/* ===== RESET & VARS ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg0: #0d0d0f;
  --bg1: #16161a;
  --bg2: #1e1e24;
  --bg3: #28282f;
  --bg4: #32323b;
  --border: #3a3a45;
  --text1: #f0f0f5;
  --text2: #a0a0b0;
  --text3: #606070;
  --accent: #7c5cbf;
  --accent2: #9f7de8;
  --accent-glow: rgba(124,92,191,0.35);
  --danger: #e04040;
  --success: #3cc87a;
  --radius: 8px;
  --radius-lg: 12px;
  --panel-w: 260px;
  --topbar-h: 52px;
}

[data-theme="light"] {
  --bg0: #e8e8ef;
  --bg1: #f4f4f8;
  --bg2: #ffffff;
  --bg3: #f0f0f5;
  --bg4: #e4e4ea;
  --border: #d0d0dc;
  --text1: #1a1a2e;
  --text2: #50506a;
  --text3: #9090a8;
}

/* ===== BASE ===== */
html, body { height: 100%; overflow: hidden; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg0);
  color: var(--text1);
  font-size: 14px;
  line-height: 1.5;
}

button {
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text1);
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
button:hover { background: var(--bg4); border-color: var(--accent); }
button:active { transform: scale(0.97); }

input[type="text"], textarea, select {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text1);
  font-family: inherit;
  font-size: 13px;
  border-radius: var(--radius);
  padding: 7px 10px;
  outline: none;
  transition: border-color 0.15s;
}
input[type="text"]:focus, textarea:focus, select:focus { border-color: var(--accent2); }
textarea { resize: vertical; min-height: 60px; }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23888' d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 28px; }

input[type="range"] {
  width: 100%;
  accent-color: var(--accent2);
  cursor: pointer;
  height: 4px;
}

input[type="color"] {
  width: 44px;
  height: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 2px;
  background: var(--bg3);
}

/* ===== APP LAYOUT ===== */
#app { display: flex; flex-direction: column; height: 100vh; }

#topbar {
  height: var(--topbar-h);
  background: var(--bg1);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  flex-shrink: 0;
  z-index: 100;
}

#brand { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 22px; }
.logo-text { font-size: 18px; font-weight: 700; letter-spacing: -0.5px; background: linear-gradient(135deg, #9f7de8, #e87d7d); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

#topbar-actions { display: flex; gap: 8px; }
#topbar-actions button { padding: 6px 14px; font-size: 13px; }
#btn-download { background: var(--accent); border-color: var(--accent2); color: #fff; }
#btn-download:hover { background: var(--accent2); }

#main-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
  height: calc(100vh - var(--topbar-h));
}

/* ===== LEFT PANEL ===== */
#left-panel {
  width: var(--panel-w);
  min-width: 200px;
  background: var(--bg1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

#template-section { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

#cat-tabs {
  display: flex;
  gap: 4px;
  padding: 10px 10px 6px;
  flex-shrink: 0;
}

.cat-tab {
  flex: 1;
  font-size: 11px;
  padding: 5px 4px;
  border-radius: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cat-tab.active { background: var(--accent); border-color: var(--accent2); color: #fff; }

#template-grid {
  flex: 1;
  overflow-y: auto;
  padding: 6px 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
#template-grid::-webkit-scrollbar { width: 4px; }
#template-grid::-webkit-scrollbar-track { background: transparent; }
#template-grid::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.template-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.15s, transform 0.15s;
}
.template-card:hover { transform: scale(1.03); border-color: var(--accent2); }
.template-card.active { border-color: var(--accent); }
.template-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}
.template-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 4px 6px;
  background: rgba(0,0,0,0.65);
  font-size: 10px;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#history-section {
  border-top: 1px solid var(--border);
  padding: 8px 10px;
  max-height: 200px;
  overflow-y: auto;
}
#history-section::-webkit-scrollbar { width: 4px; }
#history-section::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.section-title button { padding: 2px 6px; font-size: 12px; }

#history-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg2);
  transition: background 0.15s;
}
.history-item:hover { background: var(--bg3); }
.history-item img { width: 40px; height: 30px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
.history-meta { flex: 1; overflow: hidden; }
.history-meta .hi-name { font-size: 11px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-meta .hi-date { font-size: 10px; color: var(--text3); }

/* ===== CANVAS AREA ===== */
#canvas-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg0);
  overflow: auto;
  gap: 12px;
  padding: 16px;
}

#canvas-wrapper {
  position: relative;
  display: inline-block;
  box-shadow: 0 4px 40px rgba(0,0,0,0.6);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: crosshair;
  flex-shrink: 0;
}

#meme-canvas {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 180px);
}

#text-overlay-container {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
}

.text-box {
  position: absolute;
  cursor: move;
  pointer-events: all;
  user-select: none;
  min-width: 80px;
  min-height: 30px;
  border: 2px dashed rgba(255,255,255,0.4);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s;
  padding: 4px;
}
.text-box:hover { border-color: rgba(124,92,191,0.8); }
.text-box.selected { border-color: var(--accent2); border-style: solid; }
.text-box.selected .resize-handle { display: block; }

.tb-label {
  pointer-events: none;
  word-break: break-word;
  text-align: center;
  font-style: italic;
  color: rgba(255,255,255,0.5);
  font-size: 12px;
}

.resize-handle {
  display: none;
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--accent2);
  border: 2px solid #fff;
  border-radius: 2px;
  cursor: nwse-resize;
  pointer-events: all;
  z-index: 10;
}
.resize-handle.se { bottom: -5px; right: -5px; cursor: se-resize; }
.resize-handle.sw { bottom: -5px; left: -5px; cursor: sw-resize; }
.resize-handle.ne { top: -5px; right: -5px; cursor: ne-resize; }
.resize-handle.nw { top: -5px; left: -5px; cursor: nw-resize; }

#canvas-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

#upload-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text1);
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s;
}
#upload-label:hover { background: var(--bg4); border-color: var(--accent); }

#btn-add-text { background: var(--success); border-color: #2aaa62; color: #fff; }
#btn-add-text:hover { background: #2aaa62; }

#sticker-panel {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  padding: 8px 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.sticker {
  font-size: 22px;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: background 0.1s, transform 0.1s;
  line-height: 1;
}
.sticker:hover { background: var(--bg4); transform: scale(1.2); }

/* ===== RIGHT PANEL ===== */
#right-panel {
  width: var(--panel-w);
  min-width: 200px;
  background: var(--bg1);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
  padding-bottom: 16px;
}
#right-panel::-webkit-scrollbar { width: 4px; }
#right-panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

#no-selection-hint {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  text-align: center;
  color: var(--text3);
  gap: 10px;
}
.hint-icon { font-size: 32px; }
#no-selection-hint p { font-size: 13px; line-height: 1.5; }

#text-controls { padding: 12px; }
.panel-section { margin-bottom: 14px; }
.panel-section.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.ctrl-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text3);
  margin-bottom: 5px;
}

#align-group, #case-group { display: flex; gap: 4px; }
.align-btn, .case-btn { flex: 1; font-size: 13px; padding: 6px 4px; }
.align-btn.active, .case-btn.active { background: var(--accent); border-color: var(--accent2); color: #fff; }

.toggle { display: inline-flex; align-items: center; cursor: pointer; gap: 8px; }
.toggle input { display: none; }
.toggle-track {
  width: 36px;
  height: 20px;
  background: var(--bg4);
  border-radius: 10px;
  position: relative;
  transition: background 0.2s;
  border: 1px solid var(--border);
}
.toggle-track::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--text2);
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: left 0.2s, background 0.2s;
}
.toggle input:checked + .toggle-track { background: var(--accent); }
.toggle input:checked + .toggle-track::after { left: 18px; background: #fff; }

.danger-btn { background: var(--danger); border-color: #c03030; color: #fff; width: 100%; }
.danger-btn:hover { background: #c03030; }

#canvas-controls {
  padding: 12px;
  border-top: 1px solid var(--border);
}

#suggestions-section {
  padding: 12px;
  border-top: 1px solid var(--border);
}
#suggestions-section .section-title { margin-bottom: 10px; }
#suggestions-list { display: flex; flex-direction: column; gap: 6px; }

.suggestion-chip {
  padding: 8px 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  cursor: pointer;
  color: var(--text2);
  line-height: 1.4;
  transition: background 0.15s, border-color 0.15s;
}
.suggestion-chip:hover { background: var(--bg4); border-color: var(--accent); color: var(--text1); }
.suggestion-chip strong { color: var(--accent2); display: block; margin-bottom: 2px; font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; }

/* ===== TOAST ===== */
#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  padding: 10px 22px;
  border-radius: 24px;
  font-size: 14px;
  z-index: 9999;
  animation: toastIn 0.25s ease;
  white-space: nowrap;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(12px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* ===== EMPTY STATE ===== */
.empty-state {
  color: var(--text3);
  font-size: 12px;
  text-align: center;
  padding: 12px 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  :root { --panel-w: 180px; }
}
@media (max-width: 680px) {
  #left-panel { display: none; }
  #right-panel { width: 200px; }
}
@media (max-width: 500px) {
  #right-panel { display: none; }
  #main-layout { flex-direction: column; }
}