:root {
  --bg: #090a14;
  --bg-soft: #111326;
  --panel: rgba(23, 25, 48, 0.88);
  --panel-solid: #171930;
  --panel-light: #202342;
  --text: #f7f8ff;
  --muted: #aeb2c9;
  --line: rgba(255, 255, 255, 0.105);
  --lime: #b7ff3c;
  --lime-deep: #86d720;
  --violet: #8c5cff;
  --cyan: #43d9ff;
  --danger: #ff6e82;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --max: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 3%, rgba(140, 92, 255, 0.16), transparent 34rem),
    radial-gradient(circle at 95% 22%, rgba(67, 217, 255, 0.09), transparent 30rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button,
a,
select,
input {
  -webkit-tap-highlight-color: transparent;
}

button,
select {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
select:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid rgba(183, 255, 60, 0.65);
  outline-offset: 3px;
}

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

img {
  display: block;
  max-width: 100%;
}

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

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 15px;
  color: #0b0d15;
  background: var(--lime);
  border-radius: 10px;
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform 0.2s ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: max(14px, env(safe-area-inset-top)) 22px 14px;
  background: rgba(9, 10, 20, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}

.header-inner,
.site-footer,
.section-pad {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.17em;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: #10131c;
  background: linear-gradient(145deg, #d9ff75, var(--lime));
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 11px;
  box-shadow: 0 8px 24px rgba(183, 255, 60, 0.18), inset 0 -4px 10px rgba(55, 94, 0, 0.2);
  font-weight: 950;
  letter-spacing: 0;
}

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

.back-link,
.language-select {
  min-height: 42px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 13px;
  font-size: 0.82rem;
  font-weight: 750;
}

.back-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.back-link:hover {
  background: rgba(183, 255, 60, 0.08);
  border-color: rgba(183, 255, 60, 0.4);
}

.language-select {
  min-width: 70px;
  padding: 8px 30px 8px 13px;
  color-scheme: dark;
}

.section-pad {
  padding-block: 92px;
}

.hero {
  display: grid;
  min-height: 680px;
  grid-template-columns: minmax(0, 1.02fr) minmax(380px, 0.98fr);
  align-items: center;
  gap: 48px;
  padding-top: 64px;
  padding-bottom: 74px;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--lime);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3.2rem, 6.3vw, 6.6rem);
  letter-spacing: -0.065em;
  text-wrap: balance;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 27px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.65vw, 1.3rem);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-bottom: 34px;
  color: #dfe2ef;
  font-size: 0.9rem;
  font-weight: 650;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.trust-row b {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  color: #0c1116;
  background: var(--lime);
  border-radius: 50%;
  font-size: 0.72rem;
}

.primary-link,
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 10px 19px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-weight: 850;
  line-height: 1.2;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.primary-link,
.button-primary {
  color: #0c1016;
  background: linear-gradient(145deg, #d3ff7f, var(--lime));
  border-color: rgba(255, 255, 255, 0.34);
  box-shadow: 0 15px 36px rgba(138, 211, 40, 0.18), inset 0 -5px 13px rgba(64, 114, 2, 0.18);
}

.primary-link:hover,
.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(138, 211, 40, 0.24), inset 0 -5px 13px rgba(64, 114, 2, 0.18);
}

.button:disabled {
  cursor: wait;
  opacity: 0.65;
  transform: none;
}

.button-secondary {
  color: var(--text);
  background: rgba(140, 92, 255, 0.12);
  border-color: rgba(140, 92, 255, 0.35);
}

.button-ghost {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
}

.button-ghost:hover,
.button-secondary:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.19);
}

.button-small {
  min-height: 39px;
  padding: 8px 13px;
  border-radius: 11px;
  font-size: 0.78rem;
}

.hero-visual {
  position: relative;
  display: grid;
  min-height: 420px;
  place-items: center;
  isolation: isolate;
}

.hero-visual img {
  position: relative;
  z-index: 2;
  width: min(100%, 560px);
  height: auto;
  max-height: 460px;
  object-fit: contain;
  filter: drop-shadow(0 34px 55px rgba(0, 0, 0, 0.48));
}

.visual-glow {
  position: absolute;
  z-index: 1;
  width: 80%;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(140, 92, 255, 0.35), rgba(67, 217, 255, 0.08) 42%, transparent 68%);
  filter: blur(20px);
}

.optimizer-section {
  padding-top: 74px;
}

.section-heading {
  max-width: 750px;
  margin: 0 auto 38px;
  text-align: center;
}

.section-heading.narrow {
  max-width: 680px;
}

.section-heading.left {
  margin-inline: 0;
  text-align: left;
}

.section-heading h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 3.65rem);
  text-wrap: balance;
}

.section-heading > p:last-child {
  color: var(--muted);
}

.privacy-notice {
  display: flex;
  max-width: 780px;
  align-items: center;
  gap: 12px;
  margin: 0 auto 18px;
  padding: 14px 17px;
  color: #e6ebf7;
  background: rgba(183, 255, 60, 0.065);
  border: 1px solid rgba(183, 255, 60, 0.19);
  border-radius: 15px;
  font-size: 0.9rem;
}

.privacy-notice p {
  margin: 0;
}

.privacy-icon {
  display: grid;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  place-items: center;
  color: #0c1016;
  background: var(--lime);
  border-radius: 9px;
  font-weight: 950;
}

.drop-zone {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  padding: 52px 28px;
  overflow: hidden;
  text-align: center;
  background:
    linear-gradient(var(--panel-solid), var(--panel-solid)) padding-box,
    linear-gradient(135deg, rgba(183, 255, 60, 0.65), rgba(140, 92, 255, 0.55), rgba(67, 217, 255, 0.5)) border-box;
  border: 1px solid transparent;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, background 0.2s ease;
}

.drop-zone::before {
  position: absolute;
  inset: 9px;
  content: "";
  pointer-events: none;
  border: 1px dashed rgba(255, 255, 255, 0.13);
  border-radius: 24px;
}

.drop-zone.is-dragging {
  transform: scale(1.01);
  background:
    linear-gradient(#1b2034, #1b2034) padding-box,
    linear-gradient(135deg, var(--lime), var(--violet), var(--cyan)) border-box;
}

.drop-zone h3 {
  margin: 18px 0 5px;
  font-size: clamp(1.35rem, 3vw, 1.95rem);
}

.drop-zone p {
  margin-bottom: 20px;
  color: var(--muted);
}

.drop-zone small {
  display: block;
  margin-top: 16px;
  color: #858aa5;
}

.upload-icon {
  position: relative;
  display: grid;
  width: 66px;
  height: 66px;
  margin: auto;
  place-items: center;
  background: linear-gradient(145deg, rgba(183, 255, 60, 0.22), rgba(140, 92, 255, 0.17));
  border: 1px solid rgba(183, 255, 60, 0.28);
  border-radius: 20px;
}

.upload-icon span,
.upload-icon span::before,
.upload-icon span::after {
  position: absolute;
  content: "";
  background: var(--lime);
  border-radius: 999px;
}

.upload-icon span {
  width: 4px;
  height: 27px;
}

.upload-icon span::before {
  top: 0;
  left: -6px;
  width: 16px;
  height: 4px;
  transform: rotate(45deg);
  transform-origin: center;
}

.upload-icon span::after {
  top: 0;
  right: -6px;
  width: 16px;
  height: 4px;
  transform: rotate(-45deg);
  transform-origin: center;
}

.message {
  max-width: 780px;
  margin: 18px auto 0;
  padding: 14px 17px;
  border-radius: 13px;
}

.message-error {
  color: #ffdbe1;
  background: rgba(255, 110, 130, 0.1);
  border: 1px solid rgba(255, 110, 130, 0.32);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
  align-items: start;
  gap: 22px;
  margin-top: 28px;
}

.workspace[hidden] {
  display: none;
}

.panel {
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.preview-panel {
  padding: 18px;
}

.controls-panel {
  position: sticky;
  top: 90px;
  padding: 20px;
}

.panel-head {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.panel-head.compact {
  margin-bottom: 8px;
}

.panel-head > div {
  min-width: 0;
}

.panel-head h3 {
  margin: 0;
  overflow: hidden;
  font-size: 1.03rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.panel-label {
  margin-bottom: 3px;
  color: var(--lime);
  font-size: 0.67rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.canvas-stage {
  position: relative;
  display: grid;
  min-height: 480px;
  overflow: hidden;
  place-items: center;
  background-color: #0d0f1c;
  background-image:
    linear-gradient(45deg, rgba(255, 255, 255, 0.035) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255, 255, 255, 0.035) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.035) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.035) 75%);
  background-position: 0 0, 0 9px, 9px -9px, -9px 0;
  background-size: 18px 18px;
  border: 1px solid rgba(255, 255, 255, 0.075);
  border-radius: 17px;
}

#previewCanvas {
  display: block;
  max-width: 100%;
  max-height: 640px;
  cursor: crosshair;
  touch-action: none;
}

.crop-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  max-width: calc(100% - 24px);
  padding: 8px 12px;
  color: #e9eaff;
  background: rgba(10, 11, 22, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  font-size: 0.73rem;
  text-align: center;
  transform: translateX(-50%);
  pointer-events: none;
}

.crop-hint[hidden] {
  display: none;
}

.image-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.image-meta span {
  min-width: 0;
  padding: 12px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
}

.image-meta small,
.image-meta strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.image-meta small {
  margin-bottom: 2px;
  color: #888ea9;
  font-size: 0.68rem;
}

.image-meta strong {
  font-size: 0.87rem;
}

.icon-button {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  place-items: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 11px;
  font-size: 1.1rem;
}

.icon-button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
}

.control-group {
  min-width: 0;
  margin: 0;
  padding: 17px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.control-group legend,
.legend-row legend {
  padding: 0;
  color: #e8e9f4;
  font-size: 0.78rem;
  font-weight: 800;
}

.format-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
  margin-top: 10px;
}

.format-tabs input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.format-tabs span {
  display: grid;
  min-height: 42px;
  place-items: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: 11px;
  font-size: 0.76rem;
  font-weight: 850;
  transition: background 0.17s ease, color 0.17s ease, border-color 0.17s ease;
}

.format-tabs input:checked + span {
  color: #10131c;
  background: var(--lime);
  border-color: var(--lime);
}

.format-tabs input:focus-visible + span {
  outline: 3px solid rgba(183, 255, 60, 0.65);
  outline-offset: 2px;
}

.field-note {
  margin: 8px 0 0;
  color: #8187a2;
  font-size: 0.68rem;
  line-height: 1.45;
}

.dimension-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 34px minmax(0, 1fr);
  align-items: end;
  gap: 7px;
  margin-top: 10px;
}

.dimension-grid label > span {
  display: block;
  margin-bottom: 5px;
  color: #9096ae;
  font-size: 0.68rem;
}

.input-unit {
  display: flex;
  min-width: 0;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 11px;
}

.input-unit:focus-within {
  border-color: rgba(183, 255, 60, 0.5);
}

.input-unit input {
  width: 100%;
  min-width: 0;
  padding: 10px 5px 10px 10px;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 0.83rem;
  font-weight: 750;
}

.input-unit span {
  padding-right: 9px;
  color: #727890;
  font-size: 0.66rem;
}

.ratio-button {
  position: relative;
  display: grid;
  width: 34px;
  height: 42px;
  place-items: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.ratio-button.is-locked {
  color: var(--lime);
  border-color: rgba(183, 255, 60, 0.28);
}

.ratio-chain,
.ratio-chain::before {
  display: block;
  width: 13px;
  height: 7px;
  border: 2px solid currentColor;
  border-radius: 999px;
  content: "";
}

.ratio-chain {
  transform: rotate(-42deg) translate(-2px, 1px);
}

.ratio-chain::before {
  transform: translate(5px, 2px);
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-top: 10px;
  color: #9ba0b7;
  font-size: 0.7rem;
  line-height: 1.4;
}

.check-row input {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  margin: 1px 0 0;
  accent-color: var(--lime);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.chip {
  min-height: 34px;
  padding: 6px 10px;
  color: #bfc3d4;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 750;
}

.chip:hover {
  color: #10131c;
  background: var(--lime);
  border-color: var(--lime);
}

.legend-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.legend-row output {
  color: var(--lime);
  font-size: 0.75rem;
  font-weight: 850;
}

.range {
  width: 100%;
  height: 5px;
  margin: 14px 0 6px;
  background: linear-gradient(90deg, var(--violet), var(--lime));
  border-radius: 999px;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.range::-webkit-slider-thumb {
  width: 20px;
  height: 20px;
  background: var(--text);
  border: 4px solid var(--lime);
  border-radius: 50%;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  appearance: none;
  -webkit-appearance: none;
}

.range::-moz-range-thumb {
  width: 13px;
  height: 13px;
  background: var(--text);
  border: 4px solid var(--lime);
  border-radius: 50%;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  color: #747a94;
  font-size: 0.63rem;
}

.select-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  margin-top: 10px;
}

.select-row select {
  width: 100%;
  min-width: 0;
  padding: 9px 30px 9px 11px;
  color: var(--text);
  color-scheme: dark;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 11px;
  font-size: 0.75rem;
}

.download-card {
  padding-top: 17px;
}

.download-card > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.download-card small {
  color: #898fa8;
  font-size: 0.68rem;
}

.download-card strong {
  overflow: hidden;
  color: #e7e9f6;
  font-size: 0.73rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.button-download {
  width: 100%;
}

.button-download > span:first-child {
  font-size: 1.3rem;
}

.processing-status {
  min-height: 20px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.68rem;
  text-align: center;
}

.features {
  padding-top: 100px;
}

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

.feature-card {
  min-width: 0;
  min-height: 450px;
  padding: 25px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015)),
    var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.feature-card-visual {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.feature-card img {
  width: 100%;
  max-height: 290px;
  object-fit: contain;
  filter: drop-shadow(0 20px 32px rgba(0, 0, 0, 0.28));
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.privacy-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    radial-gradient(circle at 50% 25%, rgba(183, 255, 60, 0.21), transparent 35%),
    linear-gradient(145deg, rgba(183, 255, 60, 0.07), rgba(140, 92, 255, 0.06)),
    var(--bg-soft);
}

.shield-art {
  position: relative;
  display: grid;
  width: 160px;
  height: 190px;
  margin: 8px auto 48px;
  place-items: center;
  background: linear-gradient(145deg, #d5ff84, var(--lime-deep));
  border-radius: 45% 45% 48% 48% / 27% 27% 68% 68%;
  box-shadow: 0 26px 55px rgba(144, 226, 36, 0.17), inset 0 -18px 30px rgba(61, 110, 0, 0.22);
}

.shield-art span {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  color: #10151b;
  background: rgba(255, 255, 255, 0.56);
  border-radius: 50%;
  font-size: 2rem;
  font-weight: 950;
}

.how-panel {
  display: grid;
  grid-template-columns: minmax(250px, 0.72fr) minmax(0, 1.28fr);
  gap: 65px;
  padding: clamp(30px, 6vw, 70px);
  background:
    radial-gradient(circle at 10% 20%, rgba(140, 92, 255, 0.18), transparent 30rem),
    var(--panel-solid);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
}

.steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

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

.steps li > span {
  color: var(--lime);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.steps h3 {
  margin-bottom: 5px;
  font-size: 1.1rem;
}

.steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.faq-list {
  max-width: 850px;
  margin-inline: auto;
}

.faq-list details {
  background: rgba(255, 255, 255, 0.025);
  border-top: 1px solid var(--line);
}

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

.faq-list summary {
  position: relative;
  padding: 21px 50px 21px 4px;
  font-weight: 800;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 10px;
  color: var(--lime);
  content: "+";
  font-size: 1.45rem;
  transform: translateY(-50%);
}

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

.faq-list details p {
  max-width: 720px;
  margin: -5px 0 22px 4px;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  padding-top: 45px;
  padding-bottom: max(42px, env(safe-area-inset-bottom));
  color: #777d96;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
}

.site-footer p {
  margin: 12px 0 0;
}

.site-footer a:not(.brand) {
  color: #c7cadd;
}

.footer-brand {
  color: var(--text);
}

.noscript {
  position: fixed;
  right: 16px;
  bottom: 16px;
  left: 16px;
  z-index: 1000;
  padding: 16px;
  color: #fff;
  background: #9d2134;
  border-radius: 12px;
  text-align: center;
}

@media (max-width: 1020px) {
  .hero {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 18px;
    padding-top: 80px;
    text-align: center;
  }

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

  .hero h1,
  .hero-lead {
    margin-inline: auto;
  }

  .trust-row {
    justify-content: center;
  }

  .hero-visual {
    min-height: 350px;
  }

  .hero-visual img {
    width: min(82vw, 520px);
    max-height: 350px;
  }

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

  .controls-panel {
    position: static;
  }

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

  .privacy-card {
    grid-column: 1 / -1;
    min-height: 380px;
  }

  .how-panel {
    grid-template-columns: 1fr;
    gap: 15px;
  }
}

@media (max-width: 700px) {
  .header-inner,
  .site-footer,
  .section-pad {
    width: min(100% - 28px, var(--max));
  }

  .site-header {
    padding-right: 14px;
    padding-left: 14px;
  }

  .brand {
    gap: 8px;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 9px;
  }

  .header-actions {
    gap: 7px;
  }

  .back-link {
    max-width: 142px;
    min-height: 38px;
    padding: 7px 10px;
    overflow: hidden;
    font-size: 0.68rem;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .language-select {
    min-width: 58px;
    min-height: 38px;
    padding: 7px 23px 7px 9px;
    font-size: 0.7rem;
  }

  .section-pad {
    padding-block: 68px;
  }

  .hero {
    padding-top: 55px;
    padding-bottom: 40px;
  }

  .hero h1 {
    font-size: clamp(2.55rem, 13vw, 4.4rem);
  }

  .hero-visual {
    min-height: 270px;
  }

  .trust-row {
    gap: 8px 12px;
    font-size: 0.78rem;
  }

  .primary-link {
    width: 100%;
  }

  .optimizer-section {
    padding-top: 58px;
  }

  .drop-zone {
    padding: 42px 18px;
    border-radius: 23px;
  }

  .drop-zone::before {
    border-radius: 16px;
  }

  .privacy-notice {
    align-items: flex-start;
    font-size: 0.78rem;
  }

  .workspace {
    gap: 14px;
  }

  .preview-panel,
  .controls-panel {
    padding: 14px;
    border-radius: 18px;
  }

  .canvas-stage {
    min-height: 320px;
  }

  #previewCanvas {
    max-height: 480px;
  }

  .image-meta {
    grid-template-columns: 1fr 1fr;
  }

  .image-meta span:last-child {
    grid-column: 1 / -1;
  }

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

  .feature-card,
  .privacy-card {
    min-height: 390px;
    grid-column: auto;
  }

  .feature-card img {
    max-height: 245px;
  }

  .how-panel {
    padding: 28px 20px;
    border-radius: 22px;
  }

  .steps li {
    grid-template-columns: 45px 1fr;
    gap: 10px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 430px) {
  .header-inner {
    gap: 8px;
  }

  .brand > span:last-child {
    display: none;
  }

  .back-link {
    max-width: 154px;
  }

  .hero h1 {
    font-size: 2.65rem;
  }

  .hero-visual {
    min-height: 220px;
  }

  .section-heading h2 {
    font-size: 2rem;
  }

  .panel-head {
    align-items: flex-start;
  }

  .panel-head .button-small {
    max-width: 112px;
    flex: 0 0 auto;
    white-space: normal;
  }

  .canvas-stage {
    min-height: 250px;
  }

  .dimension-grid {
    grid-template-columns: minmax(0, 1fr) 30px minmax(0, 1fr);
    gap: 4px;
  }

  .input-unit input {
    padding-left: 7px;
  }

  .ratio-button {
    width: 30px;
  }
}

@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;
  }
}

@media (pointer: coarse) {
  .chip,
  .format-tabs span,
  .button-small {
    min-height: 44px;
  }
}

@supports (overflow: clip) {
  html,
  body {
    overflow-x: clip;
  }
}