:root {
  color-scheme: dark;
  --bg: #08090b;
  --panel: #121418;
  --panel-2: #191d23;
  --line: rgba(255, 255, 255, 0.1);
  --text: #f5f7fb;
  --muted: #9aa4b2;
  --accent: #76e27e;
  --accent-2: #78a8ff;
  --danger: #ff7777;
  --radius: 8px;
  --font: "SF Pro Display", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(130deg, rgba(118, 226, 126, 0.08), transparent 32%),
    linear-gradient(230deg, rgba(120, 168, 255, 0.08), transparent 30%),
    var(--bg);
  font-family: var(--font);
}

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

button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #1b2027;
  color: var(--text);
  padding: 9px 12px;
  cursor: pointer;
}

button:hover {
  border-color: rgba(255, 255, 255, 0.24);
}

a {
  color: var(--accent);
  text-decoration: none;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0c0f13;
  color: var(--text);
  padding: 10px 12px;
  outline: none;
}

textarea {
  resize: vertical;
  line-height: 1.55;
}

small {
  color: var(--muted);
}

.shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.topbar,
.section-head,
.workspace,
.task-card,
.row,
.row-title,
.switch-line,
.provider-tabs,
.mode-tabs,
.task-actions,
.asset-links {
  display: flex;
  align-items: center;
}

.topbar {
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

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

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(30px, 4vw, 54px);
  letter-spacing: 0;
}

h2 {
  font-size: 28px;
}

h3 {
  font-size: 18px;
}

p {
  color: var(--muted);
  line-height: 1.55;
}

.provider-tabs,
.mode-tabs {
  gap: 8px;
}

.provider-tabs button,
.mode-tabs button {
  background: rgba(255, 255, 255, 0.04);
}

.provider-tabs button.active,
.mode-tabs button.active,
.primary {
  background: linear-gradient(135deg, var(--accent), #b5f26e);
  color: #071009;
  border-color: transparent;
  font-weight: 700;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 20, 24, 0.92);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.workspace {
  align-items: stretch;
  gap: 16px;
}

.main-panel {
  flex: 1 1 auto;
  min-width: 0;
}

.side-panel {
  flex: 0 0 440px;
  min-width: 0;
}

.panel {
  padding: 18px;
}

.section-head {
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.section-head.small {
  margin-bottom: 12px;
}

.form-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
}

.form-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-block {
  display: grid;
  gap: 7px;
}

.field-block > span,
.row-title span {
  color: #dce4ee;
  font-size: 13px;
  font-weight: 700;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.check input {
  width: auto;
}

.switch-line {
  gap: 12px;
  margin: 14px 0;
}

.switch-line select {
  max-width: 180px;
}

.row-section {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.upload-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #1b2027;
  color: var(--text);
  padding: 9px 12px;
  cursor: pointer;
}

.upload-btn:hover {
  border-color: rgba(255, 255, 255, 0.24);
}

.row-title {
  justify-content: space-between;
  gap: 10px;
}

.row {
  gap: 8px;
}

.row input,
.row textarea {
  flex: 1 1 auto;
}

.row select {
  flex: 0 0 150px;
}

.row button {
  flex: 0 0 auto;
}

.storyboard-row input {
  flex: 0 0 80px;
}

.muted-section {
  opacity: 0.48;
}

.media-grid,
.subject-library,
.frame-grid {
  display: grid;
  gap: 10px;
}

.media-grid {
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
}

.frame-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.media-chip {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0c0f13;
  padding: 8px;
}

.media-chip div {
  aspect-ratio: 16 / 10;
  border-radius: 6px;
  overflow: hidden;
  background: #080a0d;
}

.media-chip img,
.media-chip video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media-chip span {
  font-size: 13px;
  color: var(--muted);
}

.subject-composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 8px;
}

.subject-library {
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
}

.subject-card {
  display: grid;
  justify-items: start;
  gap: 5px;
  text-align: left;
  background: #10151b;
}

.subject-card.active {
  border-color: rgba(118, 226, 126, 0.75);
  background: rgba(118, 226, 126, 0.12);
}

.subject-card small,
.subject-card span {
  color: var(--muted);
}

.storyboard-row {
  display: grid;
  grid-template-columns: 72px 100px 110px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: stretch;
}

.foot-check {
  margin-top: 14px;
}

pre {
  margin: 0;
  max-height: 720px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: #d9e4ef;
  background: #0b0e12;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  line-height: 1.45;
}

.tasks-panel {
  margin-top: 16px;
}

.tasks-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.tasks-list.compact {
  grid-template-columns: 1fr;
  margin-top: 10px;
}

.task-card {
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-2);
  padding: 14px;
  flex-wrap: wrap;
}

.history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 16px;
}

.preview-empty {
  min-height: 260px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: #0b0e12;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 22px;
}

.preview-empty span {
  color: var(--muted);
  max-width: 300px;
}

.result-video {
  width: 100%;
  border-radius: var(--radius);
  background: #050608;
  border: 1px solid var(--line);
}

.empty-inline {
  color: var(--muted);
  border: 1px dashed rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 14px;
}

.task-card strong,
.task-card small {
  display: block;
}

.task-card small {
  margin-top: 5px;
  max-width: 520px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-actions,
.asset-links {
  gap: 8px;
}

.asset-links {
  width: 100%;
}

.asset-links a {
  border: 1px solid rgba(118, 226, 126, 0.28);
  border-radius: var(--radius);
  padding: 7px 10px;
  background: rgba(118, 226, 126, 0.08);
}

.error {
  width: 100%;
  color: var(--danger);
}

.empty {
  color: var(--muted);
  padding: 16px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: min(420px, calc(100vw - 48px));
  border: 1px solid rgba(118, 226, 126, 0.32);
  border-radius: var(--radius);
  background: #111a13;
  color: var(--text);
  padding: 13px 15px;
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.34);
}

@media (max-width: 1100px) {
  .workspace {
    flex-direction: column;
  }

  .side-panel {
    flex-basis: auto;
  }

  .tasks-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 14px;
  }

  .topbar,
  .section-head {
    align-items: stretch;
    flex-direction: column;
  }

  .provider-tabs,
  .mode-tabs {
    overflow-x: auto;
  }

  .form-grid.two {
    grid-template-columns: 1fr;
  }

  .row {
    align-items: stretch;
    flex-direction: column;
  }

  .subject-composer,
  .frame-grid,
  .storyboard-row {
    grid-template-columns: 1fr;
  }

  .row select {
    flex-basis: auto;
  }
}