:root {
  --bg-main: #0B0F17;
  --bg-card: #111827;
  --bg-input: #1A2234;
  --bg-input-focus: #212C42;
  --border-color: #26334D;
  --border-highlight: #3B82F6;
  --text-main: #F9FAFB;
  --text-muted: #9CA3AF;
  --text-sub: #6B7280;
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --accent: #F59E0B;
  --success: #10B981;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 24px 20px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 28px;
}

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

.brand-badge {
  background: linear-gradient(135deg, var(--primary), #4F46E5);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 1.25rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.logo-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 9999px;
  background-color: rgba(16, 185, 129, 0.1);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-indicator .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10B981;
  box-shadow: 0 0 8px #10B981;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #FFFFFF;
}

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

.btn-secondary {
  background-color: #1F2937;
  color: #E5E7EB;
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: #374151;
  color: #FFFFFF;
}

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

.btn-ghost:hover {
  color: var(--text-main);
  border-color: var(--text-muted);
}

.btn-sm {
  font-size: 0.82rem;
  padding: 6px 12px;
}

.btn-block {
  width: 100%;
}

/* Main Layout Grid */
.main-layout {
  display: grid;
  grid-template-columns: 480px 1fr;
  gap: 28px;
  margin-bottom: 48px;
}

@media (max-width: 960px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
}

.panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.panel-header {
  margin-bottom: 20px;
}

.panel-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.panel-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Form Styles */
.form-vertical {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 10px 12px;
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--border-highlight);
  background-color: var(--bg-input-focus);
}

.input-action-row {
  display: flex;
  gap: 8px;
}

.input-action-row input {
  flex: 1;
}

.highlight-box {
  background-color: rgba(37, 99, 235, 0.05);
  border: 1px dashed rgba(59, 130, 246, 0.4);
  padding: 12px;
  border-radius: var(--radius-sm);
}

.file-input {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.status-note {
  font-size: 0.78rem;
  color: var(--accent);
  margin-top: 4px;
}

/* Preview / Output Column */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-sub);
}

.empty-icon {
  font-size: 2.8rem;
  margin-bottom: 12px;
}

.empty-state h3 {
  color: var(--text-main);
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.empty-state p {
  font-size: 0.85rem;
  max-width: 360px;
}

/* Progress Box & Logs */
.progress-box {
  margin-bottom: 20px;
}

.progress-bar-container {
  height: 6px;
  background-color: var(--bg-input);
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #38BDF8);
  transition: width 0.3s ease;
}

.terminal-logs {
  background-color: #070A0E;
  border: 1px solid #1A2234;
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #94A3B8;
  max-height: 140px;
  overflow-y: auto;
}

.terminal-logs .log-line {
  margin-bottom: 4px;
}

.terminal-logs .log-line.active {
  color: #38BDF8;
}

/* Creatives Gallery */
.creatives-gallery {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.gallery-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.gallery-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.15);
  color: #34D399;
}

.creatives-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 640px) {
  .creatives-grid {
    grid-template-columns: 1fr;
  }
}

.creative-card {
  background-color: #0E131F;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.creative-media {
  position: relative;
  background-color: #000000;
  aspect-ratio: 4/5;
  overflow: hidden;
}

.creative-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.creative-info {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.creative-copy {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.creative-prompt {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.creative-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

/* Accordion details */
.strategy-details details {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.strategy-details summary {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
}

.specs-content {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.code-block {
  background-color: #070A0E;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #CBD5E1;
  overflow-x: auto;
  white-space: pre-wrap;
}

/* Pricing Section */
.pricing-section {
  padding: 32px 0;
  border-top: 1px solid var(--border-color);
}

.section-title {
  text-align: center;
  margin-bottom: 32px;
}

.section-title h2 {
  font-size: 1.6rem;
  font-weight: 800;
}

.section-title p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 840px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

.price-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.2);
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary);
  color: #FFFFFF;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 9999px;
  letter-spacing: 0.05em;
}

.price-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.price-amount {
  font-size: 2.2rem;
  font-weight: 800;
  margin: 10px 0;
}

.price-amount span {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.price-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.price-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex: 1;
}

.price-features li {
  font-size: 0.85rem;
  color: var(--text-main);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  padding: 24px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.modal-header h3 {
  font-size: 1.15rem;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Footer */
.app-footer {
  text-align: center;
  padding: 24px 0 12px;
  font-size: 0.8rem;
  color: var(--text-sub);
  border-top: 1px solid var(--border-color);
}

.hidden {
  display: none !important;
}