:root {
  color-scheme: dark;
  --bg: #0a0d12;
  --panel: #14181f;
  --panel-alt: #1c222b;
  --text: #f3f4f6;
  --muted: #98a0ab;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-alt: #eef0f3;
  --text: #1a1d22;
  --muted: #6a7079;
  --border: rgba(0, 0, 0, 0.12);
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: linear-gradient(180deg, #0a0d12 0%, #05070a 100%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="light"] body {
  background: linear-gradient(180deg, #f6f7f9 0%, #e8eaee 100%);
}

body {
  overflow: hidden;
}

button,
input {
  font: inherit;
}

.file-input-native {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

button {
  cursor: pointer;
  border: 0;
  border-radius: 999px;
  padding: 0.6rem 1rem;
  background: var(--panel-alt);
  color: var(--text);
  transition: background 0.18s ease, color 0.18s ease;
}

button:hover {
  filter: brightness(1.08);
}

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100svh;
  min-height: 0;
  position: relative;
}

.app.app-picker .topbar {
  display: none;
}

.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(7, 12, 18, 0.92);
  backdrop-filter: blur(18px);
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  transition: transform 0.25s ease;
}

.topbar.auto-hidden {
  transform: translateY(-100%);
}

.topbar-left {
  justify-self: start;
  min-width: 0;
}

.topbar-center {
  justify-self: center;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
}

.topbar-right {
  justify-self: end;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

#toggle-play {
  background: #1a6a44;
  color: #ffffff;
  border-color: transparent;
}

#toggle-play[aria-pressed="true"] {
  background: #9a2e22;
  color: #ffffff;
  border-color: transparent;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.icon-btn svg {
  flex-shrink: 0;
}

#toggle-play .icon-pause,
#toggle-play .label-pause {
  display: none;
}

#toggle-play[aria-pressed="true"] .icon-play,
#toggle-play[aria-pressed="true"] .label-play {
  display: none;
}

#toggle-play[aria-pressed="true"] .icon-pause,
#toggle-play[aria-pressed="true"] .label-pause {
  display: inline;
}

[data-theme="light"] .topbar {
  background: rgba(255, 255, 255, 0.88);
}

.hint,
.settings-dropdown output,
.picker-hint {
  color: var(--muted);
}

.current-file {
  font-size: 1.05rem;
  color: var(--text);
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
  display: inline-block;
}

.ghost-btn {
  background: transparent;
  border: 1px solid var(--border);
}

.settings-wrap {
  position: relative;
}

.settings-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  width: min(360px, 92vw);
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(16, 24, 35, 0.96);
  box-shadow: var(--shadow);
  display: grid;
  gap: 1rem;
  z-index: 40;
}

[data-theme="light"] .settings-dropdown {
  background: rgba(255, 255, 255, 0.98);
}

.settings-tabs {
  display: flex;
  gap: 0.3rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

.settings-tab {
  flex: 1;
  background: transparent;
  border: 0;
  padding: 0.45rem 0.6rem;
  font-size: 0.9rem;
  border-radius: 999px;
  color: var(--muted);
}

.settings-tab.is-active {
  background: var(--panel-alt);
  color: var(--text);
}

.settings-tab:hover:not(.is-active) {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

[data-theme="light"] .settings-tab:hover:not(.is-active) {
  background: rgba(0, 0, 0, 0.05);
}

.settings-panel {
  display: grid;
  gap: 1rem;
}

.settings-foot {
  display: flex;
  justify-content: flex-end;
  padding-top: 0.4rem;
  border-top: 1px solid var(--border);
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.settings-dropdown label {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.45rem 1rem;
}

.settings-dropdown input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
}

.segmented {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.segmented button {
  background: transparent;
  border-radius: 0;
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
}

.segmented button[aria-pressed="true"] {
  background: var(--text);
  color: var(--bg);
}

.switch {
  background: transparent;
  border: 1px solid var(--border);
  padding: 0.3rem 0.85rem;
  font-size: 0.85rem;
  min-width: 3rem;
}

.switch[aria-checked="true"] {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.stage.no-mask {
  -webkit-mask-image: none;
  mask-image: none;
}

.picker-wrap,
.stage-wrap {
  min-width: 0;
  min-height: 0;
}

.picker-wrap {
  flex: 1;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 1rem;
  padding: 2rem;
}

.picker-logo {
  display: flex;
  justify-content: center;
}

.picker-logo-icon {
  width: 88px;
  height: 88px;
  display: block;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.24);
  object-fit: cover;
}

.dropzone {
  width: min(520px, 100%);
  min-height: 240px;
  display: grid;
  place-items: center;
  gap: 0.35rem;
  padding: 1.5rem 2rem;
  border-radius: 20px;
  border: 2px dashed rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.03);
  text-align: center;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
  cursor: pointer;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .dropzone {
  border-color: rgba(0, 0, 0, 0.2);
  background: rgba(255, 255, 255, 0.6);
}

[data-theme="light"] .dropzone:hover,
[data-theme="light"] .dropzone.dragover {
  border-color: rgba(0, 0, 0, 0.45);
  background: rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .picker-logo-icon,
[data-theme="light"] .dropzone-icon {
  border-color: rgba(0, 0, 0, 0.15);
  background: rgba(0, 0, 0, 0.04);
}

.dropzone-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 1.6rem;
  font-weight: 300;
}

.dropzone strong {
  display: block;
  font-size: 1.15rem;
}

.dropzone small {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.stage-wrap {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  overflow: hidden;
}

.stage-shell {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

[data-theme="light"] .stage {
  scrollbar-color: rgba(0, 0, 0, 0.35) transparent;
}

[data-theme="light"] .stage::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .teleprompter blockquote {
  color: var(--muted);
  border-left-color: rgba(0, 0, 0, 0.3);
}

.focus-line {
  position: absolute;
  left: 3%;
  right: 3%;
  top: var(--focus-pos, 50%);
  height: 16px;
  transform: translateY(-50%);
  background: transparent;
  cursor: ns-resize;
  pointer-events: auto;
  z-index: 3;
}

.focus-line::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
  background: #e1493b;
  pointer-events: none;
}

.focus-line.dragging {
  cursor: grabbing;
}

.stage {
  position: relative;
  z-index: 1;
  height: 100%;
  overflow: auto;
  overscroll-behavior: contain;
  touch-action: pan-y;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
  -webkit-mask-image: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.22) 0%,
    rgba(0, 0, 0, 0.22) calc(var(--focus-pos, 50%) - 18%),
    rgba(0, 0, 0, 1) calc(var(--focus-pos, 50%) - 4%),
    rgba(0, 0, 0, 1) calc(var(--focus-pos, 50%) + 4%),
    rgba(0, 0, 0, 0.22) calc(var(--focus-pos, 50%) + 18%),
    rgba(0, 0, 0, 0.22) 100%
  );
  mask-image: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.22) 0%,
    rgba(0, 0, 0, 0.22) calc(var(--focus-pos, 50%) - 18%),
    rgba(0, 0, 0, 1) calc(var(--focus-pos, 50%) - 4%),
    rgba(0, 0, 0, 1) calc(var(--focus-pos, 50%) + 4%),
    rgba(0, 0, 0, 0.22) calc(var(--focus-pos, 50%) + 18%),
    rgba(0, 0, 0, 0.22) 100%
  );
}

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

.stage::-webkit-scrollbar-track {
  background: transparent;
}

.stage::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 999px;
}

.teleprompter {
  margin: 0 auto;
  padding-top: 14vh;
  padding-bottom: 28vh;
  max-width: 960px;
}

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

.teleprompter h1,
.teleprompter h2,
.teleprompter h3 {
  margin: 0 0 1.2em;
  line-height: 1.2;
  color: var(--text);
}

.teleprompter p,
.teleprompter li,
.teleprompter blockquote {
  margin: 0 0 var(--paragraph-gap, 24px);
}

.teleprompter ul,
.teleprompter ol {
  margin: 0 0 var(--paragraph-gap, 24px);
  padding-left: 1.4em;
}

.teleprompter blockquote {
  border-left: 4px solid rgba(255, 255, 255, 0.35);
  margin-left: 0;
  padding-left: 1rem;
  color: var(--muted);
}

.teleprompter hr {
  border: 0;
  height: 2rem;
}

.hidden {
  display: none !important;
}

@media (max-width: 720px) {
  button {
    min-height: 44px;
  }

  .topbar {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 0.6rem;
    padding: calc(env(safe-area-inset-top, 0px) + 0.65rem) 0.9rem 0.8rem;
    position: relative;
  }

  .topbar.auto-hidden {
    transform: none;
  }

  .topbar-left,
  .topbar-center,
  .topbar-right {
    align-self: center;
  }

  .topbar-center {
    justify-self: stretch;
  }

  .current-file {
    max-width: 100%;
    font-size: 0.95rem;
    text-align: left;
  }

  .topbar-right {
    gap: 0.5rem;
  }

  .settings-wrap {
    position: static;
  }

  #back-to-picker-sidebar,
  #toggle-settings,
  #toggle-play {
    min-width: 44px;
    min-height: 44px;
    padding: 0.6rem;
    justify-content: center;
  }

  #back-to-picker-sidebar span,
  #toggle-settings span,
  #toggle-play .label-play,
  #toggle-play .label-pause {
    display: none;
  }

  .settings-dropdown {
    position: absolute;
    left: 0.75rem;
    right: 0.75rem;
    top: calc(100% + 0.75rem);
    bottom: auto;
    width: auto;
    max-height: min(70svh, 560px);
    overflow: auto;
    border-radius: 18px;
  }

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

  .settings-dropdown output {
    justify-self: start;
  }

  .stage-wrap {
    padding: 0 0 env(safe-area-inset-bottom, 0px);
  }

  .stage-shell {
    padding: 0 0.8rem 0.8rem;
  }

  .dropzone {
    min-height: min(40svh, 320px);
    padding: 1.25rem;
  }

  .picker-logo-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
  }

  .dropzone-icon {
    width: 64px;
    height: 64px;
  }

  .dropzone strong {
    font-size: 1rem;
  }

  .dropzone small {
    font-size: 0.8rem;
  }

  .teleprompter {
    padding-top: 10svh;
    padding-bottom: 22svh;
  }
}