/* ============================================================
   MIRROR GENERATOR — style.css
   Windows 2.0 / 16-bit / pixel aesthetic  ·  Mobile-first
   Press Start 2P font, full-width controls, flat UI
   ============================================================ */

:root {
  --bg:      #c0c0c0;
  --panel:   #ffffff;
  --border:  #222222;
  --text:    #111111;
  --hl:      #000088;
  --hl-text: #ffffff;
  --shadow:  #888888;
  --font:    'Roboto Mono', 'Courier New', monospace;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  min-height: 100%;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
  text-transform: lowercase;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: none;
  overflow: hidden;
}

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

/* ── CSS-only folder icon ────────────────────────────────── */
.folder {
  display: inline-block;
  position: relative;
  width: 20px;
  height: 16px;
}
.folder-tab {
  position: absolute;
  top: 0;
  left: 0;
  width: 10px;
  height: 5px;
  background: var(--panel);
  border: 2px solid var(--text);
  border-bottom: none;
  border-top-left-radius: 1px;
  border-top-right-radius: 1px;
}
.folder-body {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 12px;
  background: var(--panel);
  border: 2px solid var(--text);
}
/* filled folder on hover/focus */
.dropdown-toggle:hover .folder-tab,
.dropdown-toggle:hover .folder-body,
.dropdown-toggle:focus-visible .folder-tab,
.dropdown-toggle:focus-visible .folder-body {
  background: var(--hl-text);
  border-color: var(--hl-text);
}

/* large folder for placeholder */
.folder-lg {
  width: 36px;
  height: 28px;
}
.folder-lg .folder-tab {
  width: 18px;
  height: 9px;
}
.folder-lg .folder-body {
  height: 22px;
}
.placeholder:hover .folder-lg .folder-tab,
.placeholder:hover .folder-lg .folder-body {
  background: var(--text);
  border-color: var(--text);
}

/* ── Header ──────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 6px;
  background: var(--panel);
  border-bottom: 2px solid var(--border);
  flex-shrink: 0;
  position: relative;
}
.header-left {
  position: absolute;
  left: 6px;
  top: 50%;
  transform: translateY(-50%);
}
.header-title {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .04em;
}
.header-right {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
}

/* Info button */
.info-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
}
.info-btn:hover, .info-btn:focus-visible {
  background: var(--border);
  color: var(--panel);
  outline: none;
}

/* ── Dropdown ────────────────────────────────────────────── */
.dropdown { position: relative; }

.dropdown-toggle {
  background: var(--panel);
  border: 2px solid var(--border);
  color: var(--text);
  cursor: pointer;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.dropdown-toggle:hover, .dropdown-toggle:focus-visible {
  background: var(--hl);
  color: var(--hl-text);
  outline: none;
}

.dropdown-panel {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  background: var(--panel);
  border: 2px solid var(--border);
  min-width: 100px;
  z-index: 100;
}
.dropdown-panel[hidden] { display: none !important; }

.dropdown-item {
  display: block;
  width: 100%;
  padding: 8px 10px;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  text-transform: lowercase;
  text-align: left;
  cursor: pointer;
  letter-spacing: .02em;
  white-space: nowrap;
}
.dropdown-item:hover, .dropdown-item:focus-visible {
  background: var(--hl);
  color: var(--hl-text);
  outline: none;
}

.dropdown-hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ── Canvas area ─────────────────────────────────────────── */
.canvas-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  overflow: hidden;
  min-height: 0;
}

.placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  padding: 28px 40px;
  border: 2px dashed var(--shadow);
  background: var(--panel);
  color: var(--shadow);
}
.placeholder:hover {
  border-color: var(--border);
  color: var(--text);
}
.placeholder[hidden] { display: none !important; }

.placeholder-text {
  font-size: 11px;
  letter-spacing: .04em;
}

.mirror-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  border: 2px solid var(--border);
  background: var(--panel);
}
.mirror-canvas[hidden] { display: none; }

/* ── Controls footer ─────────────────────────────────────── */
.controls {
  flex-shrink: 0;
  border-top: 2px solid var(--border);
  background: var(--panel);
  padding: 0;
}
.controls[hidden] { display: none !important; }

.ctrl-row {
  display: flex;
  align-items: center;
}

/* Invert row */
.invert-row {
  justify-content: center;
  gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
}
.ctrl-label {
  font-size: 11px;
  letter-spacing: .04em;
  margin-right: 2px;
}
.chk {
  display: flex;
  align-items: center;
  gap: 3px;
  cursor: pointer;
  font-size: 11px;
  user-select: none;
}
.chk-input {
  position: absolute; opacity: 0; width: 0; height: 0;
}
.chk-box {
  width: 10px;
  height: 10px;
  border: 2px solid var(--border);
  background: var(--panel);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.chk-input:checked + .chk-box {
  background: var(--border);
}
.chk-input:checked + .chk-box::after {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  background: var(--panel);
}

/* Mirror row — full width, equal buttons */
.mirror-row {
  display: flex;
  width: 100%;
}

.mbtn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  background: var(--panel);
  border: none;
  border-right: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  text-transform: lowercase;
  cursor: pointer;
  padding: 0;
}
.mbtn:last-child {
  border-right: none;
}
.mbtn:hover, .mbtn:focus-visible {
  background: var(--hl);
  color: var(--hl-text);
  outline: none;
}
.mbtn.active {
  background: var(--border);
  color: var(--panel);
}

.save-btn {
  font-weight: 700;
}

/* ── Info overlay ────────────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.35);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.overlay[hidden] { display: none !important; }

.overlay-card {
  background: var(--panel);
  color: var(--text);
  border: 2px solid var(--border);
  padding: 18px 14px 14px;
  max-width: 320px;
  width: 100%;
  position: relative;
}
.overlay-card h2 {
  font-size: 13px;
  margin-bottom: 10px;
  letter-spacing: .04em;
}
.overlay-card p  { font-size: 11px; line-height: 1.8; margin-bottom: 4px; }
.overlay-card ul { padding-left: 14px; margin-bottom: 4px; }
.overlay-card li { font-size: 11px; line-height: 1.8; margin-bottom: 2px; }
.overlay-card a  { color: var(--hl); }
.credit { opacity: .5; font-size: 10px !important; margin-top: 8px !important; }

.overlay-close {
  position: absolute;
  top: 4px; right: 8px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  font-family: var(--font);
  line-height: 1;
}
.overlay-close:hover { color: var(--hl); }

/* ── Toast ───────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 56px;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--border);
  color: var(--panel);
  font-size: 11px;
  font-family: var(--font);
  padding: 5px 10px;
  border: 2px solid var(--border);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms, transform 120ms;
  white-space: nowrap;
  z-index: 300;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Desktop breakpoint ──────────────────────────────────── */
@media (min-width: 600px) {
  body { font-size: 13px; }
  .header { height: 42px; padding: 0 14px; }
  .header-left  { left: 14px; }
  .header-right { right: 14px; }
  .header-title { font-size: 13px; }

  .folder     { width: 24px; height: 18px; }
  .folder-tab { width: 12px; height: 6px; }
  .folder-body { height: 14px; }

  .info-btn { width: 28px; height: 28px; font-size: 13px; }

  .dropdown-toggle { padding: 5px 8px; }
  .dropdown-item   { font-size: 12px; padding: 8px 14px; }
  .dropdown-panel  { min-width: 130px; }

  .canvas-area { padding: 16px; }

  .folder-lg { width: 44px; height: 34px; }
  .folder-lg .folder-tab  { width: 20px; height: 10px; }
  .folder-lg .folder-body { height: 26px; }
  .placeholder      { padding: 36px 52px; gap: 12px; }
  .placeholder-text { font-size: 12px; }

  .ctrl-label  { font-size: 12px; }
  .chk         { font-size: 12px; gap: 5px; }
  .chk-box     { width: 14px; height: 14px; }
  .invert-row  { padding: 7px 0; gap: 12px; }

  .mbtn { min-height: 44px; font-size: 12px; }

  .overlay-card    { padding: 22px 18px 16px; }
  .overlay-card h2 { font-size: 15px; }
  .overlay-card p  { font-size: 12px; }
  .overlay-card li { font-size: 12px; }
  .credit          { font-size: 10px !important; }
}