:root {
  --bg-primary: #0b0d13;
  --bg-secondary: #131722;
  --bg-card: rgba(23, 27, 40, 0.75);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --accent: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 10% 20%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 90% 80%, rgba(236, 72, 153, 0.1) 0px, transparent 50%);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

/* Navbar */
.navbar {
  background: rgba(11, 13, 19, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.logo-icon {
  font-size: 28px;
}

.brand-title {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge-20s {
  background: var(--accent-gradient);
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 6px;
  color: #fff;
  font-weight: 800;
}

.brand-sub {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.server-status {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  color: #34d399;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success);
}

.btn-nav-auth {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-nav-auth:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.15);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  text-decoration: underline;
}

/* Main Container */
.main-container {
  max-width: 980px;
  margin: 0 auto;
  padding: 40px 24px 80px 24px;
  flex: 1;
  width: 100%;
}

/* Hero Section */
.hero-section {
  text-align: center;
  margin-bottom: 36px;
}

.hero-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.25;
  margin-bottom: 14px;
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto;
}

/* Studio Card */
.studio-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.studio-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
}

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

.studio-tag {
  font-size: 0.8rem;
  font-weight: 800;
  color: #a5b4fc;
  letter-spacing: 1px;
}

.pipeline-badge {
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #38bdf8;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 700;
}

.prompt-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 20px;
  transition: border-color 0.2s;
}

.prompt-box:focus-within {
  border-color: var(--border-focus);
}

textarea#prompt-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-family: inherit;
  font-size: 1.05rem;
  resize: vertical;
  min-height: 80px;
}

textarea#prompt-input::placeholder {
  color: #64748b;
}

.prompt-tools {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-tool {
  background: rgba(99, 102, 241, 0.15);
  color: #c7d2fe;
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-tool:hover {
  background: rgba(99, 102, 241, 0.3);
  color: #fff;
}

.char-count {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Studio Controls */
.studio-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

@media (max-width: 680px) {
  .studio-controls {
    grid-template-columns: 1fr;
  }
}

.control-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.select-wrapper select {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  cursor: pointer;
}

.select-wrapper select:focus {
  border-color: var(--primary);
}

.ratio-toggle {
  display: flex;
  gap: 10px;
}

.btn-ratio {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-ratio.active {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.15);
  color: #fff;
}

/* Generate Button */
.btn-generate {
  width: 100%;
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(99, 102, 241, 0.6);
}

.btn-generate:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Progress Section */
.progress-section {
  margin-bottom: 40px;
  animation: fadeIn 0.3s ease;
}

.progress-card {
  background: var(--bg-card);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.progress-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  color: #cbd5e1;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.progress-percent {
  font-weight: 800;
  color: var(--primary);
  font-size: 1.1rem;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 10px;
  transition: width 0.4s ease;
}

.scenes-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

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

.scene-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.scene-badge {
  font-size: 0.75rem;
  font-weight: 800;
  color: #38bdf8;
  margin-bottom: 6px;
}

.scene-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Result Section */
.result-section {
  margin-bottom: 40px;
  animation: fadeIn 0.4s ease;
}

.result-card {
  background: var(--bg-card);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.result-header {
  margin-bottom: 18px;
}

.result-badge {
  display: inline-block;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 800;
  font-size: 0.75rem;
  margin-bottom: 8px;
}

.result-title {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.4;
}

.video-player-container {
  width: 100%;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.video-player-container video {
  width: 100%;
  max-height: 480px;
  display: block;
}

.result-actions {
  display: flex;
  gap: 14px;
}

@media (max-width: 600px) {
  .result-actions {
    flex-direction: column;
  }
}

.btn-action {
  flex: 1;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: none;
  font-family: inherit;
  transition: all 0.2s;
}

.btn-action.download {
  background: var(--success);
  color: #fff;
}

.btn-action.download:hover {
  background: #059669;
}

.btn-action.copy {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-action.copy:hover {
  border-color: var(--accent);
}

/* Gallery Section */
.gallery-section {
  margin-top: 20px;
}

.gallery-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.gallery-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.btn-refresh {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
}

.btn-refresh:hover {
  color: #fff;
  border-color: var(--primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s, border-color 0.2s;
}

.gallery-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.4);
}

.gallery-card-thumb {
  position: relative;
  background: #000;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.gallery-duration-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
}

.gallery-card-body {
  padding: 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.gallery-card-prompt {
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gallery-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 10px;
}

.gallery-actions {
  display: flex;
  gap: 8px;
}

.btn-card-action {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.btn-card-action:hover {
  color: #fff;
}

.btn-card-action.delete:hover {
  color: var(--danger);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 420px;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-tabs {
  display: flex;
  gap: 12px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  padding-bottom: 4px;
  transition: color 0.2s;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Google Sign In Button */
.google-auth-wrapper {
  margin-bottom: 20px;
}

.btn-google {
  width: 100%;
  background: #ffffff;
  color: #1f2937;
  border: 1px solid #e5e7eb;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
  transition: all 0.2s ease;
}

.btn-google:hover {
  background: #f9fafb;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-1px);
}

.google-icon {
  flex-shrink: 0;
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 18px 0 10px 0;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-divider span {
  padding: 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.modal-body {
  padding: 24px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.form-group input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
}

.form-group input:focus {
  border-color: var(--primary);
}

.btn-submit {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 6px;
  transition: background 0.2s;
}

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

.quick-demo-box {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.btn-quick {
  display: block;
  width: 100%;
  margin-top: 8px;
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #38bdf8;
  padding: 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
}

.auth-error {
  margin-top: 14px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  text-align: center;
}

.footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--border-color);
  color: #64748b;
  font-size: 0.82rem;
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}