/* ═══════════════════════════════════════════════════════
   表情包工坊 — Dank Meme Aesthetic
   ═══════════════════════════════════════════════════════ */

:root {
  --bg:          #0f0f1a;
  --bg-card:     #1a1a2e;
  --bg-input:    #16213e;
  --accent:      #ff007f;
  --accent2:     #7b2fff;
  --accent3:     #00e5ff;
  --green:       #39ff14;
  --text:        #e8e8f0;
  --text-light:  #9898b4;
  --text-muted:  #5a5a78;
  --border:      #2a2a42;
  --radius:      12px;
  --radius-sm:   8px;
  --font:        'PingFang SC', 'Microsoft YaHei', -apple-system, sans-serif;
  --font-mono:   'SF Mono', 'Consolas', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  height: 100vh;
}

/* ── App Layout ──────────────────────────────────────── */
.app {
  display: flex;
  height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────── */
.sidebar {
  width: 300px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.3s;
  z-index: 100;
}
.sidebar.hidden {
  transform: translateX(-100%);
  position: absolute; left: 0; top: 0; bottom: 0;
}
.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border-bottom: 1px solid var(--border);
}
.sidebar-header h2 { font-size: 1rem; font-weight: 700; }
.btn-close {
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid var(--border); background: none; color: var(--text-light);
  cursor: pointer; font-size: 0.9rem; display: flex; align-items: center; justify-content: center;
}
.search-box { padding: 12px 16px; }
.search-box input {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 20px;
  background: var(--bg-input); color: var(--text);
  font-size: 0.85rem; font-family: var(--font);
}
.search-box input:focus { outline: none; border-color: var(--accent3); }

.category-tabs {
  display: flex; gap: 6px; padding: 0 16px 12px; flex-wrap: wrap;
}
.cat-tab {
  padding: 5px 12px; border-radius: 15px; border: 1px solid var(--border);
  background: none; color: var(--text-light); cursor: pointer;
  font-size: 0.75rem; font-family: var(--font); transition: all 0.2s;
}
.cat-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.template-grid {
  flex: 1; overflow-y: auto; padding: 0 12px 12px;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px;
}
.template-item {
  aspect-ratio: 4/3; border-radius: 8px; cursor: pointer;
  border: 2px solid transparent; transition: all 0.2s;
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; position: relative; overflow: hidden;
}
.template-item:hover { transform: scale(1.04); }
.template-item.selected { border-color: var(--accent); box-shadow: 0 0 16px rgba(255,0,127,0.3); }
.template-item .tpl-label {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 4px; background: rgba(0,0,0,0.7);
  font-size: 0.65rem; text-align: center; color: #ccc;
}

/* ── Main ────────────────────────────────────────────── */
.main {
  flex: 1; display: flex; flex-direction: column;
  overflow: hidden;
}

/* ── Topbar ──────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
.topbar h1 {
  font-size: 1.1rem; font-weight: 800; letter-spacing: 2px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.topbar-actions { margin-left: auto; display: flex; gap: 8px; }

/* ── Canvas Area ─────────────────────────────────────── */
.canvas-area {
  flex: 1; display: flex; align-items: center; justify-content: center;
  padding: 20px; background:
    radial-gradient(circle at 30% 40%, rgba(255,0,127,0.03) 0%, transparent 60%),
    radial-gradient(circle at 70% 60%, rgba(0,229,255,0.03) 0%, transparent 60%);
  overflow: auto;
}
.canvas-container {
  position: relative; display: inline-block;
  box-shadow: 0 8px 40px rgba(0,0,0,0.5), 0 0 0 1px var(--border);
  border-radius: 6px; overflow: hidden;
}
canvas { display: block; max-width: 100%; max-height: 60vh; }

/* ── Editor Panel ────────────────────────────────────── */
.editor-panel {
  border-top: 1px solid var(--border); background: var(--bg-card);
  padding: 14px 20px; display: flex; gap: 20px; flex-wrap: wrap;
  overflow-y: auto; max-height: 200px;
}
.panel-section {
  flex: 1; min-width: 180px;
}
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px; font-size: 0.85rem; font-weight: 700;
}
.layers-list { display: flex; flex-wrap: wrap; gap: 6px; }
.layer-chip {
  padding: 6px 12px; border-radius: 20px; border: 1px solid var(--border);
  background: var(--bg-input); cursor: pointer; font-size: 0.78rem;
  transition: all 0.2s; white-space: nowrap; max-width: 120px;
  overflow: hidden; text-overflow: ellipsis;
}
.layer-chip:hover { border-color: var(--accent3); }
.layer-chip.active { background: var(--accent2); border-color: var(--accent2); color: #fff; }

.prop-row {
  display: flex; align-items: center; gap: 8px; margin-bottom: 6px;
  font-size: 0.78rem;
}
.prop-row label { width: 36px; color: var(--text-light); flex-shrink: 0; }
.prop-row input[type="text"] {
  flex: 1; padding: 6px 10px; border: 1px solid var(--border);
  border-radius: 4px; background: var(--bg-input); color: var(--text);
  font-size: 0.82rem; font-family: var(--font);
}
.prop-row input[type="text"]:focus { outline: none; border-color: var(--accent3); }
.prop-row input[type="range"] { flex: 1; accent-color: var(--accent); }
.prop-row input[type="color"] { width: 28px; height: 28px; border: none; cursor: pointer; background: none; }
.prop-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); }
.prop-val { font-size: 0.75rem; color: var(--text-light); width: 40px; text-align: right; }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 8px 18px; border: none; border-radius: 20px;
  font-size: 0.85rem; font-weight: 700; font-family: var(--font);
  cursor: pointer; transition: all 0.2s;
}
.btn-sm { padding: 5px 12px; font-size: 0.75rem; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; box-shadow: 0 2px 12px rgba(255,0,127,0.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(255,0,127,0.4); }
.btn-outline {
  background: none; border: 1px solid var(--border); color: var(--text-light);
}
.btn-outline:hover { border-color: var(--accent3); color: var(--accent3); }
.btn-danger {
  background: none; border: 1px solid #ff4444; color: #ff4444;
}
.btn-danger:hover { background: #ff4444; color: #fff; }
.btn-icon {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--border); background: none; color: var(--text-light);
  cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center;
}
.btn-icon:hover { border-color: var(--accent3); }

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { width: 260px; position: absolute; left: 0; top: 0; bottom: 0; }
  .sidebar.hidden { transform: translateX(-100%); }
  .editor-panel { flex-direction: column; max-height: 240px; }
}