/* ===== AdAutomate Preview — Styles ===== */

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

:root {
  --bg: #F8F9FA;
  --surface: #FFFFFF;
  --border: #E0E0E0;
  --text: #1C1E21;
  --text-muted: #65676B;
  --primary: #6366F1;
  --primary-hover: #4F46E5;
  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

body.dark {
  --bg: #18191A;
  --surface: #242526;
  --border: #3E4042;
  --text: #E4E6EB;
  --text-muted: #B0B3B8;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

/* Header */
.header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 24px; background: var(--surface); border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.header-left { display: flex; align-items: center; gap: 8px; }
.logo { font-weight: 700; font-size: 18px; color: var(--primary); }
.logo-sub { font-size: 12px; color: var(--text-muted); background: var(--border); padding: 2px 8px; border-radius: 10px; }
.icon-btn { background: none; border: 1px solid var(--border); border-radius: 6px; padding: 6px 10px; cursor: pointer; font-size: 16px; }
.version { font-size: 11px; color: var(--text-muted); margin-left: 8px; }

/* Tabs */
.tabs {
  display: flex; gap: 0; background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.tab {
  padding: 12px 20px; background: none; border: none; border-bottom: 3px solid transparent;
  color: var(--text-muted); font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all 0.2s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Tab Content */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Split View */
.split-view {
  display: flex; gap: 0; min-height: calc(100vh - 120px);
}
.form-panel {
  flex: 0 0 40%; max-width: 40%; padding: 20px; overflow-y: auto;
  border-right: 1px solid var(--border); background: var(--surface);
}
.preview-panel {
  flex: 1; padding: 20px; overflow-y: auto; background: var(--bg);
}

.form-panel h3, .preview-panel h3, .image-prompts-panel h3 {
  font-size: 16px; font-weight: 600; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: space-between;
}

/* Platform Switcher */
.platform-switcher {
  display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px;
}
.platform-btn {
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 16px;
  background: var(--bg); color: var(--text-muted); font-size: 11px; font-weight: 500;
  cursor: pointer; transition: all 0.2s; white-space: nowrap;
}
.platform-btn:hover { border-color: var(--primary); color: var(--primary); }
.platform-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

/* Form */
.form-group { margin-bottom: 14px; }
.form-group label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 4px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: 14px; font-family: inherit;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.form-group textarea { resize: vertical; min-height: 80px; }

.char-counter { font-size: 11px; font-weight: 400; }
.char-counter.ok { color: var(--success); }
.char-counter.warn { color: var(--warning); }
.char-counter.over { color: var(--danger); font-weight: 700; }

/* Buttons */
.btn-primary {
  padding: 8px 20px; background: var(--primary); color: white; border: none;
  border-radius: 6px; font-size: 14px; font-weight: 600; cursor: pointer;
  transition: background 0.2s;
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-sm {
  padding: 4px 10px; font-size: 12px; border-radius: 4px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer;
}
.btn-sm:hover { border-color: var(--primary); }

.btn-danger {
  padding: 4px 10px; font-size: 12px; border-radius: 4px; border: 1px solid var(--danger);
  background: var(--surface); color: var(--danger); cursor: pointer;
}
.btn-danger:hover { background: var(--danger); color: white; }

/* Preview Container */
.preview-container {
  min-height: 400px; display: flex; align-items: center; justify-content: center;
  border: 2px dashed var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.preview-placeholder { text-align: center; color: var(--text-muted); }

/* Image Prompts */
.image-prompts-panel { padding: 24px; max-width: 800px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }
.prompts-results { margin-top: 24px; }
.prompt-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; margin-bottom: 12px; box-shadow: var(--shadow);
}
.prompt-card .platform-tag {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; margin-bottom: 8px;
}
.prompt-card .platform-tag.midjourney { background: #F3E8FF; color: #7C3AED; }
.prompt-card .platform-tag.dalle { background: #DBEAFE; color: #2563EB; }
.prompt-card .platform-tag.canva { background: #D1FAE5; color: #059669; }
.prompt-card pre {
  white-space: pre-wrap; word-break: break-word; font-size: 13px;
  line-height: 1.5; color: var(--text); background: var(--bg); padding: 10px;
  border-radius: 4px; border: 1px solid var(--border);
}
.copy-btn {
  margin-top: 8px; padding: 4px 12px; font-size: 12px; border: 1px solid var(--primary);
  border-radius: 4px; background: none; color: var(--primary); cursor: pointer;
}
.copy-btn:hover { background: var(--primary); color: white; }

/* Workspace */
.workspace-panel { padding: 24px; max-width: 800px; }
.workspace-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px;
}
.folder-create { display: flex; gap: 8px; }
.folder-create input {
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: 13px;
}
.folders-list { display: flex; flex-direction: column; gap: 8px; }
.folder-card {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.folder-card .folder-name { font-weight: 600; font-size: 14px; }
.folder-card .folder-meta { font-size: 12px; color: var(--text-muted); }
.folder-card .folder-actions { display: flex; gap: 6px; }
.empty-state { text-align: center; color: var(--text-muted); padding: 40px; }

/* Toast */
.toast {
  position: fixed; top: 16px; right: 16px; padding: 10px 16px;
  background: var(--success); color: white; border-radius: 6px;
  font-size: 13px; font-weight: 500; z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15); animation: slideIn 0.3s ease;
}
.toast.error { background: var(--danger); }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
  .split-view { flex-direction: column; }
  .form-panel { flex: 1; max-width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
  .form-row { flex-direction: column; }
  .workspace-header { flex-direction: column; gap: 8px; align-items: stretch; }
}