/* ============================================================
   ASCII STUDIO — style.css
   Dark mode = default. Light (day) mode via body.light class.
   ============================================================ */

/* ── Fonts ─────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Orbitron:wght@400;700&display=swap');

/* ── CSS Variables ──────────────────────────────────────────── */
:root {
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;
  --font-display: 'Orbitron', monospace;
  --radius: 2px;
  --transition: 0.2s ease;
}

/* DARK theme tokens */
body.dark {
  --bg-page:        #000000;
  --bg-panel:       #050505;
  --bg-input:       #0a0a0a;
  --bg-output:      #000000;
  --border:         #1a3d1a;
  --border-bright:  #00ff41;
  --text-primary:   #00ff41;
  --text-muted:     #1a6630;
  --text-hint:      #0d4420;
  --accent:         #00ff41;
  --accent-dim:     #005c18;
  --danger:         #ff4444;
  --tab-active-bg:  #00ff41;
  --tab-active-fg:  #000000;
  --drop-hover-bg:  rgba(0,255,65,0.04);
  --thumb-border:   #005c18;
  --scan-color:     rgba(0,255,65,0.15);
  --out-bg:         #000000;
}

/* LIGHT (day) theme tokens */
body.light {
  --bg-page:        #f4f1eb;
  --bg-panel:       #ffffff;
  --bg-input:       #f9f7f2;
  --bg-output:      #ffffff;
  --border:         #c8c4b8;
  --border-bright:  #1a1a1a;
  --text-primary:   #1a1a1a;
  --text-muted:     #555048;
  --text-hint:      #888070;
  --accent:         #1a1a1a;
  --accent-dim:     #888070;
  --danger:         #cc2222;
  --tab-active-bg:  #1a1a1a;
  --tab-active-fg:  #f4f1eb;
  --drop-hover-bg:  rgba(26,26,26,0.04);
  --thumb-border:   #c8c4b8;
  --scan-color:     rgba(26,26,26,0.1);
  --out-bg:         #ffffff;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}

.header-inner { display: flex; flex-direction: column; gap: 2px; }

.logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 4px;
}

.logo-dot { color: var(--accent); }

.tagline {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 2px;
}

/* Theme toggle button */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  padding: 8px 14px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.theme-toggle:hover {
  background: var(--accent);
  color: var(--tab-active-fg);
}

.toggle-icon { font-size: 14px; }

/* ── App Shell: 2-column layout ────────────────────────────── */
.app-shell {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 0;
  min-height: calc(100vh - 65px);
}

/* ── Left panel: inputs ─────────────────────────────────────── */
.panel-inputs {
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
}

/* Tabs */
.tabs {
  display: flex;
  margin-bottom: 20px;
  border: 1px solid var(--border-bright);
}

.tab {
  flex: 1;
  padding: 9px 0;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.tab.active {
  background: var(--tab-active-bg);
  color: var(--tab-active-fg);
}

.tab:hover:not(.active) { color: var(--text-primary); }

/* Tab panels */
.tab-panel { display: flex; flex-direction: column; gap: 8px; }
.tab-panel.hidden { display: none; }

/* Section labels */
.section-label {
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.top-gap { margin-top: 24px; }

/* Drop zones */
.drop-zone {
  border: 1px dashed var(--border);
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  text-align: center;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--drop-hover-bg);
}

.drop-icon {
  font-size: 24px;
  color: var(--text-muted);
  line-height: 1;
}

.drop-zone span {
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.drop-hint {
  font-size: 10px !important;
  color: var(--text-hint) !important;
}

/* Thumb previews */
.thumb {
  width: 100%;
  max-height: 100px;
  object-fit: cover;
  border: 1px solid var(--thumb-border);
  margin-top: 4px;
  filter: grayscale(0.3);
}

.thumb.hidden { display: none; }

/* Buttons */
.btn {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  padding: 9px 16px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  align-self: flex-start;
}

.btn:hover { background: var(--accent); color: var(--tab-active-fg); }

.btn-small {
  background: transparent;
  border: 1px solid var(--text-muted);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 5px 10px;
  cursor: pointer;
  margin-top: 4px;
  transition: all var(--transition);
}

.btn-small.danger { border-color: var(--danger); color: var(--danger); }
.btn-small.danger:hover { background: var(--danger); color: #fff; }
.btn-small.hidden { display: none; }

/* Camera */
.cam-status {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.cam-status .live-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--danger);
  margin-right: 6px;
  animation: blink 1s ease-in-out infinite;
}

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.15} }

.cam-wrap {
  position: relative;
  margin-top: 12px;
}

.cam-wrap.hidden { display: none; }

#videoEl {
  width: 100%;
  display: block;
  border: 1px solid var(--border);
  filter: grayscale(0.6) contrast(1.1);
}

.scan-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 2px solid transparent;
  animation: scanpulse 3s linear infinite;
}

@keyframes scanpulse {
  0%,100% { border-color: transparent; }
  50% { border-color: var(--scan-color); }
}

/* ── Right panel: output ─────────────────────────────────────── */
.panel-output {
  background: var(--bg-output);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Controls bar */
.controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}

.ctrl-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ctrl-label {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  white-space: nowrap;
}

.ctrl-val {
  font-size: 11px;
  color: var(--text-primary);
  min-width: 32px;
  text-align: right;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 2px;
  background: var(--border);
  cursor: pointer;
  outline: none;
  border: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 11px; height: 11px;
  background: var(--accent);
  border-radius: 0;
  cursor: pointer;
}

select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 8px;
  cursor: pointer;
  outline: none;
}

select:focus { border-color: var(--accent); }

input[type="checkbox"] {
  width: 14px; height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* Output area */
.output-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.out-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}

.out-info {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.out-actions { display: flex; gap: 6px; }

.out-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 3px 8px;
  cursor: pointer;
  transition: color var(--transition);
  border: 1px solid var(--border);
}

.out-btn:hover { color: var(--text-primary); border-color: var(--accent); }

#asciiOut {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 7px;
  line-height: 1;
  color: var(--text-primary);
  background: var(--out-bg);
  white-space: pre;
  overflow: auto;
  padding: 12px;
  transition: background var(--transition), color var(--transition);
}

#asciiOut.hidden { display: none; }

#compositCanvas {
  flex: 1;
  width: 100%;
  display: block;
  object-fit: contain;
  background: var(--out-bg);
}

#compositCanvas.hidden { display: none; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .panel-inputs {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .controls-bar { gap: 10px 14px; }
  input[type="range"] { width: 60px; }
}