:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --ink: #1c1f24;
  --muted: #636a73;
  --line: #d9d5ca;
  --blue: #2357d6;
  --green: #087b5b;
  --red: #bf3f34;
  --gold: #9f6b00;
  --soft-blue: #e9efff;
  --soft-green: #e5f5ef;
  --soft-red: #fae9e6;
  --shadow: 0 18px 42px rgba(28, 31, 36, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--bg);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 24px;
  border-right: 1px solid var(--line);
  background: #fbfaf7;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  color: white;
  background: var(--ink);
  font-weight: 800;
}

.brand h1,
.brand p,
.panel h2,
.topbar h2,
.section-header h2,
.insight-panel h3 {
  margin: 0;
}

.brand h1 {
  font-size: 18px;
}

.brand p,
.hint,
.eyebrow,
.metric span,
.field span,
.panel-title span,
.video-meta,
.score-detail {
  color: var(--muted);
}

.brand p {
  margin-top: 2px;
  font-size: 13px;
}

.panel,
.script-box {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

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

.muted-panel {
  background: #f0eee8;
  box-shadow: none;
}

.panel-title {
  margin-bottom: 14px;
}

.panel-title span,
.eyebrow {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.panel-title h2,
.section-header h2 {
  font-size: 18px;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.field span {
  font-size: 13px;
  font-weight: 700;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

input {
  height: 42px;
  padding: 0 12px;
}

textarea {
  min-height: 90px;
  padding: 12px;
  resize: vertical;
  line-height: 1.5;
}

select {
  height: 42px;
  padding: 0 12px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #efede7;
}

.segment {
  min-height: 36px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
}

.segment.is-active {
  color: var(--ink);
  background: #fff;
  box-shadow: 0 4px 12px rgba(28, 31, 36, 0.08);
}

.primary-button,
.secondary-button,
.ghost-button {
  min-height: 42px;
  border-radius: 8px;
  font-weight: 800;
}

.primary-button {
  width: 100%;
  border: 1px solid var(--ink);
  color: #fff;
  background: var(--ink);
}

.secondary-button {
  border: 1px solid var(--ink);
  color: var(--ink);
  background: #fff;
}

.ghost-button {
  border: 1px solid var(--line);
  color: var(--ink);
  background: #fff;
}

.full {
  width: 100%;
}

.hint {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.5;
}

.weight-list {
  display: grid;
  gap: 10px;
}

.weight-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.weight-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.workspace {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.topbar h2 {
  max-width: 760px;
  font-size: 28px;
  line-height: 1.25;
}

.top-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.save-actions,
.template-toolbar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}

.top-actions .ghost-button {
  padding: 0 14px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.metric {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.metric span {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 700;
}

.metric strong {
  font-size: 24px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 20px;
  align-items: start;
}

.results-area,
.insight-area {
  min-width: 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.section-header.compact {
  margin-bottom: 10px;
}

.section-header .secondary-button {
  padding: 0 14px;
}

.video-list {
  display: grid;
  gap: 10px;
}

.video-card {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) 104px;
  grid-template-areas:
    "thumb main score"
    "thumb actions score";
  gap: 8px 14px;
  align-items: stretch;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.thumb {
  grid-area: thumb;
  position: relative;
  height: 100%;
  min-height: 126px;
  aspect-ratio: auto;
  overflow: hidden;
  border-radius: 6px;
  background: linear-gradient(135deg, #273447, #2357d6 48%, #d06b43);
  background-position: center;
  background-size: cover;
}

.thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(rgba(28, 31, 36, 0.03), rgba(28, 31, 36, 0.42));
  pointer-events: none;
}

.thumb span {
  position: absolute;
  z-index: 1;
  left: 10px;
  bottom: 9px;
  right: 10px;
  color: white;
  font-size: 12px;
  font-weight: 800;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
}

.type-badge {
  position: absolute;
  z-index: 1;
  top: 8px;
  left: 8px;
  padding: 4px 7px;
  border-radius: 6px;
  color: #fff;
  background: rgba(28, 31, 36, 0.74);
  font-size: 11px;
  font-weight: 800;
}

.video-main {
  grid-area: main;
  min-width: 0;
}

.video-title {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.35;
}

.video-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 12px;
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.stat {
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
  padding: 6px 8px;
  border-radius: 6px;
  background: #f4f2ec;
}

.stat span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.stat strong {
  font-size: 13px;
  overflow-wrap: anywhere;
}

.score-box {
  grid-area: score;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  border-left: 1px solid #ebe7de;
  padding-left: 12px;
}

.score-circle {
  display: grid;
  place-items: center;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  color: var(--ink);
  background: conic-gradient(var(--green) calc(var(--score) * 1%), #ebe7de 0);
}

.score-circle span {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #fff;
  font-size: 21px;
  font-weight: 900;
}

.card-actions {
  grid-area: actions;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.card-actions a,
.card-actions button {
  display: grid;
  place-items: center;
  min-height: 32px;
  min-width: 88px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  background: #fff;
  text-decoration: none;
  font-size: 12px;
  font-weight: 800;
}

.card-actions button.is-disabled {
  color: #8b8f95;
  background: #f1f0eb;
  cursor: not-allowed;
}

.insight-panel,
.plan-panel {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.insight-panel {
  margin-bottom: 14px;
}

.script-result-panel {
  display: none;
}

.script-result-panel.is-visible {
  display: block;
}

.empty-state {
  color: var(--muted);
  background: #f7f5ef;
  box-shadow: none;
}

.insight-panel p,
.plan-panel p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.insight-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.insight-list li {
  padding: 10px;
  border-radius: 8px;
  background: #f4f2ec;
  line-height: 1.45;
}

.script-box {
  margin-bottom: 18px;
}

.script-box textarea {
  margin-bottom: 10px;
}

.stage-three {
  margin-top: 4px;
}

.plan-panel {
  display: none;
  margin-top: 12px;
}

.plan-panel.is-visible {
  display: block;
}

.draft-editor {
  display: none;
  margin-top: 18px;
}

.custom-format-field {
  display: none;
}

.custom-format-field.is-visible {
  display: grid;
}

.draft-editor.is-visible {
  display: block;
}

.plan-card {
  padding: 12px;
  border-radius: 8px;
  background: var(--soft-blue);
}

.script-draft {
  width: 100%;
  min-height: 360px;
  margin-top: 10px;
}

.plan-card + .plan-card {
  margin-top: 10px;
}

.plan-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .workspace,
  .sidebar {
    padding: 18px;
  }

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

  .topbar h2 {
    font-size: 22px;
  }

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

  .video-card {
    grid-template-columns: 1fr;
    grid-template-areas:
      "thumb"
      "main"
      "score"
      "actions";
  }

  .score-circle {
    justify-self: start;
  }

  .score-box {
    justify-content: flex-start;
    min-height: auto;
    border-left: 0;
    padding-left: 0;
  }

  .thumb {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .stat-row {
    align-items: flex-start;
  }
}

@media (max-width: 460px) {
  .field-row,
  .save-actions,
  .template-toolbar,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .segmented {
    grid-template-columns: 1fr;
  }
}