:root {
  --page: #f7f8ff;
  --surface: #ffffff;
  --surface-soft: #f4f5fb;
  --text: #171a2b;
  --muted: #677089;
  --line: #e4e7f1;
  --primary: #5b4df7;
  --primary-dark: #4739df;
  --primary-soft: #eeecff;
  --red: #ff2d35;
  --success: #168b57;
  --success-soft: #e8f8f0;
  --warning: #b26800;
  --warning-soft: #fff5df;
  --danger: #c83b45;
  --danger-soft: #fff0f1;
  --shadow-sm: 0 8px 24px rgba(31, 37, 78, 0.08);
  --shadow-lg: 0 24px 70px rgba(43, 48, 94, 0.14);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--text);
  background: var(--page);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

button,
a,
label[for] {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

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

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  left: 16px;
  top: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  color: #fff;
  background: var(--text);
  transform: translateY(-150%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid rgba(228, 231, 241, 0.85);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 72px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(145deg, var(--red), #ff545b);
  box-shadow: 0 8px 18px rgba(255, 45, 53, 0.24);
}

.brand-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.brand-icon svg rect {
  fill: transparent;
  stroke: currentColor;
  stroke-width: 1.6;
}

.primary-nav {
  display: flex;
  justify-content: flex-end;
  gap: 30px;
  color: #4e556d;
  font-size: 0.94rem;
  font-weight: 650;
}

.primary-nav a,
.github-button {
  transition: color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

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

.github-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  font-weight: 750;
  font-size: 0.9rem;
  box-shadow: 0 5px 14px rgba(28, 33, 66, 0.05);
}

.github-button svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.github-button:hover {
  color: var(--primary);
  border-color: #ccc8ff;
  transform: translateY(-1px);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 76px;
  background:
    radial-gradient(circle at 76% 40%, rgba(126, 111, 255, 0.22), transparent 30%),
    radial-gradient(circle at 95% 55%, rgba(104, 184, 255, 0.22), transparent 26%),
    linear-gradient(180deg, #fff 0%, #f7f8ff 100%);
}

.hero::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -80px;
  top: 36px;
  opacity: 0.38;
  background-image: radial-gradient(#b9b4ff 1.2px, transparent 1.2px);
  background-size: 15px 15px;
  mask-image: linear-gradient(to bottom, #000, transparent);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(500px, 1.12fr);
  align-items: center;
  gap: 68px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow,
.section-kicker {
  margin: 0 0 15px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid #dedbff;
  border-radius: 999px;
  color: #5950d9;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-sm);
  letter-spacing: 0;
  text-transform: none;
}

.eyebrow span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(22, 139, 87, 0.12);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  letter-spacing: -0.045em;
  line-height: 1.08;
}

h1 {
  max-width: 700px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 5vw, 5.35rem);
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 3.1vw, 3.25rem);
}

h3 {
  letter-spacing: -0.02em;
}

.hero-lede {
  max-width: 620px;
  margin-bottom: 25px;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.6vw, 1.28rem);
}

.feature-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.feature-pills span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  border: 1px solid #e8e9f4;
  border-radius: 999px;
  color: #4e556d;
  background: rgba(255, 255, 255, 0.72);
  font-size: 0.82rem;
  font-weight: 700;
}

.feature-pills svg,
.privacy-note svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.primary-link,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 0;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, #6758fb, #4d3ee7);
  box-shadow: 0 14px 30px rgba(79, 63, 226, 0.25);
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.primary-link {
  padding: 13px 18px;
}

.primary-button {
  width: 100%;
  min-height: 50px;
  padding: 12px 18px;
}

.primary-link:hover,
.primary-button:not(:disabled):hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(79, 63, 226, 0.31);
}

.primary-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  box-shadow: none;
}

.hero-visual {
  position: relative;
  min-height: 450px;
}

.browser-mockup {
  position: absolute;
  inset: 22px 54px 30px 4px;
  overflow: hidden;
  border: 1px solid rgba(222, 224, 240, 0.9);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow-lg);
  transform: perspective(1200px) rotateY(-2deg) rotateX(1deg);
}

.browser-top {
  height: 46px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  border-bottom: 1px solid #edf0f5;
}

.browser-top > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d9dce7;
}

.browser-top > div {
  width: 44%;
  height: 18px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 999px;
  background: #f3f4f8;
}

.mock-content {
  height: calc(100% - 46px);
  display: grid;
  grid-template-columns: 70px 1fr;
}

.mock-content aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 16px;
  border-right: 1px solid #f0f1f5;
}

.mock-content aside i {
  height: 8px;
  border-radius: 999px;
  background: #e4e6ed;
}

.mock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 28px 20px;
}

.mock-card b,
.mock-card small,
.floating-preview i,
.phone-mockup i {
  display: block;
  border-radius: 999px;
  background: #e3e5ed;
}

.mock-card b {
  width: 88%;
  height: 8px;
  margin-top: 10px;
}

.mock-card small {
  width: 58%;
  height: 6px;
  margin-top: 7px;
}

.mock-thumbnail {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, #ff353c, #d70f1a);
}

.mock-thumbnail.neutral {
  background: linear-gradient(135deg, #e6e8ef, #cfd3dc);
}

.mock-play {
  width: 36px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: var(--red);
  background: #fff;
  font-size: 0.7rem;
}

.floating-preview {
  position: absolute;
  z-index: 3;
  width: 215px;
  padding: 15px;
  border: 1px solid rgba(224, 226, 240, 0.9);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 45px rgba(44, 49, 89, 0.14);
  backdrop-filter: blur(12px);
}

.floating-preview small {
  display: block;
  margin-bottom: 10px;
  color: #6c7388;
  font-size: 0.66rem;
}

.floating-preview > div {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 10px;
}

.floating-preview span {
  height: 48px;
  border-radius: 8px;
  background: linear-gradient(135deg, #ff3b42, #db101b);
}

.floating-preview i {
  height: 8px;
  margin-top: 8px;
}

.search-preview {
  left: -16px;
  bottom: 14px;
}

.suggested-preview {
  right: 8px;
  bottom: 34px;
}

.phone-mockup {
  position: absolute;
  z-index: 4;
  top: 96px;
  right: -8px;
  width: 116px;
  height: 246px;
  padding: 25px 8px 10px;
  border: 5px solid #171927;
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 20px 50px rgba(35, 40, 80, 0.22);
}

.phone-notch {
  position: absolute;
  top: 5px;
  left: 50%;
  width: 42px;
  height: 12px;
  border-radius: 999px;
  background: #171927;
  transform: translateX(-50%);
}

.phone-mockup small {
  display: block;
  margin-bottom: 8px;
  color: #70768a;
  font-size: 0.56rem;
}

.phone-thumb {
  display: block;
  aspect-ratio: 16 / 9;
  border-radius: 7px;
  background: linear-gradient(135deg, #ff343c, #d40d18);
}

.phone-thumb.second {
  margin-top: 11px;
  background: #e1e4eb;
}

.phone-mockup i {
  height: 5px;
  margin-top: 6px;
}

.checker-section {
  padding: 84px 0 98px;
}

.section-heading {
  margin-bottom: 34px;
}

.section-heading.centered {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.section-heading > p:not(.section-kicker),
.result-heading > p,
.content-section p,
.process-list p,
.faq-list p {
  color: var(--muted);
}

.tool-shell {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

.tool-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 0.9fr;
}

.tool-step {
  min-width: 0;
  padding: 30px;
}

.tool-step + .tool-step {
  border-left: 1px solid var(--line);
}

.step-heading {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 24px;
}

.step-heading > span {
  flex: 0 0 auto;
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #796dff, #594bf2);
  box-shadow: 0 8px 18px rgba(91, 77, 247, 0.22);
  font-size: 0.82rem;
  font-weight: 800;
}

.step-heading h3 {
  margin: 1px 0 2px;
  font-size: 1rem;
}

.step-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.drop-zone {
  min-height: 174px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 22px;
  border: 1.5px dashed #cfd3e5;
  border-radius: var(--radius-md);
  color: #687087;
  background: #fbfbfe;
  text-align: center;
  cursor: pointer;
  transition: border 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.drop-zone:hover,
.drop-zone.is-dragging {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-1px);
}

.drop-zone strong {
  color: var(--text);
  font-size: 0.94rem;
}

.drop-zone > span:last-child {
  font-size: 0.83rem;
}

.drop-zone u {
  color: var(--primary);
  text-decoration: none;
  font-weight: 750;
}

.upload-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 4px;
  border-radius: 13px;
  color: var(--primary);
  background: var(--primary-soft);
}

.upload-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.inline-message {
  min-height: 20px;
  margin-top: 10px;
  color: var(--danger);
  font-size: 0.8rem;
  font-weight: 650;
}

.inline-message.is-success {
  color: var(--success);
}

.upload-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
  margin-top: 3px;
}

.upload-item {
  position: relative;
  overflow: hidden;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
}

.upload-item.is-selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.upload-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #eef0f6;
}

.upload-item-info {
  padding: 7px 8px 8px;
}

.upload-item-info strong,
.upload-item-info small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.upload-item-info strong {
  font-size: 0.7rem;
}

.upload-item-info small {
  color: var(--muted);
  font-size: 0.62rem;
}

.remove-image {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: rgba(20, 23, 36, 0.78);
  cursor: pointer;
}

.remove-image svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.field-group + .field-group {
  margin-top: 17px;
}

.field-group label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 7px;
  font-size: 0.82rem;
  font-weight: 750;
}

.field-group label small {
  color: #8990a4;
  font-weight: 550;
}

.input-wrap {
  position: relative;
}

.input-wrap input {
  width: 100%;
  min-height: 46px;
  padding: 10px 74px 10px 13px;
  border: 1px solid #dfe2ec;
  border-radius: 11px;
  outline: 0;
  color: var(--text);
  background: #fff;
  transition: border 0.18s ease, box-shadow 0.18s ease;
}

.input-wrap input::placeholder {
  color: #a0a6b6;
}

.input-wrap input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

.input-wrap output {
  position: absolute;
  top: 50%;
  right: 12px;
  color: #9197a8;
  font-size: 0.7rem;
  transform: translateY(-50%);
}

.input-wrap svg {
  position: absolute;
  top: 50%;
  right: 12px;
  width: 18px;
  height: 18px;
  fill: none;
  stroke: #8f96a8;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transform: translateY(-50%);
  pointer-events: none;
}

#video-duration {
  padding-right: 42px;
}

.field-help {
  display: block;
  margin-top: 5px;
  color: #8a91a4;
  font-size: 0.7rem;
}

.action-step {
  display: flex;
  flex-direction: column;
}

.action-illustration {
  position: relative;
  width: 176px;
  height: 106px;
  margin: 5px auto 26px;
}

.action-illustration > div {
  position: absolute;
  inset: 9px 22px 8px 0;
  padding: 9px;
  border: 1px solid #e0e3ef;
  border-radius: 13px;
  background: #f9fafe;
  transform: rotate(-3deg);
}

.action-illustration > div span {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  background: linear-gradient(135deg, #ff3940, #d9101a);
}

.action-illustration > div i {
  display: inline-block;
  width: 52px;
  height: 6px;
  margin: 7px 6px 0 0;
  border-radius: 999px;
  background: #dcdfe9;
}

.action-illustration > svg {
  position: absolute;
  right: 2px;
  bottom: 0;
  width: 48px;
  height: 48px;
  padding: 10px;
  border-radius: 50%;
  fill: none;
  stroke: #fff;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  background: var(--success);
  box-shadow: 0 10px 22px rgba(22, 139, 87, 0.2);
}

.privacy-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin: 15px 0 0;
  color: #737a90;
  font-size: 0.76rem;
}

.privacy-note svg {
  stroke: var(--success);
}

.tool-benefits {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  border-top: 1px solid var(--line);
  background: var(--line);
}

.tool-benefits span {
  min-width: 0;
  padding: 17px 20px;
  background: #fbfbfe;
}

.tool-benefits b,
.tool-benefits small {
  display: block;
}

.tool-benefits b {
  margin-bottom: 2px;
  font-size: 0.77rem;
}

.tool-benefits small {
  color: var(--muted);
  font-size: 0.67rem;
}

.results {
  margin-top: 72px;
}

.result-section + .result-section {
  margin-top: 70px;
}

.result-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 24px;
}

.result-heading h2 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 2.6vw, 2.6rem);
}

.result-heading > p {
  max-width: 380px;
  margin-bottom: 4px;
  text-align: right;
}

.technical-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.technical-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.technical-card-header {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  align-items: center;
  padding: 15px;
  border-bottom: 1px solid var(--line);
}

.technical-card-header img {
  width: 96px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 9px;
  background: #eff1f7;
}

.technical-card-header h3 {
  overflow: hidden;
  margin: 0 0 5px;
  font-size: 0.9rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.readiness-badge,
.check-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  font-weight: 800;
}

.readiness-badge {
  padding: 5px 8px;
  font-size: 0.64rem;
}

.readiness-badge.success,
.check-status.pass {
  color: var(--success);
  background: var(--success-soft);
}

.readiness-badge.warning,
.check-status.warn {
  color: var(--warning);
  background: var(--warning-soft);
}

.readiness-badge.danger,
.check-status.fail {
  color: var(--danger);
  background: var(--danger-soft);
}

.check-list {
  margin: 0;
  padding: 5px 15px 13px;
  list-style: none;
}

.check-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #eff1f5;
}

.check-list li:last-child {
  border-bottom: 0;
}

.check-copy strong,
.check-copy small {
  display: block;
}

.check-copy strong {
  margin-bottom: 2px;
  font-size: 0.77rem;
}

.check-copy small {
  color: var(--muted);
  font-size: 0.68rem;
}

.check-status {
  align-self: start;
  padding: 4px 7px;
  font-size: 0.62rem;
  text-transform: capitalize;
}

.preview-workspace {
  min-width: 0;
}

.workspace-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 13px;
}

.tab-list,
.image-selector,
.visibility-controls {
  display: flex;
  gap: 8px;
}

.tab-list,
.visibility-controls {
  overflow-x: auto;
  scrollbar-width: none;
}

.tab-list::-webkit-scrollbar,
.visibility-controls::-webkit-scrollbar {
  display: none;
}

.tab-button,
.control-chip,
.image-select-button {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: #596177;
  background: #fff;
  font-size: 0.76rem;
  font-weight: 750;
  cursor: pointer;
  transition: border 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.tab-button.is-active,
.control-chip[aria-pressed="true"],
.image-select-button.is-active {
  border-color: #c7c2ff;
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.image-select-button {
  width: 38px;
  padding-inline: 0;
}

.visibility-controls {
  margin-bottom: 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f9fafe;
}

.preview-stage {
  min-height: 510px;
  overflow: hidden;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #eef0f5;
}

.youtube-window {
  width: min(100%, 920px);
  min-height: 430px;
  margin-inline: auto;
  overflow: hidden;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 22px 55px rgba(32, 36, 68, 0.15);
}

.yt-topbar {
  height: 54px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 20px;
  border-bottom: 1px solid #eceef2;
}

.yt-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 900;
}

.yt-brand span {
  width: 23px;
  height: 16px;
  display: grid;
  place-items: center;
  border-radius: 5px;
  color: #fff;
  background: var(--red);
  font-size: 0.5rem;
}

.yt-searchbar {
  width: min(50%, 360px);
  height: 28px;
  margin-inline: auto;
  border-radius: 999px;
  background: #f1f2f5;
}

.yt-icons {
  display: flex;
  gap: 7px;
}

.yt-icons i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #d7dae1;
}

.yt-body {
  display: grid;
  grid-template-columns: 76px 1fr;
  min-height: 375px;
}

.yt-sidebar {
  padding: 24px 17px;
  border-right: 1px solid #eff0f3;
}

.yt-sidebar i {
  display: block;
  height: 7px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: #dfe1e7;
}

.layout-home .yt-content {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-content: start;
  gap: 19px 14px;
  padding: 25px 20px;
}

.yt-card {
  min-width: 0;
}

.thumbnail-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  background: #dfe2e9;
}

.thumbnail-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

.timestamp {
  position: absolute;
  right: 5px;
  bottom: 5px;
  z-index: 3;
  padding: 2px 4px;
  border-radius: 4px;
  color: #fff;
  background: rgba(0, 0, 0, 0.82);
  font-size: 0.62rem;
  font-weight: 800;
}

.safe-overlay {
  position: absolute;
  z-index: 2;
  inset: 7%;
  display: none;
  border: 2px dashed rgba(255, 255, 255, 0.95);
  border-radius: 7px;
  box-shadow: 0 0 0 999px rgba(255, 35, 48, 0.24);
  pointer-events: none;
}

.safe-overlay::before {
  content: "Keep key content inside";
  position: absolute;
  left: 6px;
  top: 6px;
  padding: 3px 5px;
  border-radius: 5px;
  color: #fff;
  background: rgba(20, 22, 34, 0.78);
  font-size: 0.52rem;
  font-weight: 800;
}

.video-meta {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 9px;
  padding-top: 9px;
}

.channel-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(145deg, #7c70ff, #4134d8);
}

.video-copy {
  min-width: 0;
}

.video-title {
  display: -webkit-box;
  overflow: hidden;
  margin: 0 0 3px;
  font-size: 0.72rem;
  font-weight: 750;
  line-height: 1.25;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.video-channel,
.video-stats {
  display: block;
  color: #73788a;
  font-size: 0.61rem;
}

.placeholder-card .thumbnail-frame {
  background: linear-gradient(135deg, #e3e5eb, #cfd2da);
}

.placeholder-card .video-title,
.placeholder-card .video-channel,
.placeholder-card .video-stats {
  color: transparent;
  border-radius: 999px;
  background: #dfe1e7;
}

.placeholder-card .video-title {
  width: 90%;
  height: 7px;
  margin: 2px 0 7px;
}

.placeholder-card .video-channel {
  width: 64%;
  height: 6px;
  margin-bottom: 5px;
}

.placeholder-card .video-stats {
  width: 47%;
  height: 6px;
}

.layout-search .yt-content {
  padding: 24px;
}

.search-card {
  display: grid;
  grid-template-columns: minmax(210px, 38%) 1fr;
  gap: 17px;
  max-width: 690px;
}

.search-card + .search-placeholder {
  margin-top: 22px;
}

.search-copy {
  padding-top: 4px;
}

.search-copy .video-title {
  font-size: 1rem;
  -webkit-line-clamp: 2;
}

.search-copy .video-channel,
.search-copy .video-stats {
  font-size: 0.72rem;
}

.search-description {
  max-width: 420px;
  margin-top: 13px;
  color: #858a99;
  font-size: 0.7rem;
}

.search-placeholder {
  opacity: 0.75;
}

.layout-suggested .yt-body {
  grid-template-columns: 1fr 310px;
}

.watch-area {
  margin: 24px;
  border-radius: 13px;
  background: #202126;
}

.suggested-list {
  padding: 20px 17px;
  border-left: 1px solid #eceef2;
}

.suggested-card {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 9px;
}

.suggested-card + .suggested-placeholder {
  margin-top: 14px;
}

.suggested-card .thumbnail-frame {
  border-radius: 7px;
}

.suggested-card .video-title {
  font-size: 0.7rem;
}

.layout-mobile {
  width: 350px;
  min-height: 590px;
  border: 8px solid #161823;
  border-radius: 36px;
}

.layout-mobile .yt-topbar {
  height: 48px;
  padding: 0 13px;
}

.layout-mobile .yt-searchbar,
.layout-mobile .yt-sidebar {
  display: none;
}

.layout-mobile .yt-body {
  display: block;
  min-height: 520px;
}

.layout-mobile .yt-content {
  padding: 12px 0 20px;
}

.mobile-card .thumbnail-frame {
  border-radius: 0;
}

.mobile-card .video-meta {
  padding: 10px 12px 15px;
}

.mobile-placeholder {
  margin-top: 7px;
  opacity: 0.8;
}

.preview-stage.is-blur .thumbnail-frame img,
.compare-grid.is-blur .thumbnail-frame img {
  filter: blur(4px);
  transform: scale(1.035);
}

.preview-stage.is-grayscale .thumbnail-frame img,
.compare-grid.is-grayscale .thumbnail-frame img {
  filter: grayscale(1);
}

.preview-stage.is-dim .thumbnail-frame img,
.compare-grid.is-dim .thumbnail-frame img {
  filter: brightness(0.45);
}

.preview-stage.is-blur.is-grayscale .thumbnail-frame img,
.compare-grid.is-blur.is-grayscale .thumbnail-frame img {
  filter: blur(4px) grayscale(1);
}

.preview-stage.is-blur.is-dim .thumbnail-frame img,
.compare-grid.is-blur.is-dim .thumbnail-frame img {
  filter: blur(4px) brightness(0.45);
}

.preview-stage.is-grayscale.is-dim .thumbnail-frame img,
.compare-grid.is-grayscale.is-dim .thumbnail-frame img {
  filter: grayscale(1) brightness(0.45);
}

.preview-stage.is-blur.is-grayscale.is-dim .thumbnail-frame img,
.compare-grid.is-blur.is-grayscale.is-dim .thumbnail-frame img {
  filter: blur(4px) grayscale(1) brightness(0.45);
}

.preview-stage.show-safe-zone .safe-overlay,
.compare-grid.show-safe-zone .safe-overlay {
  display: block;
}

.preview-stage.is-tiny .youtube-window {
  max-width: 590px;
  transform-origin: top center;
}

.preview-stage.is-tiny .yt-card:not(.placeholder-card),
.preview-stage.is-tiny .search-card:not(.search-placeholder),
.preview-stage.is-tiny .suggested-card:not(.suggested-placeholder),
.preview-stage.is-tiny .mobile-card:not(.mobile-placeholder) {
  transform: scale(0.72);
  transform-origin: top left;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.compare-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.compare-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.compare-card-header h3 {
  margin: 0;
  font-size: 0.85rem;
}

.compare-card-header small {
  color: var(--muted);
}

.compare-preview {
  padding: 14px;
}

.compare-preview .video-title {
  font-size: 0.78rem;
}

.content-section {
  padding: 92px 0;
  background: #fff;
}

.muted-section {
  background: #f1f3fa;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.feature-grid article > span {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 22px;
  border-radius: 12px;
  color: var(--primary);
  background: var(--primary-soft);
  font-size: 0.78rem;
  font-weight: 850;
}

.feature-grid h3 {
  margin-bottom: 10px;
}

.feature-grid p {
  margin-bottom: 0;
}

.two-column-content,
.faq-wrap {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 90px;
  align-items: start;
}

.process-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 17px;
  padding: 22px 0;
  border-bottom: 1px solid #dce0eb;
}

.process-list li:first-child {
  padding-top: 0;
}

.process-list li > span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: var(--primary);
  background: #fff;
  font-weight: 850;
}

.process-list h3 {
  margin: 0 0 5px;
}

.process-list p {
  margin: 0;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 20px 42px 20px 0;
  font-weight: 780;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 16px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--primary);
  background: var(--primary-soft);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  padding: 0 42px 20px 0;
  margin-bottom: 0;
}

.site-footer {
  padding: 26px 20px;
  border-top: 1px solid var(--line);
  color: #72798d;
  background: #fff;
  text-align: center;
  font-size: 0.82rem;
}

.site-footer p {
  margin: 0;
}

:focus-visible {
  outline: 3px solid rgba(91, 77, 247, 0.32);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1060px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 760px;
    text-align: center;
    margin-inline: auto;
  }

  .eyebrow,
  .feature-pills {
    justify-content: center;
    margin-inline: auto;
  }

  .hero-visual {
    width: min(100%, 720px);
    margin-inline: auto;
  }

  .tool-grid {
    grid-template-columns: 1fr 1fr;
  }

  .action-step {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    border-left: 0 !important;
  }

  .action-step .step-heading {
    align-self: flex-start;
  }

  .action-illustration {
    margin-top: -15px;
  }

  .action-step .primary-button {
    max-width: 440px;
    margin-inline: auto;
  }

  .tool-benefits {
    grid-template-columns: repeat(3, 1fr);
  }

  .technical-grid,
  .compare-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .primary-nav {
    display: none;
  }

  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .hero {
    padding-top: 62px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .tool-step + .tool-step {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .action-step {
    grid-column: auto;
  }

  .tool-benefits {
    grid-template-columns: repeat(2, 1fr);
  }

  .result-heading {
    display: block;
  }

  .result-heading > p {
    margin-top: 8px;
    text-align: left;
  }

  .workspace-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .tab-list,
  .visibility-controls {
    width: 100%;
  }

  .preview-stage {
    min-height: 430px;
    padding: 18px;
  }

  .yt-body {
    grid-template-columns: 56px 1fr;
  }

  .layout-home .yt-content {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .layout-suggested .yt-body {
    grid-template-columns: 1fr;
  }

  .watch-area {
    display: none;
  }

  .suggested-list {
    border-left: 0;
  }

  .two-column-content,
  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 35px;
  }
}

@media (max-width: 620px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .site-header {
    position: relative;
  }

  .header-inner {
    min-height: 64px;
  }

  .brand span:last-child {
    font-size: 0.88rem;
  }

  .github-button span {
    display: none;
  }

  .github-button {
    width: 39px;
    height: 39px;
    justify-content: center;
    padding: 0;
  }

  .hero {
    padding: 45px 0 56px;
  }

  h1 {
    font-size: clamp(2.65rem, 14vw, 4rem);
  }

  .hero-lede {
    font-size: 1rem;
  }

  .feature-pills span {
    font-size: 0.74rem;
  }

  .hero-visual {
    min-height: 310px;
    margin-top: 10px;
  }

  .browser-mockup {
    inset: 10px 30px 28px 0;
  }

  .mock-content {
    grid-template-columns: 44px 1fr;
  }

  .mock-content aside {
    padding-inline: 10px;
  }

  .mock-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 20px 12px;
  }

  .mock-card:nth-child(3) {
    display: none;
  }

  .phone-mockup {
    top: 64px;
    right: -5px;
    width: 86px;
    height: 190px;
    border-width: 4px;
    border-radius: 20px;
  }

  .floating-preview {
    width: 158px;
    padding: 10px;
  }

  .floating-preview > div {
    grid-template-columns: 56px 1fr;
  }

  .floating-preview span {
    height: 34px;
  }

  .suggested-preview {
    display: none;
  }

  .checker-section,
  .content-section {
    padding: 66px 0;
  }

  .tool-shell {
    border-radius: 20px;
  }

  .tool-step {
    padding: 22px 18px;
  }

  .upload-list {
    grid-template-columns: repeat(3, minmax(76px, 1fr));
    overflow-x: auto;
  }

  .tool-benefits {
    grid-template-columns: 1fr;
  }

  .technical-grid,
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .preview-stage {
    min-height: 390px;
    padding: 12px;
  }

  .youtube-window {
    min-height: 360px;
    border-radius: 14px;
  }

  .yt-topbar {
    height: 44px;
    padding: 0 10px;
  }

  .yt-searchbar {
    display: none;
  }

  .yt-body {
    display: block;
    min-height: 315px;
  }

  .yt-sidebar {
    display: none;
  }

  .layout-home .yt-content {
    grid-template-columns: 1fr;
    padding: 15px;
  }

  .layout-home .placeholder-card {
    display: none;
  }

  .layout-search .yt-content {
    padding: 15px;
  }

  .search-card {
    grid-template-columns: 42% 1fr;
    gap: 10px;
  }

  .search-copy .video-title {
    font-size: 0.72rem;
  }

  .search-description {
    display: none;
  }

  .suggested-list {
    padding: 14px;
  }

  .layout-mobile {
    width: min(100%, 330px);
    min-height: 530px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}