/* PyxelBasic web page styles. The Pyxel canvas is centered and is normally
   the only thing on screen; the web UI (storage / options / theme) lives in
   an overlay opened with the Menu button, with accordion sections.

   All UI colors come from the custom properties below. The values here are
   the "dark" preset; ui.js overrides them per-element-style when a theme or
   a per-color customization is active (persisted in browser storage). */

:root {
  --pb-bg: #1a1a1e;       /* page background */
  --pb-fg: #dddddd;       /* main text */
  --pb-muted: #9a9aa4;    /* secondary text (version, hints, meters) */
  --pb-panel: #232329;    /* overlay panel / accordion background */
  --pb-border: #3a3a44;   /* borders */
  --pb-control: #34343e;  /* buttons */
  --pb-accent: #8a8af0;   /* links, drop-zone highlight */
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--pb-bg);
  color: var(--pb-fg);
  font-family: system-ui, sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
}

#pb-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.6rem 1rem 0.4rem;
}

#pb-header h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
}

#pb-version {
  font-size: 0.8rem;
  color: var(--pb-muted);
}

#pb-menu-btn {
  margin-left: 0.75rem;
  padding: 0.25rem 0.9rem;
  font-size: 0.85rem;
}

#pb-ref-link {
  font-size: 0.85rem;
  color: var(--pb-accent);
}

#pb-banner {
  margin: 0 1rem 0.5rem;
  padding: 0.5rem 0.75rem;
  background: #5a2020;
  border: 1px solid #a04040;
  border-radius: 4px;
  font-size: 0.85rem;
  color: #eee;
}

/* Centered stage for the Pyxel screen. */
#pb-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding-bottom: 1rem;
  box-sizing: border-box;
}

/* Fixed, aspect-preserving box for the Pyxel canvas (256x256 logical pixels,
   scaled by pyxel.js inside this container). pyxel.css makes div#pyxel-screen
   a full-viewport absolute layer; the extra ancestor in the selector outranks
   that so the canvas stays a square box inside the centered layout (the
   absolute canvas/overlay children then fill this box instead of the
   viewport). */
#pb-main div#pyxel-screen {
  position: relative;
  width: min(85vmin, 82vh, 768px);
  height: min(85vmin, 82vh, 768px);
  flex: none;
}

/* The canvas gets focus on click; a focus ring makes no sense on a game
   screen. */
#pyxel-screen canvas:focus {
  outline: none;
}

/* --- overlay --- */

#pb-overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
}

#pb-overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}

#pb-panel {
  position: relative;
  margin: 6vh auto 0;
  width: min(26rem, calc(100vw - 2rem));
  max-height: 85vh;
  overflow-y: auto;
  background: var(--pb-panel);
  border: 1px solid var(--pb-border);
  border-radius: 8px;
  padding: 0.75rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

#pb-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--pb-muted);
}

/* --- accordion sections --- */

.pb-acc {
  border: 1px solid var(--pb-border);
  border-radius: 6px;
  margin-bottom: 0.5rem;
  background: var(--pb-panel);
}

.pb-acc summary {
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  font-size: 0.95rem;
  color: var(--pb-muted);
  user-select: none;
}

.pb-acc[open] summary {
  border-bottom: 1px solid var(--pb-border);
}

.pb-acc-body {
  padding: 0.6rem 0.75rem;
}

.pb-acc-body p {
  font-size: 0.8rem;
  margin: 0.4rem 0;
  color: var(--pb-muted);
}

.pb-acc-body a {
  color: var(--pb-accent);
}

.pb-acc-body pre {
  background: var(--pb-bg);
  padding: 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
  margin: 0.4rem 0;
}

/* --- storage section --- */

#pb-file-list {
  list-style: none;
  margin: 0 0 0.5rem;
  padding: 0;
  max-height: 14rem;
  overflow-y: auto;
  font-size: 0.85rem;
}

#pb-file-list li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.15rem 0;
}

.pb-file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: ui-monospace, monospace;
}

button {
  background: var(--pb-control);
  color: var(--pb-fg);
  border: 1px solid var(--pb-border);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
  cursor: pointer;
}

button:hover {
  background: color-mix(in srgb, var(--pb-control), var(--pb-fg) 12%);
}

#pb-usage {
  font-size: 0.75rem;
  color: var(--pb-muted);
  margin-bottom: 0.5rem;
}

#pb-dropzone {
  border: 2px dashed var(--pb-border);
  border-radius: 6px;
  padding: 0.75rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--pb-muted);
  margin-bottom: 0.5rem;
}

#pb-dropzone.pb-dragging {
  border-color: var(--pb-accent);
  background: color-mix(in srgb, var(--pb-panel), var(--pb-accent) 12%);
}

.pb-filepick {
  display: block;
  margin-top: 0.3rem;
  color: var(--pb-accent);
  cursor: pointer;
}

.pb-filepick input {
  display: none;
}

.pb-urlimport {
  display: flex;
  gap: 0.4rem;
}

.pb-urlimport input {
  flex: 1;
  background: var(--pb-bg);
  color: var(--pb-fg);
  border: 1px solid var(--pb-border);
  border-radius: 4px;
  padding: 0.25rem 0.4rem;
  font-size: 0.8rem;
}

.pb-diskimage {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

.pb-diskimage span {
  flex: 1;
  color: var(--pb-muted);
}

/* The Import and Choose files controls are file-input labels; dress them
   as buttons so they read as clickable actions. */
.pb-diskimage .pb-filepick,
#pb-dropzone .pb-filepick {
  display: inline-block;
  background: var(--pb-control);
  color: var(--pb-fg);
  border: 1px solid var(--pb-border);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
}

/* The dropzone button sits on its own second line; the base .pb-filepick
   top margin serves as line spacing there. The disk-image row is a flex
   row and needs no top margin. */
.pb-diskimage .pb-filepick {
  margin-top: 0;
}

.pb-diskimage .pb-filepick:hover,
#pb-dropzone .pb-filepick:hover {
  background: color-mix(in srgb, var(--pb-control), var(--pb-fg) 12%);
}

#pb-storage-msg {
  font-size: 0.75rem;
  color: #8ac08a;
  margin-top: 0.4rem;
  min-height: 1em;
  overflow-wrap: anywhere;
}

#pb-storage-msg.pb-error {
  color: #e08080;
}

/* --- options / theme sections --- */

.pb-acc-body label {
  display: block;
  font-size: 0.85rem;
  margin: 0.4rem 0;
}

.pb-acc-body select,
.pb-acc-body input[type="number"] {
  background: var(--pb-bg);
  color: var(--pb-fg);
  border: 1px solid var(--pb-border);
  border-radius: 4px;
  padding: 0.2rem 0.3rem;
  margin-left: 0.4rem;
  font-size: 0.85rem;
}

.pb-acc-body .pb-check input {
  margin-right: 0.4rem;
}

#pb-opt-apply,
#pb-theme-reset {
  margin-top: 0.5rem;
  padding: 0.35rem 0.8rem;
  font-size: 0.85rem;
}

.pb-theme-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  margin: 0.3rem 0;
}

.pb-theme-row input[type="color"] {
  width: 3.2rem;
  height: 1.6rem;
  padding: 0;
  border: 1px solid var(--pb-border);
  border-radius: 4px;
  background: var(--pb-bg);
  cursor: pointer;
}