/* Modern Clean Dark Mode Design System */
:root {
  --bg-main: #090d16;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #6366f1;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.15);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-x: #ffffff;
  --accent-x-bg: #000000;
  --success: #10b981;
  --danger: #ef4444;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
  --glow-primary: 0 0 24px rgba(99, 102, 241, 0.35);
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --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 {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.08) 0%, transparent 40%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 13, 22, 0.8);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  transition: var(--transition);
}

.brand-logo:hover {
  transform: translateY(-1px);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: var(--glow-primary);
}

.brand-name {
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #4f46e5 0%, #6d28d9 100%);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.btn-x-share {
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.btn-x-share:hover {
  background: #111111;
  border-color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255, 255, 255, 0.15);
}

.btn-sm {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.9rem 1.75rem;
  font-size: 1.05rem;
}

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

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.badge-primary {
  background: var(--primary-light);
  border-color: rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
}

/* Hero Section */
.hero-section {
  max-width: 900px;
  margin: 2.5rem auto 1.5rem;
  padding: 0 1.5rem;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: #a5b4fc;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #818cf8 70%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 2rem;
}

/* Upload Container */
.upload-container {
  max-width: 760px;
  margin: 0 auto 4rem;
  padding: 0 1.5rem;
  width: 100%;
}

.upload-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

/* Dropzone Area */
.dropzone {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 3.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.02);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.dropzone:hover, .dropzone.drag-active {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
  box-shadow: var(--glow-primary);
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: #818cf8;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: var(--transition);
}

.dropzone:hover .dropzone-icon {
  transform: scale(1.08);
}

.dropzone-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.dropzone-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.file-specs {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* Preview & Configure State */
.preview-panel {
  margin-top: 1rem;
}

.video-preview-box {
  width: 100%;
  max-height: 380px;
  background: #000000;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.video-preview-box video {
  width: 100%;
  max-height: 380px;
  object-fit: contain;
  display: block;
}

/* Scrub thumbnail slider */
.frame-selector-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.frame-selector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.scrub-slider {
  width: 100%;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Form Inputs */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.form-input::placeholder {
  color: var(--text-dim);
}

/* Upload Progress */
.progress-card {
  padding: 1.5rem 0;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.progress-bar-bg {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary) 0%, #c084fc 100%);
  border-radius: var(--radius-full);
  transition: width 0.15s ease-out;
}

.progress-details {
  display: flex;
  justify-content: space-between;
  margin-top: 0.6rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Success Card */
.success-panel {
  text-align: center;
}

.success-icon-wrap {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.15);
  border: 2px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.success-title {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.success-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
}

.url-box {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.4rem 0.5rem 0.4rem 1rem;
  margin-bottom: 1.5rem;
  gap: 0.5rem;
}

.url-input {
  flex: 1;
  background: transparent;
  border: none;
  color: #a5b4fc;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  outline: none;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.success-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* Recent Uploads Section */
.recent-section {
  max-width: 1200px;
  margin: 0 auto 4rem;
  padding: 0 1.5rem;
  width: 100%;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.4rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.video-grid-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.video-grid-card:hover {
  transform: translateY(-3px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: var(--shadow-lg);
}

.grid-thumb-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  overflow: hidden;
}

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

.grid-duration-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.8);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: #ffffff;
}

.grid-card-body {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.grid-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.grid-card-meta {
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}

/* Player Page Styles */
.player-main {
  flex: 1;
  padding: 2rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.player-container {
  max-width: 960px;
  margin: 0 auto;
}

.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.video-wrapper {
  position: relative;
  background: #000000;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  max-height: 70vh;
  object-fit: contain;
}

.video-info-section {
  padding: 1.75rem 2rem;
}

.video-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.video-title {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  flex: 1;
  min-width: 250px;
}

.video-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.video-meta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.uploaded-date {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.action-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.social-notice-card {
  display: flex;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  align-items: flex-start;
}

.notice-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

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

.notice-content strong {
  display: block;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.url-snippet {
  background: rgba(0, 0, 0, 0.4);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  color: #a5b4fc;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-dialog {
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 550px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.15rem;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  padding: 1.5rem;
}

.code-textarea {
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: #000;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: #a5b4fc;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  resize: none;
  outline: none;
}

.modal-footer {
  padding: 1rem 1.5rem;
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: #1e293b;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideIn 0.25s ease-out;
  transition: opacity 0.3s ease;
}

.toast-fade {
  opacity: 0;
}

@keyframes slideIn {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Error page */
.error-container {
  max-width: 500px;
  margin: 0 auto;
}
.error-code {
  font-size: 6rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary) 0%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}
.error-title {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}
.error-desc {
  color: var(--text-muted);
}

/* Footer */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .upload-card {
    padding: 1.5rem;
  }
  .dropzone {
    padding: 2.5rem 1rem;
  }
  .action-toolbar {
    width: 100%;
  }
  .action-toolbar .btn {
    flex: 1;
  }
}