/* Deck Editor — dark editing surface, ultramarine accent, mono metering. */

:root {
  --bg: #101318;
  --panel: #171b22;
  --panel-2: #1d222b;
  --line: #262c37;
  --line-strong: #39414f;
  --text: #e7eaf1;
  --muted: #8f96a6;
  --accent: #6e7cff;
  --accent-ink: #fff;
  --danger: #e07a6a;
  --ok: #6fbf8f;
  --overlay: rgba(16, 19, 24, 0.72);
  --radius: 10px;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}

/* theme.js stamps data-theme pre-paint: saved choice wins, else the browser's
 * prefers-color-scheme. */
:root[data-theme="light"] {
  --bg: #f4f5f8;
  --panel: #ffffff;
  --panel-2: #edeff4;
  --line: #dcdfe6;
  --line-strong: #b8bfcc;
  --text: #1b1f27;
  --muted: #5d6472;
  --accent: #3547e8;
  --accent-ink: #ffffff;
  --danger: #c14b3a;
  --ok: #257a4d;
  --overlay: rgba(244, 245, 248, 0.78);
  color-scheme: light;
}
.theme-toggle::after { content: "☾"; }
:root[data-theme="light"] .theme-toggle::after { content: "☀"; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14.5px/1.5 var(--sans);
  display: flex;
  flex-direction: column;
  height: 100vh;
}
.mono { font-family: var(--mono); }
.hidden { display: none !important; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.spacer { flex: 1; }

button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--panel-2);
  color: var(--text);
  padding: 6px 13px;
  cursor: pointer;
}
button:disabled { opacity: 0.45; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button.primary:hover:not(:disabled) { filter: brightness(1.12); }
button.ghost { background: transparent; }
button.ghost:hover:not(:disabled) { background: var(--panel-2); }
button.big { padding: 9px 20px; font-size: 15px; }

select {
  font: inherit;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 5px 8px;
}
a { color: var(--accent); }

/* --- header / toolbar ----------------------------------------------------- */

#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.brand { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
.brand h1 { margin: 0; font-size: 16.5px; white-space: nowrap; }
.doc-title { color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.credits { font-size: 12px; color: var(--muted); }
.topup { font-size: 12px; text-decoration: none; }
.topup:hover { text-decoration: underline; }

/* Toolbar lives inside the top bar (single header row). */
.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

/* --- workspace -------------------------------------------------------------- */

#workspace {
  display: flex;
  flex: 1;
  min-height: 0;
}
#thumbs {
  width: 196px;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-shrink: 0;
}
.thumb {
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  cursor: pointer;
  overflow: hidden;
}
.thumb.active { border-color: var(--accent); }
.thumb-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 7px;
  font-size: 11px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.thumb-head input { margin-left: auto; accent-color: var(--accent); }
.badge {
  font-size: 10px;
  padding: 0 5px;
  border-radius: 4px;
  background: var(--panel-2);
  border: 1px solid var(--line-strong);
  color: var(--muted);
}
.badge.err { color: var(--danger); border-color: var(--danger); }
.thumb-frame { background: #fff; }

#stage-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
/* The renderer fit-measures its container (#stage) and re-fits on its
 * resize; effective scale = fitScale x zoomPercent/100. The stage width must
 * therefore be INDEPENDENT of its content: a shrink-wrapping stage (flex
 * centering / margin:auto) turns zoom into a feedback loop — content grows,
 * container grows, fitScale grows, repeat until the 33M-px browser cap.
 * width:100% of the scroll wrap is stable; zoomed content overflows the
 * stage box and the wrap scrolls it. */
#stage-wrap {
  flex: 1;
  min-height: 0;
  min-width: 0;
  overflow: auto;
  background: var(--panel);
  padding: 14px;
}
#stage {
  /* Width set by JS: min(wrap width, wrap height x slide aspect), so "Fit"
   * fits BOTH dimensions (renderer 'contain' fits width only) while staying
   * content-independent (no zoom feedback loop). */
  width: 100%;
  margin: 0 auto;
  background: #fff;
}
#meter:not(:empty) { color: var(--danger); }

/* --- statusbar (pptx-viewer parity) ---------------------------------------- */

.statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 12px;
  border-top: 1px solid var(--line);
  background: var(--bg);
  flex-shrink: 0;
}
.status-left, .status-right { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 26px;
  padding: 0;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
}
.icon-btn:hover:not(:disabled) { background: var(--panel-2); color: var(--text); }
.slide-counter { font-size: 12px; color: var(--muted); margin-left: 4px; }
.zoom-label {
  font-size: 12px;
  padding: 3px 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  min-width: 44px;
}
.zoom-label:hover { background: var(--panel-2); color: var(--text); }
.status-sep { width: 1px; height: 16px; background: var(--line-strong); margin: 0 6px; }
.small-btn { padding: 4px 10px; font-size: 12.5px; }

body.presenting #stage-wrap { background: #000; padding: 0; }

/* --- scope segmented control ------------------------------------------------- */

.scope-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 8px;
  flex-wrap: wrap;
}
.seg {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
}
.seg-btn {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 5px 13px;
  font-size: 12.5px;
  color: var(--muted);
}
.seg-btn + .seg-btn { border-left: 1px solid var(--line-strong); }
.seg-btn.active { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.seg-btn:disabled { opacity: 0.45; }
#scope { color: var(--accent); }

/* --- empty state --------------------------------------------------------------- */

.empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
}
.drop-card {
  max-width: 560px;
  text-align: center;
  border: 2px dashed var(--line-strong);
  border-radius: 14px;
  padding: 44px 36px;
}
.drop-card h2 { margin: 0 0 12px; font-size: 22px; }
.drop-card p { color: var(--muted); margin: 0 0 22px; }
.drop-card .small { margin-top: 12px; }
.import-row { display: flex; gap: 8px; margin-top: 20px; }
.import-row input {
  flex: 1;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px 11px;
  min-width: 0;
}
.import-row input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

/* --- composer --------------------------------------------------------------------- */

.composer {
  border-top: 1px solid var(--line);
  padding: 10px 16px 12px;
  flex-shrink: 0;
  background: var(--bg);
}
.composer-row { display: flex; gap: 10px; align-items: flex-end; }
.composer textarea {
  flex: 1;
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 9px 12px;
  resize: vertical;
  min-height: 40px;
}
.composer textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.composer-status {
  display: flex;
  gap: 16px;
  padding-top: 6px;
  min-height: 22px;
  align-items: baseline;
  flex-wrap: wrap;
}
#scope { color: var(--accent); }
#status.ok { color: var(--ok); }
#status.err { color: var(--danger); }

/* --- overlays ------------------------------------------------------------------------ */

.drop-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  z-index: 20;
  border: 3px dashed var(--accent);
}
.busy {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
}
.busy-box {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 18px 26px;
  display: flex;
  gap: 12px;
  align-items: center;
}
.spinner {
  width: 18px;
  height: 18px;
  border: 3px solid var(--line-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toasts {
  position: fixed;
  bottom: 84px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 40;
  max-width: min(440px, calc(100vw - 32px));
}
.toast {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--ok);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  transition: opacity 0.5s;
}
.toast.err { border-left-color: var(--danger); }
.toast.gone { opacity: 0; }

@media (max-width: 720px) {
  #thumbs { width: 120px; }
  .composer-row { flex-direction: column; align-items: stretch; }
}