@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --primary: #6C5CE7;
  --primary-hover: #5A4BD1;
  --primary-glow: rgba(108, 92, 231, 0.15);
  --bg: #0B0B10;
  --surface: #14141F;
  --surface-2: #1E1E30;
  --surface-3: #282842;
  --border: #2A2A42;
  --border-hover: #3D3D5C;
  --text: #EEEEF2;
  --text-muted: #7B7B9E;
  --accent: #A29BFE;
  --success: #00C9A7;
  --success-hover: #00B394;
  --pro-badge: #FFD93D;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* Background Glows */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.1;
  pointer-events: none;
  z-index: 0;
}

.bg-glow-1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -200px;
  left: -150px;
}

.bg-glow-2 {
  width: 500px;
  height: 500px;
  background: var(--accent);
  top: 40%;
  right: -200px;
}

.bg-glow-3 {
  width: 400px;
  height: 400px;
  background: #7c6cf0;
  bottom: -100px;
  left: 30%;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header */
header {
  padding: 48px 0 16px;
  text-align: center;
}

.logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
}

.logo-img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  object-position: top;
  background: transparent;
  mix-blend-mode: lighten;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-muted);
  margin-top: 8px;
  font-size: 1.05rem;
  font-weight: 400;
}

/* App Layout */
.app-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

/* Tabs */
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 24px;
  background: var(--surface-2);
  padding: 4px;
  border-radius: var(--radius-sm);
}

.tab {
  flex: 1;
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.25s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.tab:hover {
  color: var(--text);
  background: var(--surface-3);
}

.tab.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.35);
}

.tab svg { flex-shrink: 0; }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Badge */
.badge {
  background: var(--pro-badge);
  color: #1a1a2e;
  font-size: 0.58rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  vertical-align: middle;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Inputs */
.input-group { margin-bottom: 18px; }

.input-group label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.input-group input,
.input-group textarea,
.input-group select {
  width: 100%;
  padding: 11px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  transition: all 0.25s;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-group input::placeholder,
.input-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

.input-group textarea { resize: vertical; }

.input-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%237B7B9E' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.hidden { display: none !important; }

.options-row { display: flex; gap: 12px; }
.options-row .input-group { flex: 1; }

/* Color Picker */
.customization {
  margin: 20px 0;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.customization h3 {
  font-size: 0.85rem;
  margin-bottom: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.color-row { display: flex; gap: 16px; }
.color-row .input-group { flex: 1; }

.color-pick { display: flex; align-items: center; gap: 10px; }

.color-pick input[type="color"] {
  width: 42px;
  height: 42px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 3px;
  background: var(--surface-2);
  transition: border-color 0.2s;
}

.color-pick input[type="color"]:hover { border-color: var(--primary); }

.color-pick span {
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Generate Button */
.btn-generate {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), #7c6cf0);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s;
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-generate::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s;
}

.btn-generate:hover::before { left: 100%; }

.btn-generate:hover {
  box-shadow: 0 6px 28px rgba(108, 92, 231, 0.45);
  transform: translateY(-2px);
}

.btn-generate:active { transform: translateY(0) scale(0.98); }

/* Preview Panel */
.preview-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.preview-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 20px;
  align-self: flex-start;
}

.qr-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  width: 100%;
  background: var(--surface-2);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}

.qr-preview img, .qr-preview svg { max-width: 100%; }

.placeholder {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
}

.placeholder-icon { opacity: 0.3; margin-bottom: 16px; }

.placeholder p { font-size: 0.95rem; font-weight: 500; }

.placeholder span {
  font-size: 0.82rem;
  opacity: 0.5;
  display: block;
  margin-top: 4px;
}

/* Download */
.download-section { margin-top: 16px; width: 100%; }

.btn-download {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--success), #4dd8a5);
  color: #0B0B10;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0, 201, 167, 0.2);
}

.btn-download:hover {
  box-shadow: 0 6px 24px rgba(0, 201, 167, 0.35);
  transform: translateY(-2px);
}

/* Bulk Results */
.bulk-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
  width: 100%;
  margin-top: 16px;
}

.bulk-item {
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border);
}

.bulk-item:hover {
  transform: scale(1.04);
  border-color: var(--primary);
}

.bulk-item img { width: 100%; border-radius: 6px; }

.bulk-item p {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Pro Gate */
.pro-gate h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
.pro-gate p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 16px; }

.pro-gate textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  resize: vertical;
  margin-bottom: 12px;
  transition: all 0.25s;
}

.pro-gate textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Ad Banner */
.ad-banner { margin: 48px 0 24px; text-align: center; }

.ad-placeholder {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 18px;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Features */
.features { margin: 60px 0 50px; }

.features h2 {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.features-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 36px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.25s;
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 42px;
  height: 42px;
  background: var(--primary-glow);
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--accent);
}

.feature-card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; }
.feature-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; }

/* FAQ */
.faq {
  margin-top: 60px;
}
.faq h2 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 32px;
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: border-color 0.25s;
}
.faq-item:hover {
  border-color: var(--primary);
}
.faq-item summary {
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform 0.2s;
}
.faq-item[open] summary::after {
  content: '-';
}
.faq-item p {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
@media (max-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr;
  }
}

/* Footer */
footer {
  padding: 32px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}

/* Header Layout */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.btn-upgrade {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a2e;
  border: none;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.btn-upgrade:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 217, 61, 0.3);
}

/* Ad Slots */
.ad-slot {
  margin: 24px 0;
  text-align: center;
}

.ad-slot .ad-placeholder {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 16px;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.6;
}

/* PRO Overlays */
.pro-feature {
  position: relative;
}

.pro-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 11, 16, 0.7);
  backdrop-filter: blur(3px);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.pro-gate {
  position: relative;
}

.btn-unlock {
  padding: 10px 20px;
  background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a2e;
  border: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-unlock:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 20px rgba(255, 217, 61, 0.3);
}

.lock-icon {
  font-size: 0.75rem;
  opacity: 0.6;
}

/* PRO Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  position: relative;
  box-shadow: 0 16px 64px rgba(0, 0, 0, 0.5);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 18px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close:hover { color: var(--text); }

.modal-icon {
  color: #FFD93D;
  margin-bottom: 16px;
}

.modal h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.modal > p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
  line-height: 1.5;
}

.modal-price {
  margin-bottom: 20px;
}

.modal-amount {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #FFD93D, #FFB800);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-once {
  display: block;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 2px;
}

.modal-perks {
  list-style: none;
  text-align: left;
  margin-bottom: 24px;
}

.modal-perks li {
  padding: 6px 0;
  font-size: 0.88rem;
  color: var(--text);
}

.modal-perks li::before {
  content: '\2713';
  color: var(--success);
  font-weight: 700;
  margin-right: 10px;
}

.btn-buy-modal {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a2e;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s;
  box-shadow: 0 4px 20px rgba(255, 217, 61, 0.25);
}

.btn-buy-modal:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255, 217, 61, 0.4);
}

.modal-footer {
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* Pricing Section */
.pricing {
  margin: 60px 0;
  text-align: center;
}

.pricing h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 36px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 700px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  position: relative;
}

.pricing-card-pro {
  border-color: #FFD93D;
  box-shadow: 0 0 30px rgba(255, 217, 61, 0.1);
}

.pricing-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a2e;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pricing-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-muted);
}

.pricing-card-pro .pricing-name {
  color: #FFD93D;
}

.pricing-price {
  font-size: 2.8rem;
  font-weight: 700;
}

.pricing-card-pro .pricing-price {
  background: linear-gradient(135deg, #FFD93D, #FFB800);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-period {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 24px;
}

.pricing-features li {
  padding: 5px 0;
  font-size: 0.85rem;
}

.pricing-features li.included {
  color: var(--text);
}

.pricing-features li.included::before {
  content: '\2713';
  color: var(--success);
  font-weight: 700;
  margin-right: 8px;
}

.pricing-features li.excluded {
  color: var(--text-muted);
  opacity: 0.5;
}

.pricing-features li.excluded::before {
  content: '\2717';
  color: var(--text-muted);
  margin-right: 8px;
}

.pricing-current {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.btn-buy {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #FFD93D, #FFB800);
  color: #1a1a2e;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s;
  box-shadow: 0 4px 20px rgba(255, 217, 61, 0.2);
}

.btn-buy:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255, 217, 61, 0.35);
}

.btn-activated {
  background: var(--surface-2);
  color: var(--success);
  cursor: default;
  box-shadow: none;
}

.btn-activated:hover {
  transform: none;
  box-shadow: none;
}

/* Responsive */
@media (max-width: 768px) {
  .app-layout { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  header h1 { font-size: 1.8rem; }
  .color-row { flex-direction: column; gap: 0; }
  .options-row { flex-direction: column; gap: 0; }
  .panel { padding: 20px; }
  .bg-glow { opacity: 0.06; }
  .header-inner { flex-direction: column; gap: 12px; }
  .modal { padding: 24px; }
}