/* ── Reset & Base ────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #f4f6fb;
  --surface:    #ffffff;
  --border:     #e2e8f0;
  --text:       #1e293b;
  --text-muted: #64748b;
  --primary:    #6366f1;
  --primary-h:  #4f46e5;
  --danger:     #ef4444;
  --danger-h:   #dc2626;
  --success:    #22c55e;
  --radius:     12px;
  --shadow:     0 1px 4px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.14);
  --transition: .18s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────── */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 16px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-icon {
  font-size: 32px;
  line-height: 1;
}

.header h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.header-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 1px;
}

/* ── Main ────────────────────────────────────── */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 48px;
}

/* ── Folder Label ────────────────────────────── */
.folder-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
}

.folder-icon { font-size: 20px; }

.template-count {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--border);
  padding: 2px 10px;
  border-radius: 20px;
  margin-left: 4px;
}

/* ── Grid ────────────────────────────────────── */
.templates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* ── Card ────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  display: block;
}

.card-image-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #e0e7ff 0%, #f0fdf4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.card-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Card Actions ────────────────────────────── */
.card-actions {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: #fafbfc;
  flex-wrap: wrap;
}

.card-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 7px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.card-btn-copy {
  background: var(--primary);
  color: #fff;
  flex: 1;
  justify-content: center;
}
.card-btn-copy:hover { background: var(--primary-h); }

.card-btn-edit {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.card-btn-edit:hover { background: var(--bg); border-color: #94a3b8; }

.card-btn-delete {
  background: transparent;
  color: var(--danger);
  border-color: #fecaca;
}
.card-btn-delete:hover { background: #fff1f2; border-color: var(--danger); }

/* ── Buttons ─────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 9px;
  border: none;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-h); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-h); }

/* ── Empty State ─────────────────────────────── */
.empty-state {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  gap: 12px;
}

.empty-state.visible { display: flex; }

.empty-emoji { font-size: 56px; }

.empty-state h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.empty-state p {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.6;
}

/* ── Modal ───────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 16px;
  backdrop-filter: blur(3px);
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border-radius: 16px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: modal-in .2s ease;
}

.modal-sm { max-width: 380px; }

@keyframes modal-in {
  from { opacity: 0; transform: scale(.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 { font-size: 17px; font-weight: 700; }

.modal-close {
  width: 30px;
  height: 30px;
  border: none;
  background: var(--bg);
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--transition);
}
.modal-close:hover { background: var(--border); }

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
  flex: 1;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ── Form ────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.required { color: var(--danger); }
.optional { color: var(--text-muted); font-weight: 400; }

.form-group input,
.form-group textarea {
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}

/* ── Image Drop Zone ─────────────────────────── */
.image-drop-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  background: var(--bg);
  position: relative;
}

.image-drop-zone:hover,
.image-drop-zone.dragover {
  border-color: var(--primary);
  background: #eef2ff;
}

.drop-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
  pointer-events: none;
}

.drop-icon { font-size: 28px; }

.image-preview-modal {
  width: 100%;
  border-radius: 8px;
  max-height: 200px;
  object-fit: cover;
  display: none;
}

.btn-remove-image {
  display: none;
  margin-top: 10px;
  background: transparent;
  border: 1px solid #fecaca;
  color: var(--danger);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-remove-image:hover { background: #fff1f2; }

/* ── Toast ───────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1e293b;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: 9px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 300;
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Responsive ──────────────────────────────── */
@media (max-width: 600px) {
  .header-inner { flex-wrap: wrap; }
  .main { padding: 20px 16px 40px; }
  .templates-grid { grid-template-columns: 1fr; }
  .modal { border-radius: 12px 12px 0 0; position: fixed; bottom: 0; max-height: 95vh; }
  .modal-overlay.open { align-items: flex-end; }
}