/* ==========================================
   PIXELFORGE — style.css
   Dark creative editor aesthetic
   ========================================== */

:root {
  --bg-base: #0b0c10;
  --bg-surface: #12141a;
  --bg-panel: #1a1d27;
  --bg-panel-hover: #1f2230;
  --border: #2a2d3a;
  --border-glow: #5e6ad2;
  --accent: #6c72f5;
  --accent-alt: #f25f9e;
  --accent-green: #39d98a;
  --text-primary: #e8eaf6;
  --text-muted: #6b7280;
  --text-dim: #3a3f52;
  --danger: #ef4444;
  --radius: 10px;
  --radius-sm: 6px;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --sidebar-width: 280px;
  --navbar-h: 56px;
  --footer-h: 44px;
  --shadow-glow: 0 0 20px rgba(108,114,245,0.15);
  --transition: 0.18s ease;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ==========================================
   NAVBAR
   ========================================== */
.pf-navbar {
  height: var(--navbar-h);
  background: rgba(18, 20, 26, 0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  flex-shrink: 0;
}

.pf-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary) !important;
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-icon {
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.3rem;
}

.brand-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pf-badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 10px;
}

.pf-badge.active {
  color: var(--accent-green);
  border-color: rgba(57,217,138,0.4);
  background: rgba(57,217,138,0.08);
}

/* ==========================================
   MAIN LAYOUT
   ========================================== */
.pf-main {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: calc(100vh - var(--navbar-h) - var(--footer-h));
}

/* ==========================================
   SIDEBAR
   ========================================== */
.pf-sidebar {
  width: var(--sidebar-width);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Panels */
.pf-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: border-color var(--transition);
}

.pf-panel:hover {
  border-color: rgba(108,114,245,0.35);
}

.pf-panel-header {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pf-panel-header i { color: var(--accent); }

/* Drop Zone */
.pf-drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: rgba(108,114,245,0.03);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.pf-drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(108,114,245,0.1);
  box-shadow: var(--shadow-glow);
}

.drop-inner {
  padding: 20px 16px;
  text-align: center;
  pointer-events: none;
}

.drop-icon {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 8px;
}

.drop-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.drop-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

/* Filter Grid */
.filter-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.pf-filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 4px;
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}

.pf-filter-btn i {
  font-size: 1.1rem;
}

.pf-filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(108,114,245,0.08);
}

.pf-filter-btn.active {
  border-color: var(--accent);
  color: var(--bg-base);
  background: var(--accent);
  box-shadow: 0 0 12px rgba(108,114,245,0.4);
}

/* Form Elements */
.pf-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 5px;
}

.pf-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.pf-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(108,114,245,0.5);
  transition: transform var(--transition);
}

.pf-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.pf-input {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.82rem;
  padding: 7px 10px;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}

.pf-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108,114,245,0.15);
}

.pf-select {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.82rem;
  padding: 7px 10px;
  outline: none;
  width: 100%;
  cursor: pointer;
  transition: border-color var(--transition);
}

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

.pf-color {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  padding: 2px;
}

.pf-color::-webkit-color-swatch-wrapper { padding: 0; }
.pf-color::-webkit-color-swatch { border: none; border-radius: 4px; }

/* Buttons */
.pf-btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-family: var(--font-body);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.pf-btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(108,114,245,0.08);
}

.pf-btn-accent {
  background: var(--accent);
  border: none;
  color: #fff;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  transition: all var(--transition);
}

.pf-btn-accent:hover {
  background: #7b80f7;
  box-shadow: 0 0 12px rgba(108,114,245,0.4);
  transform: translateY(-1px);
}

.pf-btn-download {
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  border: none;
  color: #fff;
  font-size: 0.78rem;
  font-family: var(--font-display);
  font-weight: 700;
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  letter-spacing: 0.5px;
  transition: all var(--transition);
}

.pf-btn-download:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(108,114,245,0.4);
}

.pf-btn-download:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.pf-btn-danger {
  background: transparent;
  border: 1px solid rgba(239,68,68,0.4);
  color: var(--danger);
  font-size: 0.78rem;
  font-family: var(--font-body);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.pf-btn-danger:hover {
  background: rgba(239,68,68,0.1);
  border-color: var(--danger);
}

/* Toggle buttons */
.pf-toggle {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  padding: 5px 9px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
}

.pf-toggle:hover { border-color: var(--accent); color: var(--accent); }
.pf-toggle.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Text props section */
.pf-props-title {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent-alt);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ==========================================
   CANVAS AREA
   ========================================== */
.pf-canvas-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(108,114,245,0.05) 0%, transparent 70%),
    var(--bg-base);
  overflow: hidden;
  position: relative;
}

/* Subtle grid pattern */
.pf-canvas-area::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.pf-canvas-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  padding: 24px;
}

/* Placeholder */
.pf-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.placeholder-inner {
  text-align: center;
  color: var(--text-dim);
}

.placeholder-inner i {
  font-size: 4rem;
  display: block;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--border), var(--text-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.placeholder-inner h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-dim);
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.placeholder-inner p {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Canvas Container */
.pf-canvas-container {
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 0 1px rgba(108,114,245,0.2);
  border-radius: 4px;
  overflow: hidden;
  display: inline-block;
  max-width: 100%;
  max-height: 100%;
  user-select: none;
}

#mainCanvas {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - var(--navbar-h) - var(--footer-h) - 48px);
}

/* Text Layers */
.pf-text-layer {
  position: absolute;
  cursor: move;
  padding: 3px 6px;
  border: 2px dashed transparent;
  border-radius: 3px;
  white-space: nowrap;
  line-height: 1.2;
  transition: border-color 0.12s;
  user-select: none;
  touch-action: none;
  /* default styles */
  font-family: 'Syne', sans-serif;
  font-size: 32px;
  color: #ffffff;
}

.pf-text-layer:hover {
  border-color: rgba(108,114,245,0.5);
}

.pf-text-layer.selected {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(108,114,245,0.3);
}

.pf-text-layer.has-shadow {
  text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

/* ==========================================
   FOOTER
   ========================================== */
.pf-footer {
  height: var(--footer-h);
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding: 0 24px;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
}

.footer-dev {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.footer-copy {
  font-size: 0.68rem;
  color: var(--text-dim);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 900px) {
  :root { --sidebar-width: 240px; }
}

@media (max-width: 640px) {
  .pf-main { flex-direction: column; overflow-y: auto; }
  .pf-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow-y: visible;
    max-height: 50vh;
    overflow-y: auto;
  }
  .pf-canvas-area { min-height: 300px; }
  body { overflow: auto; }
  .pf-main {
    height: auto;
  }
}

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.pf-panel {
  animation: fadeIn 0.3s ease both;
}

.pf-panel:nth-child(1) { animation-delay: 0.05s; }
.pf-panel:nth-child(2) { animation-delay: 0.1s; }
.pf-panel:nth-child(3) { animation-delay: 0.15s; }
.pf-panel:nth-child(4) { animation-delay: 0.2s; }

/* Pulse glow on active filter */
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 8px rgba(108,114,245,0.4); }
  50% { box-shadow: 0 0 16px rgba(108,114,245,0.7); }
}

.pf-filter-btn.active {
  animation: pulseGlow 2s ease infinite;
}

/* Canvas fade in */
@keyframes canvasFadeIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

#canvasContainer.visible {
  animation: canvasFadeIn 0.35s ease both;
}