:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1a1a2e;
  --muted: #6b7280;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --border: #e5e7eb;
  --success: #16a34a;
  --radius: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* Header */
header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 22px; font-weight: 700; color: var(--text); text-decoration: none; }
.logo span { color: var(--primary); }
nav a { margin-left: 24px; color: var(--muted); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--primary); }

/* Hero */
.hero { text-align: center; padding: 56px 0 40px; }
.hero h1 { font-size: 36px; font-weight: 800; margin-bottom: 12px; }
.hero p { font-size: 17px; color: var(--muted); max-width: 560px; margin: 0 auto; }

/* Tool grid */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  padding: 24px 0 56px;
}
.tool-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: var(--text);
  transition: transform .15s, box-shadow .15s;
  display: block;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  border-color: var(--primary);
}
.tool-icon { font-size: 34px; margin-bottom: 10px; }
.tool-card h3 { font-size: 18px; margin-bottom: 6px; }
.tool-card p { font-size: 14px; color: var(--muted); }

/* Tool page layout */
.tool-page { padding: 40px 0 60px; }
.tool-header { text-align: center; margin-bottom: 32px; }
.tool-header h1 { font-size: 30px; font-weight: 800; margin-bottom: 8px; }
.tool-header p { color: var(--muted); font-size: 15px; }

.workspace {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

/* Dropzone */
.dropzone {
  border: 2px dashed #c7d2fe;
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.dropzone:hover, .dropzone.dragover {
  background: #eef2ff;
  border-color: var(--primary);
}
.dropzone .dz-icon { font-size: 42px; margin-bottom: 10px; }
.dropzone p { color: var(--muted); font-size: 15px; }
.dropzone .dz-hint { font-size: 13px; color: #9ca3af; margin-top: 6px; }

/* Controls */
.controls { margin-top: 24px; }
.control-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.control-row label { font-size: 14px; font-weight: 600; min-width: 90px; }
input[type="range"] { flex: 1; min-width: 160px; accent-color: var(--primary); }
select, input[type="number"] {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
}
.value-tag {
  font-size: 13px;
  color: var(--primary);
  font-weight: 700;
  min-width: 48px;
  text-align: right;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
}
.btn:hover { background: var(--primary-hover); }
.btn-secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: #f3f4f6; }
.btn-success { background: var(--success); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* File list */
.file-list { margin-top: 24px; }
.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.file-thumb { width: 52px; height: 52px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
.file-info { flex: 1; min-width: 140px; }
.file-name { font-size: 14px; font-weight: 600; word-break: break-all; }
.file-size { font-size: 12px; color: var(--muted); }
.file-status { font-size: 13px; font-weight: 600; }
.file-status.done { color: var(--success); }

/* Result area */
.result-area { margin-top: 24px; text-align: center; }

/* Editor (passport photo) */
.editor-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  margin-top: 24px;
}
@media (max-width: 820px) {
  .editor-layout { grid-template-columns: 1fr; }
}
.canvas-wrap {
  position: relative;
  background: #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.canvas-wrap canvas { max-width: 100%; display: block; }
.editor-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel-section {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.panel-section h4 { font-size: 14px; margin-bottom: 10px; }
.size-btns { display: flex; flex-wrap: wrap; gap: 8px; }
.size-btn {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  cursor: pointer;
}
.size-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.color-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.color-btn {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
}
.color-btn.active { border-color: var(--primary); }
.preview-strip { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.preview-strip img {
  width: 72px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* SEO content */
.seo-content {
  margin-top: 48px;
  padding: 32px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.seo-content h2 { font-size: 22px; margin-bottom: 12px; }
.seo-content h3 { font-size: 17px; margin: 20px 0 8px; }
.seo-content p, .seo-content li { font-size: 14px; color: #4b5563; }
.seo-content ul { padding-left: 20px; margin: 8px 0; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  text-align: center;
  color: #9ca3af;
  font-size: 13px;
}
footer a { color: var(--muted); }

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: #111827;
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
  z-index: 999;
}
.toast.show { opacity: 1; }

/* ===== Layout with sidebar ===== */
.layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  padding: 28px 0 56px;
  align-items: start;
}
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static !important; }
  .sidebar-nav { display: flex; flex-wrap: wrap; gap: 6px; }
  .sidebar-nav .cat-group { margin-bottom: 0 !important; }
  .sidebar-nav .tool-links { display: none; }
  .sidebar-nav .cat-title { margin-bottom: 0 !important; }
}
.sidebar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  position: sticky;
  top: 16px;
}
.sidebar h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: #9ca3af;
  margin-bottom: 12px;
}
.cat-group { margin-bottom: 16px; }
.cat-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.cat-title:hover { color: var(--primary); }
.tool-links { padding-left: 8px; }
.tool-links a {
  display: block;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 6px;
}
.tool-links a:hover, .tool-links a.active { background: #eef2ff; color: var(--primary); }

/* Language switcher */
.lang-switch {
  display: flex;
  gap: 4px;
  align-items: center;
}
.lang-switch button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  color: var(--muted);
}
.lang-switch button.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Related tools */
.related-tools {
  margin-top: 24px;
}
.related-tools h3 {
  font-size: 16px;
  margin-bottom: 12px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}
.related-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .15s;
}
.related-card:hover { border-color: var(--primary); }
.related-card .rc-icon { font-size: 20px; }
.related-card .rc-name { font-size: 13px; font-weight: 600; }
.related-card .rc-desc { font-size: 11px; color: var(--muted); }

/* Category page tool list */
.cat-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}