:root {
  color-scheme: dark;
  --bg: #101114;
  --panel: #181a1f;
  --panel-strong: #20242b;
  --text: #f5f2ea;
  --muted: #a9adb6;
  --line: #343945;
  --accent: #4bd4b0;
  --accent-strong: #24b99b;
  --warm: #ffb36b;
  --danger: #ff6f7e;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(145deg, rgba(75, 212, 176, 0.09), transparent 34%),
    linear-gradient(325deg, rgba(255, 179, 107, 0.1), transparent 32%),
    var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
}

button,
textarea,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.app {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 18px;
  height: 100vh;
  min-height: 0;
  padding: 18px;
}

.editor,
.prompter {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(24, 26, 31, 0.92);
  box-shadow: var(--shadow);
}

.editor {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
  border-radius: 8px;
  padding: 20px;
}

.editor__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.95;
}

.script-label {
  color: var(--muted);
  font-size: 0.9rem;
}

textarea {
  flex: 1;
  min-height: 180px;
  width: 100%;
  resize: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  background: #0f1115;
  color: var(--text);
  padding: 16px;
  font-size: 1rem;
  line-height: 1.7;
}

textarea:focus,
.screen:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(75, 212, 176, 0.16);
}

.quick-actions,
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ghost-btn,
.tool-btn,
.primary-btn {
  min-height: 42px;
  border-radius: 8px;
  padding: 0 16px;
  color: var(--text);
}

.ghost-btn,
.tool-btn {
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.ghost-btn:hover,
.tool-btn:hover {
  border-color: rgba(75, 212, 176, 0.65);
}

.primary-btn {
  min-width: 128px;
  background: var(--accent);
  color: #08120f;
  font-weight: 800;
}

.primary-btn:hover {
  background: var(--accent-strong);
}

.prompter {
  display: grid;
  grid-template-rows: auto minmax(360px, 1fr) auto auto auto;
  gap: 14px;
  min-height: 0;
  border-radius: 8px;
  padding: 18px;
}

.prompter__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.95rem;
}

.state-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--warm);
}

.is-playing .state-dot {
  background: var(--accent);
  box-shadow: 0 0 18px rgba(75, 212, 176, 0.7);
}

.time {
  font-variant-numeric: tabular-nums;
}

.screen {
  position: relative;
  overflow: auto;
  min-height: 0;
  max-height: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  background: #050608;
  scroll-behavior: auto;
}

.screen::-webkit-scrollbar {
  width: 10px;
}

.screen::-webkit-scrollbar-track {
  background: #08090c;
}

.screen::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: #3b414e;
}

.prompt-text {
  min-height: 100%;
  padding: 42vh 9vw 50vh;
  color: var(--text);
  font-size: 64px;
  line-height: 1.5;
  font-weight: 700;
  white-space: pre-wrap;
  word-break: break-word;
  text-align: center;
}

.guide {
  pointer-events: none;
  position: sticky;
  z-index: 2;
  height: 90px;
}

.guide--top {
  top: 0;
  margin-bottom: -90px;
  background: linear-gradient(#050608, transparent);
}

.guide--bottom {
  bottom: 0;
  margin-top: -90px;
  background: linear-gradient(transparent, #050608);
}

.screen::after {
  content: "";
  pointer-events: none;
  position: sticky;
  top: 50%;
  display: block;
  height: 2px;
  margin-top: -1px;
  background: linear-gradient(90deg, transparent, rgba(255, 179, 107, 0.8), transparent);
}

.settings {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.settings label {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  padding: 12px;
  color: var(--muted);
}

.settings input {
  min-width: 70px;
  accent-color: var(--accent);
}

output {
  min-width: 44px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.keyboard-hints {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.84rem;
}

.keyboard-hints span {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 9px;
  background: rgba(255, 255, 255, 0.03);
}

.mirror .prompt-text {
  transform: scaleX(-1);
}

body.fullscreen-mode {
  overflow: hidden;
  background: #050608;
}

.fullscreen-mode .app {
  display: block;
  width: 100vw;
  height: 100vh;
  padding: 0;
  overflow: hidden;
}

.fullscreen-mode .editor,
.fullscreen-mode .keyboard-hints {
  display: none;
}

.fullscreen-mode .prompter,
.prompter:fullscreen {
  position: relative;
  display: block;
  width: 100vw;
  height: 100vh;
  padding: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: #050608;
}

.fullscreen-mode .prompter__topbar,
.prompter:fullscreen .prompter__topbar {
  position: fixed;
  z-index: 5;
  top: 22px;
  left: 28px;
  right: 28px;
  padding: 0;
}

.fullscreen-mode .screen,
.prompter:fullscreen .screen {
  width: 100vw;
  height: 100vh;
  max-height: none;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.fullscreen-mode .screen:focus,
.prompter:fullscreen .screen:focus {
  border-color: transparent;
  box-shadow: none;
}

.fullscreen-mode .prompt-text,
.prompter:fullscreen .prompt-text {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 42vh clamp(36px, 12vw, 220px) 52vh;
}

.fullscreen-mode .controls,
.fullscreen-mode .settings,
.prompter:fullscreen .controls,
.prompter:fullscreen .settings {
  position: fixed;
  left: 50%;
  z-index: 6;
  transform: translateX(-50%);
}

.fullscreen-mode .controls,
.prompter:fullscreen .controls {
  bottom: 26px;
  justify-content: center;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(5, 6, 8, 0.72);
  backdrop-filter: blur(18px);
}

.fullscreen-mode .settings,
.prompter:fullscreen .settings {
  top: 68px;
  bottom: auto;
  width: min(820px, calc(100vw - 48px));
  opacity: 0.18;
  transition: opacity 160ms ease;
}

.fullscreen-mode .settings:hover,
.fullscreen-mode .settings:focus-within,
.prompter:fullscreen .settings:hover,
.prompter:fullscreen .settings:focus-within {
  opacity: 1;
}

@media (max-width: 960px) {
  .app {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100vh;
  }

  textarea {
    min-height: 260px;
  }

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

  .prompt-text {
    padding-inline: 8vw;
    font-size: 48px;
  }
}

@media (max-width: 560px) {
  .app {
    padding: 10px;
  }

  .editor,
  .prompter {
    padding: 14px;
  }

  .prompt-text {
    font-size: 38px;
  }

  .primary-btn,
  .tool-btn,
  .ghost-btn {
    flex: 1 1 auto;
  }
}