/* ============================================================
   PixelStudio — tema Lumen
   Baseado no design system de Leonxlnx/lumenshaders
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Space+Grotesk:wght@500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ============ Tokens ============ */
:root {
  --bg:          #09090b;
  --bg2:         #0f0f12;
  --bg3:         rgba(255,255,255,0.045);
  --bg4:         rgba(255,255,255,0.08);
  --rail:        rgba(14,14,18,0.96);
  --border:      rgba(255,255,255,0.08);
  --border-s:    rgba(255,255,255,0.13);
  --glass-hi:    rgba(255,255,255,0.055);
  --text:        #ececef;
  --text-dim:    #9b9ba4;
  --text-dimmer: #5e5e68;
  --accent:      rgba(255,255,255,0.92);
  --accent-bg:   rgba(255,255,255,0.10);
  --danger:      #ff4060;

  --r-sm: 9px;
  --r-md: 13px;
  --r-lg: 18px;

  --font-ui:   'Inter', -apple-system, 'Segoe UI', sans-serif;
  --font-disp: 'Space Grotesk', var(--font-ui);
  --font-mono: 'IBM Plex Mono', 'Fira Mono', monospace;
}

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

body {
  font-family: var(--font-ui);
  font-size: 13px;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ============ Topbar ============ */
#topbar {
  height: 54px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  background: rgba(9,9,11,0.88);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  flex-shrink: 0;
  z-index: 10;
}

.logo {
  font-family: var(--font-disp);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -.3px;
  color: var(--text);
  margin-right: 12px;
  user-select: none;
}
.logo span { color: var(--text-dim); font-weight: 500; }

.sep {
  width: 1px;
  height: 20px;
  background: var(--border-s);
  margin: 0 4px;
}
.spacer { flex: 1; }

#img-info {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dimmer);
  margin-right: 8px;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 33px;
  padding: 0 13px;
  font-family: var(--font-ui);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-dim);
  background: linear-gradient(180deg, var(--bg4) 0%, var(--bg3) 100%);
  border: 1px solid var(--border-s);
  border-radius: var(--r-sm);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  cursor: pointer;
  white-space: nowrap;
  transition: color 120ms, background 120ms, border-color 120ms, box-shadow 120ms;
}
.btn:hover:not(:disabled) {
  color: var(--text);
  background: linear-gradient(180deg, rgba(255,255,255,0.10) 0%, rgba(255,255,255,0.055) 100%);
  border-color: var(--border-s);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.10), 0 4px 14px rgba(0,0,0,0.4);
}
.btn:disabled { opacity: .32; cursor: not-allowed; }

.btn.primary {
  background: linear-gradient(180deg, #ffffff 0%, #dfdfe6 100%);
  border-color: rgba(255,255,255,0.6);
  color: #0c0c0f;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9), 0 2px 8px rgba(0,0,0,0.5);
}
.btn.primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #ffffff 0%, #eaeaf0 100%);
  color: #4a4a56;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9), 0 6px 20px rgba(0,0,0,0.5);
}

.btn.icon { padding: 0 10px; }
.btn.small { height: 28px; padding: 0 10px; font-size: 11.5px; border-radius: var(--r-sm); }
.btn.wide  { width: 100%; }

.btn.active {
  background: var(--accent-bg);
  border-color: var(--border-s);
  color: var(--text);
  box-shadow: inset 0 1px 0 var(--glass-hi);
}

.btn-row { display: flex; gap: 5px; margin: 8px 0; flex-wrap: wrap; }

/* ============ Layout ============ */
#main { display: flex; flex: 1; min-height: 0; }

/* ============ Toolbar ============ */
#toolbar {
  width: 88px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 10px 6px;
  gap: 2px;
  flex-shrink: 0;
  overflow-y: auto;
}

.tool-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  color: var(--text-dimmer);
  padding: 10px 4px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2px;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.tool-btn .ico { font-size: 18px; display: flex; align-items: center; justify-content: center; }

/* ============ Lucide icons ============ */
svg[data-lucide] {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}
.tool-btn .ico svg[data-lucide] { width: 20px; height: 20px; stroke-width: 1.6; }
.dz-icon svg[data-lucide]       { width: 48px; height: 48px; stroke-width: 1.1; }
.logo svg[data-lucide]          { width: 18px; height: 18px; stroke-width: 2; }
h3 svg[data-lucide], h4 svg[data-lucide] { width: 14px; height: 14px; stroke-width: 1.75; }
.btn svg[data-lucide]           { width: 14px; height: 14px; stroke-width: 1.75; }
.layers-actions svg[data-lucide]{ width: 13px; height: 13px; stroke-width: 1.75; }
#zoom-box svg[data-lucide]      { width: 14px; height: 14px; stroke-width: 1.75; }
.tool-btn:hover:not(:disabled) {
  background: var(--bg4);
  color: var(--text);
}
.tool-btn.active {
  background: rgba(255,255,255,0.07);
  color: var(--text);
  border-color: var(--border-s);
}
.tool-btn:disabled { opacity: .28; cursor: not-allowed; }

/* ============ Canvas area ============ */
#canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 90% 70% at 50% 42%, #141418 0%, #09090b 100%);
}

#view, #overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
#overlay { touch-action: none; }

/* ============ Dropzone ============ */
#dropzone {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  background: transparent;
}
#dropzone.hidden { display: none; }
#dropzone.dragover .dz-inner {
  border-color: rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.04);
}

.dz-inner {
  border: 1.5px dashed var(--border-s);
  border-radius: var(--r-lg);
  padding: 52px 72px;
  text-align: center;
  background: rgba(255,255,255,0.02);
  backdrop-filter: blur(4px);
  transition: border-color .2s, background .2s;
}
.dz-icon { font-size: 48px; margin-bottom: 14px; opacity: .7; }
.dz-inner h2 {
  font-family: var(--font-disp);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.dz-inner p { color: var(--text-dim); margin: 8px 0; font-size: 13px; }
.dz-formats { font-size: 10.5px; color: var(--text-dimmer); letter-spacing: .5px; font-family: var(--font-mono); }

/* ============ Zoom box ============ */
#zoom-box {
  position: absolute;
  bottom: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(14,14,18,0.88);
  border: 1px solid var(--border-s);
  border-radius: var(--r-md);
  padding: 4px;
  backdrop-filter: blur(12px);
  z-index: 4;
}
#zoom-box button {
  background: transparent;
  border: none;
  color: var(--text-dim);
  width: 28px; height: 26px;
  cursor: pointer;
  border-radius: var(--r-sm);
  font-size: 14px;
  transition: background 100ms, color 100ms;
}
#zoom-box button:hover { background: var(--bg4); color: var(--text); }
#zoom-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dimmer);
  min-width: 44px;
  text-align: center;
}

/* ============ Side panel ============ */
#panel {
  width: 300px;
  background: var(--rail);
  border-left: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow-y: auto;
  flex-shrink: 0;
  display: none;
}
#panel.open { display: block; }

.tool-panel { display: none; padding: 16px 14px 28px; }
.tool-panel.active { display: block; }

.tool-panel h3 {
  font-family: var(--font-disp);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
  letter-spacing: -.2px;
}

.tool-panel label {
  display: block;
  font-size: 11.5px;
  color: var(--text-dimmer);
  margin: 10px 0 4px;
  font-weight: 500;
  letter-spacing: .2px;
}

.tool-panel input[type="number"],
.tool-panel input[type="text"],
.tool-panel textarea,
.tool-panel select {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-s);
  border-radius: var(--r-sm);
  color: var(--text);
  padding: 6px 9px;
  font-size: 12.5px;
  font-family: var(--font-mono);
  margin-top: 4px;
  height: 30px;
  transition: border-color 130ms, background 130ms;
}
.tool-panel textarea { height: auto; font-family: var(--font-ui); }
.tool-panel input:focus,
.tool-panel textarea:focus,
.tool-panel select:focus {
  outline: none;
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.06);
}

.tool-panel input[type="range"] {
  width: 100%;
  margin-top: 6px;
  accent-color: var(--text);
  height: 4px;
  cursor: pointer;
}

.tool-panel input[type="color"] {
  width: 100%;
  height: 30px;
  padding: 2px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-s);
  border-radius: var(--r-sm);
  cursor: pointer;
  margin-top: 4px;
}

.row2 { display: flex; gap: 8px; }
.row2 label { flex: 1; }

.check {
  display: flex !important;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  color: var(--text-dim) !important;
  font-size: 12px !important;
}
.check input[type="checkbox"] {
  accent-color: var(--text);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

.hint {
  font-size: 11.5px;
  color: var(--text-dimmer);
  line-height: 1.5;
  margin: 8px 0;
}

/* ============ Âncora canvas ============ */
.rs-anchor {
  display: grid;
  grid-template-columns: repeat(3, 22px);
  gap: 3px;
  margin: 6px 0 10px;
}
.rs-anchor button {
  width: 22px; height: 22px;
  background: var(--bg3);
  border: 1px solid var(--border-s);
  border-radius: 4px;
  cursor: pointer;
  padding: 0;
  transition: background .1s, border-color .1s;
}
.rs-anchor button:hover { border-color: rgba(255,255,255,0.2); background: var(--bg4); }
.rs-anchor button.rs-anc-sel { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.3); }

/* ============ Camadas ============ */
#layers-box {
  padding: 14px;
  border-bottom: 1px solid var(--border);
}
.layers-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  gap: 6px;
}
.layers-head h3 {
  font-family: var(--font-disp);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: .1px;
}
.layers-actions { display: flex; gap: 3px; }
.layers-actions .btn.small { padding: 0 7px; height: 26px; font-size: 12px; }

#layers-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-height: 220px;
  overflow-y: auto;
}

.ly-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 7px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  cursor: pointer;
  user-select: none;
  transition: background 100ms, border-color 100ms;
}
.ly-row:hover { background: var(--bg3); }
.ly-row.active {
  background: rgba(255,255,255,0.06);
  border-color: var(--border-s);
}

.ly-thumb {
  width: 40px;
  height: 30px;
  border-radius: 5px;
  border: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg3);
}
.ly-name {
  flex: 1;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ly-row.active .ly-name { color: var(--text); }

.ly-eye {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 12px;
  padding: 2px 4px;
  color: var(--text-dimmer);
  transition: color 100ms;
}
.ly-eye:hover { color: var(--text-dim); }
.ly-eye.off { opacity: .3; }

.ly-opacity-label {
  display: block;
  font-size: 11px;
  color: var(--text-dimmer);
  margin-top: 10px;
  font-family: var(--font-mono);
}
.ly-opacity-label input[type="range"] {
  width: 100%;
  margin-top: 5px;
  accent-color: var(--text);
}

/* ============ Refinamento ============ */
.refine-box {
  margin-top: 14px;
  padding: 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.refine-box h4 {
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dim);
}

/* ============ Progress ============ */
.progress { margin: 12px 0; }
.progress.hidden { display: none; }
.progress-bar {
  height: 3px;
  background: rgba(255,255,255,0.07);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar > div {
  height: 100%;
  width: 0%;
  background: var(--text);
  border-radius: 2px;
  transition: width .2s;
}

/* ============ Export ============ */
.size-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  margin: 12px 0;
  font-size: 12.5px;
}
.size-box b {
  font-family: var(--font-mono);
  color: var(--text);
  font-size: 14px;
}

/* ============ Statusbar ============ */
#statusbar {
  display: flex;
  padding: 5px 16px;
  background: rgba(9,9,11,0.9);
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dimmer);
  flex-shrink: 0;
  backdrop-filter: blur(8px);
}

/* ============ Toasts ============ */
#toast-area {
  position: fixed;
  bottom: 46px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.toast {
  background: rgba(20,20,24,0.96);
  border: 1px solid var(--border-s);
  border-radius: var(--r-md);
  padding: 10px 18px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text);
  box-shadow: 0 20px 60px rgba(0,0,0,0.7);
  backdrop-filter: blur(16px);
  animation: toast-in .2s cubic-bezier(.34,1.56,.64,1);
}
.toast.error  { border-color: rgba(255,64,96,.4); color: #ff8099; }
.toast.success { border-color: rgba(60,210,120,.3); color: #6ee7a8; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ============ Scrollbars ============ */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background-color: rgba(255,255,255,0.14); }
::-webkit-scrollbar-track { background: transparent; }

.hidden { display: none !important; }

/* ============ Compare ============ */
.compare-row { display: flex; gap: 10px; margin-top: 6px; }
.compare-row > div { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.compare-row canvas {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  image-rendering: pixelated;
}
.compare-row span { font-size: 10.5px; color: var(--text-dimmer); font-family: var(--font-mono); }