:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --line: #2a2f3a;
  --text: #e9ecf2;
  --muted: #9aa2b1;
  --accent: #ffb224;
  --accent-2: #e44a2a;
  --ok: #3fcf8e;
  --radius: 14px;
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.45;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.mono {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 18px;
  background: rgba(15, 17, 21, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.2px;
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* ---------- controls ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  border-color: #3b4252;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #15161a;
  font-weight: 800;
  width: 100%;
  padding: 12px;
}

.btn.ghost {
  background: transparent;
}

.btn.small {
  padding: 6px 10px;
  font-size: 13px;
}

.btn.icon {
  padding: 4px 8px;
  font-size: 13px;
  background: transparent;
}

.btn.danger:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.btn.recording {
  background: var(--accent-2);
  border-color: var(--accent-2);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  50% {
    opacity: 0.6;
  }
}

.file-btn {
  cursor: pointer;
}

input[type="text"],
select,
textarea {
  width: 100%;
  margin-top: 4px;
  padding: 8px 10px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: #11141a;
  color: var(--text);
  font: inherit;
}

textarea {
  resize: vertical;
}

input[type="file"] {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  max-width: 100%;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 10px;
}

label.check {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 14px;
  color: var(--text);
}

.hint {
  color: var(--muted);
  font-size: 12.5px;
  margin: 6px 0 10px;
}

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 18px;
  padding: 18px;
  max-width: 1400px;
  margin: 0 auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 15px;
  letter-spacing: 0.3px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.panel-head h2 {
  margin: 0;
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 12px;
}

/* ---------- scenes ---------- */
.scene {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 12px;
  background: var(--panel-2);
}

.scene.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}

.scene-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.scene-num {
  font-weight: 800;
  color: var(--accent);
}

.scene-role {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 99px;
  background: #2a2f3a;
  color: var(--muted);
}

.scene-tools {
  margin-left: auto;
  display: flex;
  gap: 4px;
}

.voice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.voice-status {
  margin: 0;
}

/* ---------- stage ---------- */
.stage {
  position: sticky;
  top: 70px;
  align-self: start;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}

.canvas-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 10px;
}

#preview {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 9 / 16;
  height: auto;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #000;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.transport {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.transport input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checklist li {
  padding: 4px 0;
  font-size: 13.5px;
}

.checklist li.ok {
  color: var(--ok);
}

.checklist li.todo {
  color: var(--muted);
}

#post-kit {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
}

#download-link {
  margin-top: 10px;
  width: 100%;
}

body.exporting .editor {
  pointer-events: none;
  opacity: 0.5;
}

/* ---------- responsive / mobile ---------- */
@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .stage {
    position: static;
    max-height: none;
    order: -1;
  }
}

body.mobile .layout {
  grid-template-columns: 1fr;
}

body.mobile .stage {
  position: static;
  max-height: none;
  order: -1;
}

@media (max-width: 560px) {
  .grid2 {
    grid-template-columns: 1fr;
  }

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

/* ---------- landing page ---------- */
.landing {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.05;
  margin: 0 0 16px;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  color: var(--muted);
  font-size: 17px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.cta-row .btn.primary {
  width: auto;
  padding: 12px 22px;
}

.demo-row {
  display: flex;
  gap: 14px;
  justify-content: center;
}

.demo-row video {
  width: 46%;
  max-width: 220px;
  aspect-ratio: 9 / 16;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #000;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 50px;
}

.feature {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.feature h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.steps-list {
  margin-top: 40px;
  color: var(--muted);
}

.steps-list li {
  margin-bottom: 8px;
}

.foot {
  margin-top: 50px;
  font-size: 13px;
  color: var(--muted);
}

.foot a {
  color: var(--accent);
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
  }

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

[hidden] {
  display: none !important;
}

.topbar select {
  width: auto;
  margin-top: 0;
  max-width: 320px;
}

.layout > * {
  min-width: 0;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
    padding: 12px;
  }
}

body.mobile .layout {
  grid-template-columns: minmax(0, 1fr);
  padding: 12px;
}

@media (max-width: 560px) {
  .topbar-actions select {
    flex: 1 1 100%;
    max-width: none;
  }

  .topbar-actions .btn {
    flex: 1 1 auto;
  }
}

/* ---------- channel kit ---------- */
.kit-names {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.btn.primary-lite {
  background: var(--accent);
  border-color: var(--accent);
  color: #15161a;
}

.kit-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 14px;
  align-items: center;
  margin-bottom: 10px;
}

.kit-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.kit-banner {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.kit-info dt {
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
  margin-top: 10px;
}

.kit-info dd {
  margin: 4px 0 0;
  white-space: pre-wrap;
}

.kit-plan {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.kit-plan th,
.kit-plan td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
}

.kit-plan th {
  color: var(--muted);
}

@media (max-width: 600px) {
  .kit-grid {
    grid-template-columns: 1fr;
  }
}