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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(20, 20, 32, 0.7);
  --border: rgba(255, 255, 255, 0.06);
  --border-focus: rgba(168, 130, 255, 0.4);
  --text-primary: #f0eef6;
  --text-secondary: #8a879a;
  --text-muted: #5a5770;
  --accent: #a882ff;
  --accent-glow: rgba(168, 130, 255, 0.15);
  --accent-secondary: #ff6b9d;
  --success: #4ade80;
  --radius: 14px;
  --radius-sm: 10px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}



@font-face {
  font-family: 'Outfit';
  src: url('/font/Outfit-VariableFont_wght.ttf') format('truetype');
  font-weight: 100 900; 
  font-style: normal;
  font-display: swap;
}

html { font-size: 16px; }
body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* === BACKGROUND EFFECTS === */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse 600px 400px at 20% 20%, rgba(168, 130, 255, 0.06), transparent),
    radial-gradient(ellipse 500px 350px at 80% 80%, rgba(255, 107, 157, 0.04), transparent),
    radial-gradient(ellipse 400px 300px at 60% 30%, rgba(74, 222, 128, 0.03), transparent);
  pointer-events: none;
  z-index: 0;
}

/* Grain overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* === HEADER === */
.header {
  position: relative;
  z-index: 10;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  color: #fff;
  letter-spacing: -0.5px;
  box-shadow: 0 4px 16px rgba(168, 130, 255, 0.25);
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: #FFF;
}

.logo-text span {
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 0.35rem;
}

.header-badge {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* === MAIN LAYOUT === */
.app {
  position: relative;
  z-index: 1;
  max-width: 1380px;
  margin: 0 auto;
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 2rem;
  align-items: start;
}

/* === FORM PANEL === */
.form-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.form-panel h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  letter-spacing: -0.3px;
}

.form-panel .subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1.75rem;
  line-height: 1.5;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.form-group label .optional {
  color: var(--text-muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  margin-left: 0.25rem;
  font-size: 0.7rem;
}

input, select, textarea {
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  padding: 0.7rem 0.9rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--border-focus);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238a879a' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.5rem;
}

select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

input[type="date"], input[type="time"] {
  color-scheme: dark;
}

/* === CUSTOM TEXT INPUT === */
.custom-input-wrap {
  display: none;
  margin-top: 0.5rem;
}

.custom-input-wrap.visible {
  display: block;
}

/* === GRADIENT PICKER === */
.section-divider {
  grid-column: 1 / -1;
  height: 1px;
  background: var(--border);
  margin: 0.5rem 0;
}

.bg-section {
  grid-column: 1 / -1;
}

.bg-section label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: block;
  margin-bottom: 0.6rem;
}

.bg-toggle {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  padding: 3px;
  border: 1px solid var(--border);
}

.bg-toggle button {
  flex: 1;
  font-family: 'Outfit', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.55rem 1rem;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.bg-toggle button.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 12px rgba(168, 130, 255, 0.3);
}

.gradient-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
}

.gradient-swatch {
  aspect-ratio: 16 / 10;
  border-radius: 10px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.gradient-swatch:hover {
  transform: scale(1.05);
  border-color: rgba(255,255,255,0.15);
}

.gradient-swatch.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 4px 16px rgba(168, 130, 255, 0.2);
}

.gradient-swatch .swatch-name {
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.55rem;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* Upload area */
.upload-area {
  display: none;
}

.upload-area.visible {
  display: block;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.upload-zone:hover {
  border-color: var(--border-focus);
  background: var(--accent-glow);
}

.upload-zone.has-file {
  border-style: solid;
  border-color: var(--success);
  background: rgba(74, 222, 128, 0.05);
}

.upload-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

.upload-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.upload-text strong {
  color: var(--accent);
}

.upload-preview {
  display: none;
  width: 100%;
  max-height: 120px;
  object-fit: cover;
  border-radius: 8px;
  margin-top: 0.75rem;
}

.upload-zone.has-file .upload-preview {
  display: block;
}

.upload-zone.has-file .upload-icon,
.upload-zone.has-file .upload-text {
  display: none;
}

.upload-remove {
  display: none;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--accent-secondary);
  cursor: pointer;
  background: none;
  border: none;
  font-family: 'Outfit', sans-serif;
}

.upload-zone.has-file ~ .upload-remove {
  display: inline-block;
}

input[type="file"] {
  display: none;
}

.gradient-area {
  display: block;
}

/* === TRAVEL FIELDS === */
.travel-fields {
  display: none;
  grid-column: 1 / -1;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.travel-fields.visible {
  display: grid;
}

/* === DOWNLOAD BUTTON === */
.actions {
  grid-column: 1 / -1;
  margin-top: 0.5rem;
}

.btn-download {
  width: 100%;
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

.btn-download::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: var(--transition);
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(168, 130, 255, 0.35);
}

.btn-download:hover::before {
  opacity: 1;
}

.btn-download:active {
  transform: translateY(0);
}

.btn-download svg {
  vertical-align: middle;
  margin-right: 0.5rem;
}

/* === PREVIEW PANEL === */
.preview-panel {
  position: sticky;
  top: 2rem;
}

.preview-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-label .dot {
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.preview-frame {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.preview-canvas-wrap {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.preview-canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* === RESPONSIVE === */
@media (max-width: 960px) {
  .app {
    grid-template-columns: 1fr;
    padding: 1rem;
    gap: 1.5rem;
  }

  .preview-panel {
    position: static;
    order: -1;
  }

  .preview-canvas-wrap {
    max-height: 400px;
    aspect-ratio: auto;
  }

  .preview-canvas-wrap canvas {
    height: 400px;
    width: auto;
    margin: 0 auto;
  }

  .header {
    padding: 1rem 1.25rem;
  }
}

@media (max-width: 600px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .travel-fields.visible {
    grid-template-columns: 1fr;
  }

  .gradient-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .header-badge {
    display: none;
  }
}

/* === ANIMATIONS === */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-panel, .preview-panel {
  animation: fadeUp 0.5s ease-out both;
}

.preview-panel {
  animation-delay: 0.1s;
}