
.buyer-card .panel-header { padding: 26px 26px 0; }
.buyer-card .panel-header h2 { font-size: 20px; overflow-wrap: anywhere; }
.buyer-card .panel-header p { font-size: 10px; letter-spacing: .04em; overflow-wrap: anywhere; }
.buyer-card .panel-body { padding: 20px 26px 26px; gap: 20px; }
.granted-videos { display: grid; gap: 14px; }
.granted-video { display: grid; grid-template-columns: 116px minmax(0, 1fr); align-items: center; gap: 14px; }
.granted-title { margin: 0 0 8px; font-size: 12px; font-weight: 600; overflow-wrap: anywhere; }
.video-thumbnail.is-compact { border-radius: 9px; }
.is-compact .play-icon { width: 26px; height: 26px; font-size: 9px; }
.is-compact .thumbnail-brand { font-size: 24px; }
.is-compact .thumbnail-caption, .is-compact .thumbnail-fallback > span:last-child { display: none; }
.is-compact .thumbnail-duration { right: 5px; bottom: 4px; font-size: 8px; }
.action-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.muted { margin: 0; color: var(--qps-text-secondary); font-size: 12px; }
.notice { margin: 0; padding: 18px 20px; border-radius: 13px; color: #74747b; background: #f0f0f3; font-size: 13px; }
.modal { width: min(620px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); margin: auto; padding: 0; border: 1px solid var(--qps-line); border-radius: 25px; color: #111; background: #fff; box-shadow: 0 32px 120px #0003; overscroll-behavior: contain; }
.modal.is-wide { width: min(960px, calc(100vw - 32px)); }
.modal::backdrop { background: #17171b80; backdrop-filter: blur(7px); }
.modal-header { position: sticky; top: 0; z-index: 1; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 25px 28px; background: #fffffff5; border-bottom: 1px solid var(--qps-line); }
.modal-header h2 { font-size: 21px; overflow-wrap: anywhere; }
.modal-header p { margin-top: 8px; }
.modal-body { padding: 26px 28px 30px; }
.modal-body .button.is-primary { justify-self: start; min-width: 120px; }
.preview-player { display: block; width: 100%; max-height: 65dvh; aspect-ratio: 16 / 9; border-radius: 14px; background: #111; }
.inline-form, .login-form { display: grid; gap: 20px; }
.field-label { display: grid; gap: 8px; color: #68686e; font-size: 12px; }
input, select { width: 100%; min-width: 0; min-height: 44px; padding: 11px 14px; border: 1px solid #e1e1e5; border-radius: 12px; background: #fafafb; color: #18181b; }
input[type="file"] { font-size: 12px; padding: 8px; }
input::file-selector-button { margin-right: 12px; padding: 8px 13px; border: 0; border-radius: 8px; background: #e9e9ed; color: #303034; cursor: pointer; }
input[type="checkbox"] { width: 17px; min-height: 17px; height: 17px; flex-shrink: 0; accent-color: #171719; }
.video-choices { display: grid; gap: 14px; max-height: 360px; overflow-y: auto; margin: 0; padding: 16px; border: 1px solid #e8e8ec; border-radius: 14px; }
.video-choices legend { padding: 0 6px; color: #74747b; font-size: 12px; }
.video-choice-row { display: grid; grid-template-columns: 100px minmax(0, 1fr); align-items: center; gap: 9px 14px; }
.video-choice-row .video-meta { grid-column: 2; }
.video-choice { display: flex; align-items: center; gap: 10px; font-size: 12px; overflow-wrap: anywhere; cursor: pointer; }
.one-time-key { color: #111; padding: 20px; border-radius: 14px; background: #f1f1f4; font: 19px/1.6 monospace; overflow-wrap: anywhere; user-select: all; }
.login-panel { max-width: 520px; margin: 50px auto; }
.toast { position: fixed; right: 28px; bottom: 28px; z-index: 100; max-width: min(460px, calc(100vw - 32px)); padding: 15px 22px; border-radius: 16px; background: #202023; color: #fff; box-shadow: 0 12px 40px #0002; opacity: 0; pointer-events: none; transition: opacity 160ms; font-size: 13px; }
.toast.is-visible { opacity: 1; }
.footer-note { display: flex; justify-content: space-between; gap: 16px; padding: 20px 0; border-top: 1px solid var(--qps-line); color: #9b9ba1; font-size: 10px; letter-spacing: .04em; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 101; padding: 9px 18px; border-radius: 999px; background: #111; color: #fff; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
@media (min-width: 1850px) { .video-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 1200px) {
  :root { --qps-sidebar: 200px; }
  .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workspace { padding: 0 28px; }
  .buyer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .app-shell { display: block; }
  .sidebar { position: static; height: auto; padding: 22px 20px 16px; border-right: 0; border-bottom: 1px solid var(--qps-line); }
  .brand-block { padding: 0 0 18px; }
  .brand-kicker, .brand-caption, .environment-card { display: none; }
  .brand { margin: 0; font-size: 21px; }
  .nav-list { display: flex; gap: 6px; }
  .nav-button { min-height: 40px; justify-content: center; padding: 10px 8px; font-size: 11px; }
  .nav-index { display: none; }
  .workspace { padding: 0 20px; }
  .topbar { min-height: 134px; padding: 24px 0; align-items: flex-start; }
  .session-actor { display: none; }
  .session-controls .button { padding: 6px 11px; min-height: 32px; }
  .eyebrow { font-size: 8px; }
  .panel-header { padding: 24px 22px 0; }
  .panel-body { padding: 22px; }
  .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .video-card-body { padding: 16px; gap: 12px; }
  .video-title { font-size: 15px; }
  .card-caption { align-items: flex-start; flex-wrap: wrap; }
  .metric { min-height: 135px; padding: 20px; }
  .metric-value { font-size: 36px; }
  .list-toolbar > .muted { width: 100%; margin: 5px 0; order: 3; }
  .footer-note { flex-direction: column; gap: 6px; }
  .modal-header, .modal-body { padding: 20px; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .video-card-body { padding: 22px; }
  .video-title { font-size: 18px; }
  .panel-header h2 { font-size: 21px; }
  .granted-video { grid-template-columns: 96px minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: .01ms !important; scroll-behavior: auto !important; } }