/* ============================================================
   Convert — оформление
   Палитра: чернильно-синий, фиалковый, малиновый акцент
   ============================================================ */

:root {
  --violet: #5330e8;
  --violet-dim: #6f52ef;
  --pink: #e8367f;
  --green: #0b9c74;
  --amber: #c97a08;

  --ink: #0d1020;
  --paper: #eef0f7;
  --surface: #ffffff;
  --surface-2: #f6f7fb;
  --line: #dfe2ee;
  --text: #14172a;
  --muted: #5c6280;

  --grad: linear-gradient(96deg, var(--violet) 0%, var(--pink) 100%);
  --shadow-sm: 0 1px 2px rgba(13, 16, 32, .06), 0 4px 14px rgba(13, 16, 32, .05);
  --shadow-md: 0 2px 6px rgba(13, 16, 32, .07), 0 18px 44px rgba(13, 16, 32, .09);
  --shadow-lg: 0 30px 70px rgba(28, 20, 90, .16);

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 26px;

  --display: "Bricolage Grotesque", "Inter Tight", system-ui, sans-serif;
  --body: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --shell: 1140px;
  --ease: cubic-bezier(.22, .68, .32, 1);
}

[data-theme="dark"] {
  --ink: #04050c;
  --paper: #0a0c17;
  --surface: #12162a;
  --surface-2: #171c33;
  --line: #262c4a;
  --text: #e9ebf7;
  --muted: #969dbd;
  --violet: #7b5cff;
  --violet-dim: #8f76ff;
  --pink: #ff5c98;
  --green: #2ed3a3;
  --amber: #f0a93c;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md: 0 18px 44px rgba(0, 0, 0, .5);
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, .6);
}

/* ---------- база ---------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -.022em;
  line-height: 1.1;
  margin: 0;
}

p {
  margin: 0;
}

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

button,
input,
select {
  font: inherit;
  color: inherit;
}

svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.mono {
  font-family: var(--mono);
  font-variant-ligatures: none;
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 22px;
}

.shell--narrow {
  max-width: 800px;
}

:focus-visible {
  outline: 2.5px solid var(--violet);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 99;
  background: var(--violet);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  transition: top .2s;
}

.skip:focus {
  top: 0;
}

/* ---------- шапка ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}

.site-header.is-stuck {
  border-bottom-color: var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -.03em;
  margin-right: auto;
}

.logo__mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--grad);
  color: #fff;
  font-size: 17px;
  line-height: 1;
  transform: translateZ(0);
  transition: transform .35s var(--ease);
}

.logo:hover .logo__mark {
  transform: rotate(-8deg) scale(1.08);
}

.nav {
  display: flex;
  gap: 28px;
  font-size: 15.5px;
  color: var(--muted);
}

.nav a {
  position: relative;
  padding: 4px 0;
  transition: color .2s;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}

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

.nav a:hover::after {
  transform: scaleX(1);
}

.site-header__tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pill,
.icon-btn {
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color .2s, transform .2s var(--ease), background .2s;
}

.icon-btn {
  width: 38px;
  height: 38px;
}

.pill {
  grid-auto-flow: column;
  height: 38px;
  padding: 0 6px;
  gap: 2px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
}

.pill span {
  padding: 4px 7px;
  border-radius: 999px;
  color: var(--muted);
}

.pill__on {
  background: var(--violet);
  color: #fff !important;
}

.pill:hover,
.icon-btn:hover {
  border-color: var(--violet);
  transform: translateY(-1px);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
}

.icon-moon,
[data-theme="dark"] .icon-sun {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: block;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 4px;
}

.burger span {
  width: 16px;
  height: 1.8px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s;
}

.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(5.8px) rotate(45deg);
}

.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-5.8px) rotate(-45deg);
}

/* ---------- герой ---------- */

.hero {
  position: relative;
  padding: clamp(48px, 8vw, 92px) 0 clamp(56px, 8vw, 96px);
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 620px;
  background:
    radial-gradient(46% 52% at 22% 30%, color-mix(in srgb, var(--violet) 24%, transparent), transparent 70%),
    radial-gradient(42% 48% at 78% 18%, color-mix(in srgb, var(--pink) 18%, transparent), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
  animation: drift 22s ease-in-out infinite alternate;
}

@keyframes drift {
  to {
    transform: translate3d(-3%, 3%, 0) scale(1.08);
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 60%, transparent);
  animation: ping 2.6s ease-out infinite;
}

@keyframes ping {
  70%,
  100% {
    box-shadow: 0 0 0 9px transparent;
  }
}

.hero__title {
  font-size: clamp(38px, 6.4vw, 68px);
  font-weight: 800;
  max-width: 15ch;
}

.hero__title span {
  display: block;
}

.hero__accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  max-width: 20ch;
}

.hero__lead {
  margin-top: 22px;
  max-width: 56ch;
  font-size: clamp(16.5px, 1.6vw, 19px);
  color: var(--muted);
}

/* ---------- верстак ---------- */

.workbench {
  margin-top: clamp(30px, 4vw, 46px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: clamp(14px, 2vw, 20px);
}

.dropzone {
  position: relative;
  display: grid;
  place-items: center;
  gap: 4px;
  padding: clamp(34px, 6vw, 58px) 20px;
  border: 1.8px dashed var(--line);
  border-radius: var(--r-md);
  background:
    repeating-linear-gradient(-45deg, transparent 0 12px, color-mix(in srgb, var(--violet) 4%, transparent) 12px 13px);
  cursor: pointer;
  text-align: center;
  transition: border-color .25s, background-color .25s, transform .25s var(--ease);
}

.dropzone:hover {
  border-color: var(--violet);
}

.dropzone.is-over {
  border-color: var(--violet);
  border-style: solid;
  background-color: color-mix(in srgb, var(--violet) 8%, transparent);
  transform: scale(1.008);
}

.dropzone__icon {
  width: 40px;
  height: 40px;
  color: var(--violet);
  margin-bottom: 6px;
  transition: transform .3s var(--ease);
}

.dropzone:hover .dropzone__icon,
.dropzone.is-over .dropzone__icon {
  transform: translateY(-4px);
}

.dropzone__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
}

.dropzone__hint {
  font-size: 14.5px;
  color: var(--muted);
}

.dropzone__hint b {
  color: var(--violet);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- очередь ---------- */

.queue {
  display: grid;
  gap: 12px;
}

.queue:not(:empty) {
  margin-top: 14px;
}

.job {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface-2);
  padding: 14px 16px 15px;
  animation: jobIn .45s var(--ease) both;
}

@keyframes jobIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

.job.is-done {
  border-color: color-mix(in srgb, var(--green) 45%, var(--line));
}

.job.is-error {
  border-color: color-mix(in srgb, var(--pink) 50%, var(--line));
}

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

.job__kind {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: var(--ink);
  letter-spacing: -.02em;
}

.job__kind[data-kind="image"] {
  background: linear-gradient(150deg, var(--violet), #8f6bff);
}

.job__kind[data-kind="audio"],
.job__kind[data-kind="video"] {
  background: linear-gradient(150deg, var(--pink), #ff7ea6);
}

.job__kind[data-kind="data"] {
  background: linear-gradient(150deg, #0d7d92, #16b3a4);
}

.job__kind[data-kind="text"] {
  background: linear-gradient(150deg, #3c4463, #6b74a0);
}

.job__meta {
  min-width: 0;
  flex: 1;
}

.job__name {
  font-size: 15.5px;
  font-weight: 600;
  font-family: var(--body);
  letter-spacing: -.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.job__sub {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.job__remove {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background .2s, color .2s;
}

.job__remove:hover {
  background: color-mix(in srgb, var(--pink) 14%, transparent);
  color: var(--pink);
}

.job__remove svg {
  width: 15px;
  height: 15px;
}

/* — подпись: рельса преобразования — */

.rail {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 13px;
}

.rail__from {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  flex: 0 0 auto;
}

.rail__track {
  position: relative;
  flex: 1;
  height: 4px;
  min-width: 30px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 22%, transparent);
  overflow: hidden;
}

.rail__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: 999px;
  background: var(--grad);
  transition: width .35s var(--ease);
}

.job.is-working .rail__track::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .55) 0 6px, transparent 6px 14px);
  animation: flow .7s linear infinite;
}

@keyframes flow {
  to {
    transform: translateX(14px);
  }
}

.rail__to {
  position: relative;
  flex: 0 0 auto;
}

.rail__to select {
  appearance: none;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 7px 30px 7px 11px;
  border: 1.5px solid var(--violet);
  border-radius: 8px;
  background: color-mix(in srgb, var(--violet) 9%, var(--surface));
  color: var(--violet);
  cursor: pointer;
  transition: background .2s;
}

.rail__to select:hover {
  background: color-mix(in srgb, var(--violet) 16%, var(--surface));
}

.rail__to::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1.8px solid var(--violet);
  border-bottom: 1.8px solid var(--violet);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.job__foot {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
  min-height: 34px;
}

.job__status {
  font-size: 14px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.job.is-done .job__status {
  color: var(--green);
  font-weight: 500;
}

.job.is-error .job__status {
  color: var(--pink);
}

.delta {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--green) 15%, transparent);
  color: var(--green);
}

.delta[data-dir="up"] {
  background: color-mix(in srgb, var(--amber) 16%, transparent);
  color: var(--amber);
}

.job__foot .btn {
  margin-left: auto;
}

/* ---------- кнопки ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .25s, background .2s, border-color .2s, opacity .2s;
}

.btn svg {
  width: 17px;
  height: 17px;
}

.btn--primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 22px rgba(83, 48, 232, .34);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--violet) 36%, transparent);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px color-mix(in srgb, var(--violet) 44%, transparent);
}

.btn--ghost {
  background: var(--surface);
  border-color: var(--line);
}

.btn--ghost:hover {
  border-color: var(--violet);
  color: var(--violet);
  transform: translateY(-2px);
}

.btn--quiet {
  background: transparent;
  color: var(--muted);
  padding-inline: 14px;
}

.btn--quiet:hover {
  color: var(--pink);
}

.btn--small {
  padding: 8px 15px;
  font-size: 13.5px;
  border-radius: 10px;
}

.btn:disabled {
  opacity: .5;
  pointer-events: none;
}

.workbench__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.workbench__bar .btn--quiet {
  margin-left: auto;
}

/* ---------- настройки ---------- */

.options {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.options__toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 16px;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--muted);
  transition: color .2s, background .2s;
}

.options__toggle:hover {
  color: var(--text);
  background: var(--surface-2);
}

.options__toggle svg {
  width: 17px;
  height: 17px;
  color: var(--violet);
}

.chev {
  margin-left: auto;
  width: 7px;
  height: 7px;
  border-right: 1.8px solid currentColor;
  border-bottom: 1.8px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .3s var(--ease);
}

.options__toggle[aria-expanded="true"] .chev {
  transform: rotate(-135deg) translate(-3px, -3px);
}

.options__body {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr 1fr;
  padding: 4px 16px 18px;
}

.field {
  display: grid;
  gap: 9px;
}

.field__label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 13.5px;
  color: var(--muted);
}

.field__label output {
  color: var(--violet);
  font-weight: 700;
  font-size: 12.5px;
}

input[type="range"] {
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 26%, transparent);
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--violet);
  border: 3px solid var(--surface);
  box-shadow: 0 1px 6px rgba(0, 0, 0, .25);
  transition: transform .18s var(--ease);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.18);
}

input[type="range"]::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--violet);
  border: 3px solid var(--surface);
}

/* ---------- бегущая строка фактов ---------- */

.ticker {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 40px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.ticker li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 14px;
  color: var(--muted);
}

.ticker b {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
}

/* ---------- секции ---------- */

.section {
  padding: clamp(64px, 9vw, 108px) 0;
}

.section--dark {
  background: var(--ink);
  color: #f2f3fa;
}

[data-theme="dark"] .section--dark {
  border-block: 1px solid var(--line);
}

.section--dark .section__lead,
.section--dark .step p {
  color: #a9b0cf;
}

.section--dark .eyebrow {
  color: #8f97bd;
}

.section__head {
  max-width: 62ch;
  margin-bottom: clamp(34px, 5vw, 54px);
}

.section__title {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 700;
}

.section__lead {
  margin-top: 16px;
  color: var(--muted);
  font-size: 17px;
}

/* ---------- карточки форматов ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 16px;
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px 22px 22px;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .45s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: color-mix(in srgb, var(--violet) 35%, var(--line));
}

.card:hover::before {
  transform: scaleX(1);
}

.card__title {
  font-size: 19px;
  margin-bottom: 4px;
}

.card__note {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 18px;
}

.card__row {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.chip {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 7px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--muted);
  transition: transform .2s var(--ease), color .2s, border-color .2s;
}

.chip:hover {
  transform: translateY(-2px);
  color: var(--text);
}

.chip--out {
  background: color-mix(in srgb, var(--violet) 10%, transparent);
  border-color: color-mix(in srgb, var(--violet) 26%, transparent);
  color: var(--violet);
  font-weight: 700;
}

.chips:last-child {
  margin-bottom: 0;
}

/* ---------- шаги ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 26px 22px 24px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .035);
  transition: background .3s, border-color .3s, transform .3s var(--ease);
}

.step:hover {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .22);
  transform: translateY(-3px);
}

.step__num {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--pink);
  margin-bottom: 14px;
}

.step h3 {
  font-size: 19px;
  margin-bottom: 9px;
}

.step p {
  font-size: 15px;
  line-height: 1.62;
}

.promise {
  margin-top: 24px;
  padding: 28px 26px;
  border-radius: var(--r-md);
  background: var(--grad);
  color: #fff;
}

.promise h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.promise p {
  max-width: 74ch;
  font-size: 15.5px;
  color: rgba(255, 255, 255, .93);
}

/* ---------- FAQ ---------- */

.faq {
  display: grid;
  gap: 10px;
}

.qa {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface);
  overflow: hidden;
  transition: border-color .25s, box-shadow .25s;
}

.qa[open] {
  border-color: color-mix(in srgb, var(--violet) 40%, var(--line));
  box-shadow: var(--shadow-sm);
}

.qa summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 20px;
  cursor: pointer;
  font-family: var(--display);
  font-weight: 700;
  font-size: 17px;
  list-style: none;
  transition: color .2s;
}

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

.qa summary::after {
  content: "";
  flex: 0 0 auto;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--violet);
  border-bottom: 2px solid var(--violet);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .3s var(--ease);
}

.qa[open] summary::after {
  transform: rotate(-135deg);
}

.qa summary:hover {
  color: var(--violet);
}

.qa p {
  padding: 0 20px 19px;
  font-size: 15.5px;
  color: var(--muted);
  max-width: 72ch;
  animation: fadeIn .35s var(--ease);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

/* ---------- подвал ---------- */

.site-footer {
  background: var(--ink);
  color: #f2f3fa;
  padding: 46px 0 34px;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 26px 40px;
  align-items: flex-start;
}

.site-footer__inner>div:first-child {
  flex: 1 1 280px;
}

.site-footer__note {
  margin-top: 12px;
  max-width: 42ch;
  font-size: 14.5px;
  color: #a9b0cf;
}

.site-footer__links {
  display: grid;
  gap: 9px;
  font-size: 14.5px;
  color: #a9b0cf;
}

.site-footer__links a:hover {
  color: #fff;
}

.site-footer__legal {
  flex-basis: 100%;
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 20px;
  font-size: 12px;
  color: #7d85ab;
}

/* ---------- уведомление ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  z-index: 60;
  transform: translate(-50%, 140%);
  max-width: min(92vw, 460px);
  padding: 13px 20px;
  border-radius: 12px;
  background: var(--ink);
  color: #fff;
  font-size: 14.5px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transition: transform .4s var(--ease), opacity .3s;
}

[data-theme="dark"] .toast {
  background: var(--surface-2);
  border: 1px solid var(--line);
}

.toast.is-shown {
  transform: translate(-50%, 0);
  opacity: 1;
}

/* ---------- появление при прокрутке ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- адаптив ---------- */

@media (max-width: 860px) {
  .burger {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: 68px 0 auto;
    flex-direction: column;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 8px 22px 20px;
    box-shadow: var(--shadow-md);
    clip-path: inset(0 0 100% 0);
    transition: clip-path .38s var(--ease);
  }

  .nav.is-open {
    clip-path: inset(0 0 0 0);
  }

  .nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 17px;
  }

  .nav a:last-child {
    border-bottom: 0;
  }

  .nav a::after {
    display: none;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

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

  .job__foot .btn {
    margin-left: 0;
    width: 100%;
  }

  .workbench__bar .btn:not(.btn--quiet) {
    flex: 1 1 100%;
  }

  .workbench__bar .btn--quiet {
    margin-left: 0;
  }

  .rail {
    flex-wrap: wrap;
  }

  .rail__track {
    order: 3;
    flex-basis: 100%;
  }

  .ticker {
    gap: 10px 26px;
  }

  .ticker b {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}