* { box-sizing: border-box; }

:root {
  color-scheme: light;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  transition: opacity 0s;
}

body.loading { opacity: 0; }

::selection {
  background: var(--primary);
  color: #fff;
}

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

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

.fixed { position: fixed; }
.absolute { position: absolute; }
.relative { position: relative; }
.sticky { position: sticky; }
.inset-0 { inset: 0; }
.inset-4 { inset: 1rem; }
.top-0 { top: 0; }
.top-3 { top: 0.75rem; }
.top-20 { top: 5rem; }
.right-3 { right: 0.75rem; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }
.left-3 { left: 0.75rem; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-50 { z-index: 50; }
.z-\[60\] { z-index: 60; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-4 { margin-top: 1rem; }
.mt-auto { margin-top: auto; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.-ml-5 { margin-left: -1.25rem; }
.block { display: block; }
.flex { display: flex; }
.hidden { display: none; }
.h-3\.5 { height: 0.875rem; }
.h-4 { height: 1rem; }
.h-6 { height: 1.5rem; }
.h-7 { height: 1.75rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-56 { height: 14rem; }
.h-auto { height: auto; }
.h-full { height: 100%; }
.min-h-\[1\.25rem\] { min-height: 1.25rem; }
.min-h-\[400px\] { min-height: 400px; }
.min-h-screen { min-height: 100vh; }
.w-3\.5 { width: 0.875rem; }
.w-4 { width: 1rem; }
.w-6 { width: 1.5rem; }
.w-7 { width: 1.75rem; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.w-\[50\%\] { width: 50%; }
.w-auto { width: auto; }
.w-fit { width: fit-content; }
.w-full { width: 100%; }
.max-h-\[65vh\] { max-height: 65vh; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-6xl { max-width: 72rem; }
.max-w-7xl { max-width: 80rem; }
.max-w-full { max-width: 100%; }
.max-w-none { max-width: none; }
.flex-1 { flex: 1 1 0%; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.cursor-col-resize { cursor: col-resize; }
.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.space-y-2\.5 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.625rem; }
.overflow-hidden { overflow: hidden; }
.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-full { border-radius: 9999px; }
.border { border: 1px solid; }
.border-2 { border: 2px solid; }
.border-b { border-bottom: 1px solid; }
.border-b-2 { border-bottom: 2px solid; }
.border-r-\[1\.5px\] { border-right: 1.5px solid; }
.border-dashed { border-style: dashed; }
.border-white { border-color: #fff; }
.border-gray-100 { border-color: #f3f4f6; }
.border-gray-200 { border-color: #e5e7eb; }
.border-primary { border-color: var(--primary); }
.bg-white { background-color: #fff; }
.bg-white\/80 { background-color: rgba(255, 255, 255, 0.8); }
.bg-white\/90 { background-color: rgba(255, 255, 255, 0.9); }
.bg-white\/95 { background-color: rgba(255, 255, 255, 0.95); }
.bg-gray-50\/50 { background-color: rgba(249, 250, 251, 0.5); }
.bg-gray-50\/80 { background-color: rgba(249, 250, 251, 0.8); }
.bg-gray-100 { background-color: #f3f4f6; }
.bg-gray-900 { background-color: #111827; }
.bg-indigo-600 { background-color: #4f46e5; }
.bg-primary { background-color: var(--primary); }
[class*="bg-[url("] {
  background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0iI2Y5ZmRmZCI+PHJlY3Qgd2lkdGg9IjEwIiBoZWlnaHQ9IjEwIiBmaWxsPSIjZjJmMmYyIi8+PHJlY3QgeD0iMTAiIHk9IjEwIiB3aWR0aD0iMTAiIGhlaWdodD0iMTAiIGZpbGw9IiNmMmYyZjIiLz48L3N2Zz4=");
}
.p-5 { padding: 1.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.pt-12 { padding-top: 3rem; }
.pb-8 { padding-bottom: 2rem; }
.pb-12 { padding-bottom: 3rem; }
.text-center { text-align: center; }
.font-mono { font-family: Consolas, "SFMono-Regular", monospace; }
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.tracking-tight { letter-spacing: -0.025em; }
.text-white { color: #fff; }
.text-indigo-100 { color: #e0e7ff; }
.text-indigo-500 { color: #6366f1; }
.text-gray-400 { color: #9ca3af; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-800 { color: #1f2937; }
.text-gray-900 { color: #111827; }
.text-primary { color: var(--primary); }
.underline { text-decoration-line: underline; }
.underline-offset-2 { text-underline-offset: 2px; }
.antialiased { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-\[0_1px_3px_rgba\(0\,0\,0\,0\.2\)\] { box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2); }
.shadow-\[1px_0_4px_rgba\(0\,0\,0\,0\.15\)\] { box-shadow: 1px 0 4px rgba(0, 0, 0, 0.15); }
.box-content { box-sizing: content-box; }
.backdrop-blur { backdrop-filter: blur(8px); }
.backdrop-blur-sm { backdrop-filter: blur(4px); }
.backdrop-blur-md { backdrop-filter: blur(12px); }
.transition-all { transition-property: all; }
.transition-colors { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke; }
.transition-opacity { transition-property: opacity; }
.transition-transform { transition-property: transform; }
.transition-all,
.transition-colors,
.transition-opacity,
.transition-transform {
  transition-duration: 150ms;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
.duration-100 { transition-duration: 100ms; }
.duration-200 { transition-duration: 200ms; }
.object-contain { object-fit: contain; }
.object-right-bottom { object-position: right bottom; }
.pointer-events-none { pointer-events: none; }
.hover\:bg-black:hover { background-color: #000; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.hover\:bg-primary-hover:hover { background-color: var(--primary-hover); }
.hover\:text-black:hover { color: #000; }
.hover\:text-primary:hover,
.hover\:text-primary-hover:hover { color: var(--primary-hover); }
.hover\:text-white:hover { color: #fff; }
.active\:scale-\[0\.98\]:active { transform: scale(0.98); }
.group:hover .group-hover\:border-gray-300 { border-color: #d1d5db; }
.group:hover .group-hover\:opacity-100 { opacity: 1; }
.group:hover .group-hover\:scale-105 { transform: scale(1.05); }
.group:hover .group-hover\:text-gray-700 { color: #374151; }
.animate-spin { animation: spin 1s linear infinite; }

.batch-list {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
}

.batch-card {
  display: grid;
  grid-template-columns: minmax(320px, 42%) minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  min-height: 156px;
  padding: 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  background: #fff;
}

.batch-comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.5rem;
  min-width: 0;
}

.batch-pane {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 132px;
  border-radius: 0.5rem;
  background: #f9fafb;
  overflow: hidden;
}

.batch-pane-label {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 1;
  padding: 0.125rem 0.375rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.25rem;
  background: rgba(255, 255, 255, 0.9);
  color: #374151;
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 1rem;
}

.batch-image {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.batch-main {
  min-width: 0;
  text-align: left;
}

.batch-title {
  margin: 0 0 0.375rem;
  overflow: hidden;
  color: #111827;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.batch-status {
  color: #6b7280;
  font-size: 0.75rem;
  line-height: 1rem;
}

.batch-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.batch-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  min-height: 2.25rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  transition: transform 100ms, background-color 150ms;
}

.batch-button:active { transform: scale(0.98); }

.batch-button.primary {
  background: var(--primary);
  color: #fff;
}

.batch-button.secondary {
  background: #111827;
  color: #fff;
}

.batch-button svg {
  width: 1rem;
  height: 1rem;
}

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

@media (min-width: 640px) {
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 768px) {
  .md\:inline-block { display: inline-block; }
  .md\:flex-row { flex-direction: row; }
  .md\:w-64 { width: 16rem; }
  .md\:text-base { font-size: 1rem; line-height: 1.5rem; }
  .md\:text-xl { font-size: 1.25rem; line-height: 1.75rem; }
  .md\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
}

@media (max-width: 767px) {
  .batch-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .batch-pane {
    height: 116px;
  }

  .batch-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .lg\:w-72 { width: 18rem; }
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
}

/* Marketing sections (homepage) */
.nav-tabs {
  display: flex;
  gap: 0.25rem;
  background: #f3f4f6;
  border-radius: 9999px;
  padding: 0.25rem;
}

.nav-tab {
  padding: 0.375rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #6b7280;
  transition: background-color 150ms, color 150ms;
}

.nav-tab.active {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

.nav-tab:hover:not(.active) { color: #374151; }

.trust-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem 1.5rem;
  color: #6b7280;
  font-size: 0.8125rem;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.steps-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  max-width: 64rem;
  margin: 0 auto;
}

.step-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: left;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 9999px;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  max-width: 72rem;
  margin: 0 auto;
}

.feature-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: left;
}

.feature-card h3 {
  margin: 0 0 0.375rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #111827;
}

.feature-card p {
  margin: 0;
  font-size: 0.85rem;
  color: #6b7280;
  line-height: 1.5;
}

.faq-list {
  max-width: 48rem;
  margin: 0 auto;
  text-align: left;
}

.faq-item {
  border-bottom: 1px solid #e5e7eb;
  padding: 1.1rem 0;
}

.faq-item h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #111827;
}

.faq-item p {
  margin: 0;
  font-size: 0.85rem;
  color: #6b7280;
  line-height: 1.6;
}

.section-heading {
  text-align: center;
  margin-bottom: 2rem;
}

.section-heading h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #111827;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.section-heading p {
  color: #6b7280;
  font-size: 0.9rem;
  margin: 0;
}

/* Legal / about content pages */
.prose {
  max-width: 42rem;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}

.prose h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #111827;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

.prose .updated {
  color: #9ca3af;
  font-size: 0.8125rem;
  margin: 0 0 2.5rem;
}

.prose h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #111827;
  margin: 2rem 0 0.75rem;
}

.prose p, .prose li {
  color: #4b5563;
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 1rem;
}

.prose ul {
  padding-left: 1.25rem;
}

.prose a {
  color: var(--primary);
  text-decoration: underline;
}

.prose a:hover { color: var(--primary-hover); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1rem;
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #e0e7ff;
  font-size: 0.8125rem;
}

.footer-links a:hover { color: #fff; }

/* Onboarding tips */
.tips-toggle {
  border: 1px solid #e5e7eb;
  background: #fff;
  color: #6b7280;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.375rem 0.75rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: background-color 150ms, color 150ms, border-color 150ms;
}

.tips-toggle:hover { border-color: var(--primary); color: var(--primary); }
.tips-toggle[aria-pressed="true"] { border-color: var(--primary); color: var(--primary); background: #eef2ff; }

.gwf-tip {
  position: absolute;
  z-index: 70;
  max-width: 260px;
  background: #111827;
  color: #fff;
  border-radius: 0.5rem;
  padding: 0.5rem 0.6rem;
  font-size: 0.75rem;
  line-height: 1.4;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  animation: gwf-tip-in 200ms ease-out;
}

.gwf-tip::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 16px;
  width: 10px;
  height: 10px;
  background: #111827;
  transform: rotate(45deg);
}

.gwf-tip-badge {
  flex-shrink: 0;
  background: var(--primary);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.1rem 0.4rem;
  border-radius: 9999px;
  margin-top: 0.05rem;
}

.gwf-tip-text { flex: 1; }

.gwf-tip-close {
  flex-shrink: 0;
  background: transparent;
  border: 0;
  color: #9ca3af;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.gwf-tip-close:hover { color: #fff; }

@keyframes gwf-tip-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Before/after demo slider */
.demo-slider {
  position: relative;
  max-width: 32rem;
  margin: 0 auto;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid #e5e7eb;
  cursor: col-resize;
  user-select: none;
  aspect-ratio: 1061 / 1008;
}

.demo-slider img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

.demo-slider .demo-after-wrap {
  position: absolute;
  inset: 0;
  width: 50%;
  overflow: hidden;
}

.demo-slider .demo-after-wrap img { width: 100%; height: 100%; }

.demo-slider .demo-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: #fff;
  transform: translateX(-50%);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
}

.demo-slider .demo-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2.25rem;
  height: 2.25rem;
  background: #fff;
  border-radius: 9999px;
  transform: translate(-50%, -50%);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.demo-slider .demo-label {
  position: absolute;
  top: 0.75rem;
  z-index: 5;
  background: rgba(17, 24, 39, 0.75);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 0.3rem;
  pointer-events: none;
}

.demo-slider .demo-label-before { left: 0.75rem; }
.demo-slider .demo-label-after { right: 0.75rem; }

.demo-caption {
  text-align: center;
  color: #6b7280;
  font-size: 0.8125rem;
  margin-top: 0.75rem;
}

/* Narrow-phone header fix: brand text + nav no longer fit on one line by default */
@media (max-width: 480px) {
  header .h-16 {
    height: auto;
    min-height: 4rem;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  header p.text-xs.text-gray-500 {
    display: none;
  }

  .nav-tabs {
    padding: 3px;
  }

  .nav-tab {
    padding: 5px 9px;
    font-size: 0.75rem;
  }

  .tips-toggle {
    padding: 5px 9px;
    font-size: 0.7rem;
  }
}