* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Google Sans", Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

[hidden] {
  display: none !important;
}

body {
  background-color: #ffffff;
  color: #202124;
}

a {
  color: inherit;
}

/* Navigation */
.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 14px 40px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #f1f3f4;
}

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

.logo-icon {
  color: #1a73e8;
  font-size: 30px;
  margin-right: 10px;
}

.logo-text {
  font-size: 22px;
  font-weight: 500;
  color: #3c4043;
  letter-spacing: -0.3px;
}

.nav-links {
  display: flex;
  gap: 24px;
  flex: 1;
}

.nav-links a {
  text-decoration: none;
  color: #5f6368;
  font-size: 15px;
}

.nav-links a:hover {
  color: #1a73e8;
}

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

.nav-user {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #3c4043;
}

.nav-user img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
}

/* GitHub */
.gh-star {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid #dadce0;
  border-radius: 18px;
  color: #24292f;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.2s;
}

.gh-star:hover {
  background: #f6f8fa;
}

.gh-star-icon {
  flex-shrink: 0;
}

.gh-star-icon .star-outline {
  fill: currentColor;
  transition: fill 0.15s;
}

.gh-star-icon .star-fill {
  fill: #e3b341;
  opacity: 0;
  transition: opacity 0.15s;
}

.gh-star:hover .gh-star-icon .star-fill,
.gh-star:focus-visible .gh-star-icon .star-fill {
  opacity: 1;
}

.gh-star:hover .gh-star-icon .star-outline,
.gh-star:focus-visible .gh-star-icon .star-outline {
  fill: #c69026;
}

.gh-count {
  padding-left: 8px;
  border-left: 1px solid #dadce0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.trust a {
  color: inherit;
}

.final-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #ffffff;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.2s;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #1a73e8;
  color: white;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 28px;
  font-size: 16px;
  font-weight: 500;
  transition:
    background-color 0.2s,
    box-shadow 0.2s,
    transform 0.2s;
}

.btn-primary .material-icons {
  font-size: 20px;
  transition: transform 0.2s;
}

.btn-primary:hover {
  background-color: #1557b0;
  box-shadow:
    0 1px 3px 0 rgba(60, 64, 67, 0.3),
    0 4px 8px 3px rgba(60, 64, 67, 0.15);
}

.btn-primary:hover .material-icons {
  transform: translateX(3px);
}

.btn-primary.small {
  padding: 9px 18px;
  font-size: 14px;
}

.btn-primary.light {
  background: #ffffff;
  color: #1a73e8;
}

.btn-primary.light:hover {
  background: #e8f0fe;
}

/* Hero */
.hero {
  display: flex;
  align-items: center;
  gap: 64px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 72px 40px 56px;
}

.content-left {
  flex: 1;
  max-width: 600px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #e6f4ea;
  color: #137333;
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}

.pill .material-icons {
  font-size: 18px;
}

.hero-title {
  font-size: 68px;
  font-weight: 700;
  line-height: 1.05;
  color: #1f1f1f;
  margin-bottom: 24px;
  letter-spacing: -1.5px;
}

.accent {
  color: #1a73e8;
}

.hero-subtitle {
  font-size: 20px;
  line-height: 1.55;
  color: #5f6368;
  margin-bottom: 36px;
  max-width: 540px;
}

.cta-buttons {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  list-style: none;
  margin-top: 28px;
  font-size: 14px;
  color: #5f6368;
}

.trust li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.trust .material-icons {
  font-size: 18px;
  color: #1e8e3e;
}

.content-right {
  flex: 1;
  max-width: 560px;
}

.drop-card {
  background: linear-gradient(135deg, #e8f0fe 0%, #f3e8fd 100%);
  padding: 14px;
  border-radius: 28px;
  cursor: pointer;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  box-shadow: 0 8px 24px rgba(26, 115, 232, 0.12);
}

.drop-card:hover,
.drop-card.dragging {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(26, 115, 232, 0.2);
}

.drop-card:focus-visible {
  outline: 3px solid #1a73e8;
  outline-offset: 3px;
}

.drop-inner {
  background: #ffffff;
  border: 2px dashed #aecbfa;
  border-radius: 20px;
  padding: 56px 24px;
  text-align: center;
  transition:
    border-color 0.2s,
    background-color 0.2s;
}

.drop-card.dragging .drop-inner {
  border-color: #1a73e8;
  background: #f8fbff;
}

.drop-icon {
  font-size: 56px;
  color: #1a73e8;
  margin-bottom: 12px;
}

.drop-inner h2 {
  font-size: 24px;
  font-weight: 500;
  color: #1f1f1f;
  margin-bottom: 6px;
}

.drop-inner p {
  color: #5f6368;
  margin-bottom: 20px;
}

.link {
  color: #1a73e8;
  font-weight: 500;
  text-decoration: underline;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.chips span {
  background: #f1f3f4;
  color: #3c4043;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.drop-caption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 13px;
  color: #5f6368;
}

.drop-caption .material-icons {
  font-size: 16px;
  color: #1e8e3e;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 1200px;
  margin: 0 auto 24px;
  padding: 0 40px;
  gap: 16px;
}

.stats div {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  border-radius: 16px;
  background: #f8f9fa;
  text-align: center;
}

.stats strong {
  font-size: 26px;
  color: #1f1f1f;
}

.stats span {
  font-size: 14px;
  color: #5f6368;
  margin-top: 4px;
}

/* Sections */
.section {
  padding: 80px 40px;
}

.section > * {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section.alt {
  background: #f8fafd;
}

.section-title {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.8px;
  text-align: center;
  color: #1f1f1f;
  margin-bottom: 12px;
}

.section-sub {
  text-align: center;
  color: #5f6368;
  font-size: 18px;
  margin-bottom: 40px;
}

.format-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.format-card {
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-rows: auto auto;
  column-gap: 12px;
  align-items: center;
  padding: 18px;
  border: 1px solid #e0e0e0;
  border-radius: 16px;
  text-decoration: none;
  transition:
    border-color 0.2s,
    box-shadow 0.2s,
    transform 0.2s;
}

.format-card:hover {
  border-color: #1a73e8;
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.12);
  transform: translateY(-2px);
}

.format-card .material-icons {
  grid-row: span 2;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: #e8f0fe;
  color: #1a73e8;
  display: flex;
  align-items: center;
  justify-content: center;
}

.format-card strong {
  font-size: 16px;
  color: #1f1f1f;
}

.format-card span:last-child {
  font-size: 13px;
  color: #5f6368;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 40px auto 48px;
}

.step {
  background: #ffffff;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 1px 3px rgba(60, 64, 67, 0.12);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #1a73e8;
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 16px;
}

.step h3,
.benefit h3 {
  font-size: 20px;
  margin-bottom: 8px;
  color: #1f1f1f;
}

.step p,
.benefit p {
  color: #5f6368;
  line-height: 1.55;
}

.hero-image-wrapper {
  max-width: 960px;
  background-color: #ffffff;
  padding: 16px;
  border-radius: 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.hero-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid #e0e0e0;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.benefit .material-icons {
  font-size: 32px;
  color: #1a73e8;
  margin-bottom: 12px;
}

.faq {
  max-width: 760px;
  margin-top: 40px;
}

.faq details {
  background: #ffffff;
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 12px;
  box-shadow: 0 1px 3px rgba(60, 64, 67, 0.12);
}

.faq summary {
  cursor: pointer;
  font-size: 17px;
  font-weight: 500;
  color: #1f1f1f;
}

.faq p {
  margin-top: 12px;
  color: #5f6368;
  line-height: 1.6;
}

.final-cta {
  text-align: center;
  padding: 80px 40px;
  background: linear-gradient(135deg, #1a73e8 0%, #6142d4 100%);
  color: #ffffff;
}

.final-cta h2 {
  font-size: 44px;
  letter-spacing: -0.8px;
  margin-bottom: 12px;
}

.final-cta p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 32px;
}

/* Conversion pages */
.breadcrumb {
  font-size: 14px;
  color: #5f6368;
  margin-bottom: 16px;
}

.breadcrumb a {
  color: #1a73e8;
  text-decoration: none;
}

.page-title {
  font-size: 60px;
}

.uses {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.uses li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 20px;
  border: 1px solid #e0e0e0;
  border-radius: 16px;
  color: #3c4043;
  line-height: 1.5;
}

.uses .material-icons {
  color: #1e8e3e;
}

.all-title {
  text-align: center;
  font-size: 18px;
  margin: 40px auto 16px;
  color: #1f1f1f;
}

.all-converters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.all-converters a {
  padding: 6px 14px;
  border-radius: 16px;
  background: #f1f3f4;
  color: #3c4043;
  font-size: 14px;
  text-decoration: none;
}

.all-converters a:hover {
  background: #e8f0fe;
  color: #1a73e8;
}

.share-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 18px;
  margin-top: 28px;
  font-size: 15px;
}

.share-row a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #ffffff;
  opacity: 0.9;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.share-row a:hover {
  opacity: 1;
}

.share-row .material-icons {
  font-size: 18px;
}

.footer {
  display: flex;
  justify-content: space-between;
  padding: 24px 40px;
  color: #5f6368;
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.legal {
  max-width: 760px;
  margin: 0 auto;
}

.legal h2 {
  font-size: 20px;
  margin: 32px 0 8px;
  color: #1f1f1f;
}

.legal p {
  color: #3c4043;
  line-height: 1.65;
}

.legal a {
  color: #1a73e8;
}

.footer a {
  color: #1a73e8;
  text-decoration: none;
}

@media (max-width: 960px) {
  .topnav {
    padding: 12px 16px;
    gap: 12px;
  }

  .nav-links,
  #gsi-nav {
    display: none;
  }

  .nav-actions {
    margin-left: auto;
    gap: 8px;
  }

  .logo-text,
  .btn-primary.small {
    white-space: nowrap;
  }

  .hero {
    flex-direction: column;
    padding: 40px 16px;
    gap: 40px;
  }

  .content-left {
    text-align: center;
    max-width: 100%;
  }

  .hero-title {
    font-size: 44px;
  }

  .hero-subtitle {
    font-size: 18px;
    margin: 0 auto 32px;
  }

  .cta-buttons,
  .trust {
    justify-content: center;
  }

  .content-right {
    width: 100%;
  }

  .drop-inner {
    padding: 36px 16px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 16px;
  }

  .section {
    padding: 56px 16px;
  }

  .section-title {
    font-size: 30px;
  }

  .steps,
  .benefits,
  .uses {
    grid-template-columns: 1fr;
  }

  .page-title {
    font-size: 44px;
  }

  .final-cta {
    padding: 56px 16px;
  }

  .final-cta h2 {
    font-size: 32px;
  }

  .footer-links {
    justify-content: center;
  }

  .footer {
    flex-direction: column;
    gap: 8px;
    padding: 24px 16px;
    text-align: center;
  }
}

@media (max-width: 420px) {
  .gh-star > span:not(.gh-count),
  .nav-user {
    display: none;
  }

  .logo-icon {
    font-size: 26px;
    margin-right: 6px;
  }

  .logo-text {
    font-size: 19px;
  }

  .btn-primary.small {
    padding: 8px 14px;
    font-size: 13px;
  }
}