:root {
  --bg-dark: #09080e;
  --bg-surface: #13111c;
  --bg-card: #1c1929;
  --bg-input: #0f0e17;
  --border-color: #2e2844;
  --border-highlight: #4a3e70;
  
  --accent-orchid: #f241be;
  --accent-cyan: #00f5d4;
  --accent-gold: #ffd166;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-red: #ef4444;

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Fira Code", Monaco, Consolas, monospace;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header */
.app-header {
  height: 56px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  font-size: 22px;
}

.brand-title {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--accent-orchid), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 6px;
  background: rgba(0, 245, 212, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 245, 212, 0.3);
  border-radius: 3px;
  font-weight: 600;
}

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

.credits-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 209, 102, 0.1);
  border: 1px solid rgba(255, 209, 102, 0.35);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-gold);
}

.btn-upgrade {
  background: linear-gradient(135deg, var(--accent-orchid), #9333ea);
  color: #fff;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: opacity 0.2s;
}

.btn-upgrade:hover {
  opacity: 0.9;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-highlight);
  color: var(--text-main);
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-cyan);
}

.user-profile-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

/* Main Studio Layout */
.studio-layout {
  display: grid;
  grid-template-columns: 360px 1fr 280px;
  height: calc(100vh - 56px);
  overflow: hidden;
}

@media (max-width: 1200px) {
  .studio-layout {
    grid-template-columns: 340px 1fr;
  }
  .right-deck {
    display: none;
  }
}

/* Left Controls Deck */
.left-deck {
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--accent-orchid);
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.prompt-textarea {
  width: 100%;
  height: 90px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 12.5px;
  line-height: 1.4;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

.prompt-textarea:focus {
  border-color: var(--accent-orchid);
}

/* Preset Chips */
.presets-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-chip {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 10.5px;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

.preset-chip:hover {
  border-color: var(--accent-orchid);
  color: var(--text-main);
  background: rgba(242, 65, 190, 0.08);
}

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

.form-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
}

.select-box, .input-box {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  color: var(--text-main);
  padding: 7px 10px;
  font-size: 12px;
  outline: none;
}

.select-box:focus, .input-box:focus {
  border-color: var(--accent-cyan);
}

/* Aspect Ratio Buttons */
.aspect-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.aspect-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 8px 4px;
  border-radius: 4px;
  font-size: 10.5px;
  text-align: center;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.15s;
}

.aspect-btn.active {
  background: rgba(0, 245, 212, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Sliders */
.slider-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

.slider-input {
  width: 100%;
  accent-color: var(--accent-orchid);
}

/* Generate Button */
.btn-generate {
  margin-top: 8px;
  background: linear-gradient(135deg, #10b981, #059669);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #fff;
  padding: 13px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.btn-generate:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
}

.btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Center Viewport */
.center-viewport {
  background: #06050a;
  display: flex;
  flex-direction: column;
  padding: 18px;
  overflow: hidden;
  position: relative;
}

.viewport-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.view-mode-tabs {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 2px;
}

.view-tab {
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.15s;
}

.view-tab.active {
  background: rgba(242, 65, 190, 0.18);
  color: var(--accent-orchid);
}

/* Canvas Display Stage */
.stage-container {
  flex: 1;
  background: 
    linear-gradient(45deg, #100f17 25%, transparent 25%), 
    linear-gradient(-45deg, #100f17 25%, transparent 25%), 
    linear-gradient(45deg, transparent 75%, #100f17 75%), 
    linear-gradient(-45deg, transparent 75%, #100f17 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  background-color: #08070d;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  perspective: 1000px;
}

.parallax-stage {
  max-width: 90%;
  max-height: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease-out;
  transform-style: preserve-3d;
  cursor: grab;
}

.rendered-artwork {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
  pointer-events: none;
}

/* Overlay loading */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 5, 10, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 50;
  backdrop-filter: blur(4px);
}

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(242, 65, 190, 0.2);
  border-top-color: var(--accent-orchid);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

/* Right Gallery Deck */
.right-deck {
  background: var(--bg-surface);
  border-left: 1px solid var(--border-color);
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.gallery-thumb {
  aspect-ratio: 1/1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: all 0.2s;
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-thumb:hover {
  border-color: var(--accent-cyan);
  transform: scale(1.03);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(5px);
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-highlight);
  border-radius: 8px;
  width: 420px;
  max-width: 90vw;
  padding: 24px;
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.9);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}

.modal-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.modal-tab {
  flex: 1;
  text-align: center;
  padding: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.modal-tab.active {
  color: var(--accent-orchid);
  border-bottom-color: var(--accent-orchid);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-submit-btn {
  background: linear-gradient(135deg, var(--accent-orchid), #9333ea);
  border: none;
  color: #fff;
  padding: 10px;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 6px;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent-orchid);
  box-shadow: 0 0 20px rgba(242, 65, 190, 0.2);
}

.pricing-price {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
}

.pricing-features {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.6;
  list-style: none;
}