:root {
  color-scheme: dark;
  --black: #000;
  --surface: #07080c;
  --surface-soft: #0b0d14;
  --text: #f7f8fb;
  --muted: #a7abb7;
  --faint: #6f7482;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.22);
  --cyan: #12d9ff;
  --blue: #1677ff;
  --violet: #8d38ff;
  --accent: linear-gradient(110deg, var(--cyan), var(--blue) 48%, var(--violet));
  --max: 1220px;
  --page-pad: clamp(24px, 5vw, 72px);
  --radius: 22px;
  --shadow: 0 32px 90px rgba(22, 119, 255, 0.18);
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "Hiragino Sans", "Yu Gothic", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  background: var(--black);
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--black);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 72% 10%, rgba(22, 119, 255, 0.09), transparent 34%),
    radial-gradient(circle at 88% 52%, rgba(141, 56, 255, 0.055), transparent 30%);
}

a {
  color: inherit;
}

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

button {
  color: inherit;
  font: inherit;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 10px;
  background: white;
  color: black;
  transform: translateY(-160%);
}

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

.shell {
  overflow: clip;
}

.topbar {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.86);
  backdrop-filter: blur(22px);
}

.topbar__inner,
.section__inner,
.footer__inner,
.doc-hero,
.doc-content {
  width: min(calc(100% - (var(--page-pad) * 2)), var(--max));
  margin: 0 auto;
}

.topbar__inner {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: white;
  font-size: 1.32rem;
  font-weight: 760;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 11px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav a {
  color: #d4d6dc;
  font-size: 0.94rem;
  font-weight: 590;
  text-decoration: none;
  transition: color 160ms ease;
}

.nav a:hover,
.nav a:focus-visible,
.nav a[aria-current="page"] {
  color: white;
}

.nav a[aria-current="page"]::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 5px;
  background: var(--accent);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.lang-switch span {
  color: var(--faint);
}

.lang-switch button {
  padding: 4px 2px;
  border: 0;
  background: transparent;
  color: var(--faint);
  font-size: 0.88rem;
  cursor: pointer;
}

.lang-switch button.is-active {
  color: var(--cyan);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--surface);
}

.menu-button span {
  width: 18px;
  height: 1.5px;
  background: currentColor;
  box-shadow: 0 6px 0 currentColor, 0 -6px 0 currentColor;
}

.hero {
  border-bottom: 1px solid var(--line);
}

.hero__inner {
  width: min(calc(100% - (var(--page-pad) * 2)), 1400px);
  min-height: 650px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(390px, 0.82fr) minmax(520px, 1.18fr);
  align-items: center;
  gap: 20px;
  padding: 58px 0 54px;
}

.hero__copy {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

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

.hero h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-size: clamp(3.45rem, 5.2vw, 5.4rem);
  font-weight: 780;
  letter-spacing: -0.068em;
  line-height: 0.99;
}

.hero__lead {
  max-width: 570px;
  margin-bottom: 34px;
  color: #b8bbc5;
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  font-size: 0.96rem;
  font-weight: 690;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.42);
}

.button--primary {
  border: 0;
  background: var(--accent);
  color: white;
  box-shadow: 0 16px 44px rgba(73, 54, 255, 0.27);
}

.button--ghost {
  background: rgba(0, 0, 0, 0.5);
}

.hero__media {
  position: relative;
  min-width: 0;
}

.hero__media::before {
  content: "";
  position: absolute;
  inset: 12% 8%;
  z-index: -1;
  background: radial-gradient(ellipse, rgba(20, 128, 255, 0.2), transparent 68%);
  filter: blur(24px);
}

.hero__media img {
  width: 100%;
  max-height: 620px;
  object-fit: contain;
  filter: saturate(0.96) contrast(1.03);
  mask-image: linear-gradient(90deg, transparent 0, black 8%, black 96%, transparent 100%);
}

.section {
  padding: clamp(92px, 11vw, 156px) 0;
  border-bottom: 1px solid var(--line);
}

.section h2,
.doc-hero h1 {
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 760;
  letter-spacing: -0.06em;
  line-height: 1.02;
}

.section__intro {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
}

.workflow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 5vw, 72px);
}

.workflow__item {
  min-width: 0;
}

.workflow__number {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 760;
  letter-spacing: 0.08em;
}

.workflow__item:nth-child(2) .workflow__number {
  color: var(--blue);
}

.workflow__item:nth-child(3) .workflow__number {
  color: #a868ff;
}

.workflow__visual {
  height: 142px;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  color: var(--cyan);
}

.duration-dial {
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid rgba(18, 217, 255, 0.48);
  border-radius: 50%;
  box-shadow: inset 0 0 26px rgba(18, 217, 255, 0.08), 0 0 32px rgba(18, 217, 255, 0.1);
}

.duration-dial span {
  color: #8eeeff;
  font-size: 1.08rem;
}

.duration-dial strong {
  color: #d7f9ff;
  font-size: 2.5rem;
  font-weight: 520;
}

.film-stack {
  position: relative;
  width: 150px;
  height: 110px;
}

.film-stack span {
  position: absolute;
  inset: 15px 20px;
  border: 2px solid var(--blue);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(18, 217, 255, 0.16), rgba(141, 56, 255, 0.18));
  box-shadow: 0 0 24px rgba(22, 119, 255, 0.2);
}

.film-stack span:nth-child(1) { transform: rotate(-12deg) translate(-9px, 1px); opacity: 0.55; }
.film-stack span:nth-child(2) { transform: rotate(0); }
.film-stack span:nth-child(3) { transform: rotate(12deg) translate(9px, 1px); opacity: 0.62; border-color: var(--violet); }

.keep-mark {
  width: 112px;
  height: 126px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(141, 56, 255, 0.7);
  border-radius: 18px;
  background: linear-gradient(155deg, rgba(22, 119, 255, 0.15), rgba(141, 56, 255, 0.16));
  box-shadow: 0 0 36px rgba(141, 56, 255, 0.14);
}

.keep-mark svg {
  width: 44px;
  color: #b37aff;
}

.workflow h3 {
  margin-bottom: 14px;
  font-size: 2rem;
  font-weight: 710;
  letter-spacing: -0.04em;
}

.workflow p {
  max-width: 330px;
  margin-bottom: 0;
  color: var(--muted);
}

.privacy-story {
  display: grid;
  grid-template-columns: minmax(300px, 0.78fr) minmax(430px, 1.22fr);
  align-items: center;
  gap: clamp(56px, 10vw, 150px);
}

.privacy-story__visual {
  position: relative;
  min-height: 440px;
  display: grid;
  place-items: center;
}

.privacy-story__visual::before,
.privacy-story__visual::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(18, 217, 255, 0.18);
  border-radius: 50%;
}

.privacy-story__visual::before { width: 390px; height: 390px; }
.privacy-story__visual::after { width: 290px; height: 290px; border-color: rgba(141, 56, 255, 0.25); }

.privacy-story__visual img {
  position: relative;
  z-index: 2;
  width: min(58%, 230px);
  border-radius: 24%;
  box-shadow: var(--shadow);
}

.privacy-story__copy h2 {
  max-width: 720px;
}

.privacy-points {
  margin: 38px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
  list-style: none;
}

.privacy-points li {
  padding: 17px 0;
  border-top: 1px solid var(--line);
  color: #d6d8df;
  font-weight: 620;
}

.features-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.68fr) minmax(520px, 1.32fr);
  gap: clamp(50px, 9vw, 130px);
}

.feature-list {
  border-top: 1px solid var(--line);
}

.feature-row {
  display: grid;
  grid-template-columns: 58px minmax(170px, 0.7fr) minmax(250px, 1.3fr);
  align-items: center;
  gap: 28px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.feature-row::after {
  content: "";
  grid-column: 1 / -1;
  height: 1px;
  margin-bottom: -31px;
  background: var(--accent);
  opacity: 0;
  transform: scaleX(0.5);
  transform-origin: left;
  transition: opacity 180ms ease, transform 220ms ease;
}

.feature-row:hover::after {
  opacity: 0.9;
  transform: scaleX(1);
}

.feature-row svg {
  width: 40px;
  height: 40px;
  color: var(--cyan);
}

.feature-row:nth-child(2) svg,
.feature-row:nth-child(3) svg { color: var(--blue); }
.feature-row:nth-child(4) svg { color: #a868ff; }

.feature-row h3 {
  margin: 0;
  font-size: 1.3rem;
  letter-spacing: -0.025em;
}

.feature-row p {
  margin: 0;
  color: var(--muted);
}

.closing {
  position: relative;
  min-height: 430px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.closing::after {
  content: "";
  position: absolute;
  inset: 0 0 0 38%;
  background: url("/assets/hero-moments.png") center / cover no-repeat;
  opacity: 0.35;
  mask-image: linear-gradient(90deg, transparent 0, black 30%, black 100%);
}

.closing__copy {
  position: relative;
  z-index: 2;
}

.closing h2 {
  max-width: 520px;
}

.footer {
  border-top: 1px solid var(--line);
}

.footer__inner {
  min-height: 120px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 34px;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.footer__brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

.footer nav {
  display: flex;
  gap: 26px;
}

.footer nav a,
.footer__contact {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.footer__contact {
  justify-self: end;
}

.footer__legal {
  width: min(calc(100% - (var(--page-pad) * 2)), var(--max));
  margin: 0 auto;
  padding: 0 0 30px;
  color: var(--faint);
  font-size: 0.78rem;
}

.doc-main {
  min-height: 70vh;
}

.doc-hero {
  --doc-film-rgb: 18, 217, 255;
  position: relative;
  min-height: 390px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}

.doc-hero::after {
  content: "";
  position: absolute;
  right: 2%;
  width: 38%;
  aspect-ratio: 1.6;
  pointer-events: none;
  background: rgba(var(--doc-film-rgb), 0.34);
  -webkit-mask: url("/assets/film-strip.svg") center / 100% 100% no-repeat;
  mask: url("/assets/film-strip.svg") center / 100% 100% no-repeat;
  filter: drop-shadow(0 0 18px rgba(var(--doc-film-rgb), 0.08));
}

.doc--privacy .doc-hero {
  --doc-film-rgb: 176, 86, 255;
}

.doc-hero h1 {
  position: relative;
  z-index: 1;
  max-width: 790px;
}

.doc-hero p {
  position: relative;
  z-index: 1;
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 1.22rem;
}

.doc-content {
  padding: 70px 0 130px;
}

.faq-list {
  border-top: 1px solid rgba(18, 217, 255, 0.65);
}

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

.faq-list summary {
  position: relative;
  padding: 27px 54px 27px 44px;
  color: #edfaff;
  font-size: 1.22rem;
  font-weight: 680;
  letter-spacing: -0.02em;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::before {
  content: "";
  position: absolute;
  top: 35px;
  left: 7px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
  transition: transform 160ms ease;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 25px;
  right: 6px;
  color: var(--cyan);
  font-size: 1.5rem;
  font-weight: 350;
}

.faq-list details[open] summary::before {
  transform: rotate(45deg);
}

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

.faq-answer {
  max-width: 840px;
  padding: 0 44px 30px;
  color: var(--muted);
}

.faq-answer p:last-child,
.faq-answer ul:last-child {
  margin-bottom: 0;
}

.faq-answer li + li {
  margin-top: 8px;
}

.contact-block {
  margin-top: 60px;
  padding: 44px 0;
  display: grid;
  grid-template-columns: 72px 1fr auto;
  align-items: center;
  gap: 26px;
  border-top: 1px solid var(--cyan);
  border-bottom: 1px solid var(--blue);
}

.contact-block svg {
  width: 52px;
  color: var(--cyan);
}

.contact-block h2 {
  margin-bottom: 6px;
  font-size: 1.6rem;
  letter-spacing: -0.035em;
}

.contact-block p {
  margin: 0;
  color: var(--muted);
}

.contact-block > a {
  color: var(--cyan);
  font-size: 1.15rem;
  font-weight: 650;
  text-underline-offset: 6px;
}

.policy-list {
  border-top: 1px solid rgba(141, 56, 255, 0.7);
}

.policy-section {
  display: grid;
  grid-template-columns: 56px minmax(210px, 0.55fr) minmax(340px, 1.45fr);
  gap: 28px;
  align-items: start;
  padding: 31px 0;
  border-bottom: 1px solid var(--line);
}

.policy-section svg {
  width: 38px;
  color: #a868ff;
}

.policy-section h2 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.policy-section p {
  margin: 0;
  color: var(--muted);
}

.policy-section p + p {
  margin-top: 12px;
}

.policy-meta {
  margin-bottom: 30px;
  color: var(--faint);
  font-size: 0.88rem;
}

[data-reveal] {
  opacity: 1;
  transform: none;
}

.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 620ms ease, transform 620ms ease;
}

.js-ready [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

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

@media (max-width: 980px) {
  .hero__inner {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 86px;
  }

  .hero__copy {
    max-width: 760px;
  }

  .hero__media {
    max-width: 860px;
    margin: -10px auto 0;
  }

  .privacy-story,
  .features-layout {
    grid-template-columns: 1fr;
  }

  .privacy-story__visual {
    min-height: 360px;
    order: 2;
  }

  .features-layout {
    gap: 48px;
  }

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

  .footer nav { order: 3; grid-column: 1 / -1; padding-bottom: 24px; }
}

@media (max-width: 760px) {
  .topbar__inner {
    min-height: 72px;
  }

  .brand {
    font-size: 1.12rem;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  .menu-button {
    display: inline-flex;
  }

  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    align-items: stretch;
    padding: 24px var(--page-pad) 30px;
    flex-direction: column;
    gap: 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.97);
  }

  .nav.is-open {
    display: flex;
  }

  .lang-switch {
    padding: 14px 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .hero__inner {
    padding: 64px 0 40px;
  }

  .hero h1 {
    font-size: clamp(3rem, 13vw, 4.4rem);
  }

  .hero__lead {
    font-size: 1.04rem;
  }

  .hero__media img {
    mask-image: linear-gradient(90deg, transparent 0, black 3%, black 97%, transparent 100%);
  }

  .section {
    padding: 86px 0;
  }

  .workflow {
    grid-template-columns: 1fr;
    gap: 70px;
  }

  .workflow__item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 0 26px;
  }

  .workflow__number {
    grid-column: 1 / -1;
  }

  .workflow__visual {
    grid-row: 2 / 5;
    height: 118px;
  }

  .duration-dial { width: 112px; height: 112px; }
  .film-stack { transform: scale(0.82); transform-origin: left center; }
  .keep-mark { width: 92px; height: 106px; }

  .privacy-story__visual::before { width: min(88vw, 350px); height: min(88vw, 350px); }
  .privacy-story__visual::after { width: min(64vw, 255px); height: min(64vw, 255px); }

  .feature-row {
    grid-template-columns: 46px 1fr;
    gap: 14px 18px;
    padding: 26px 0;
  }

  .feature-row p {
    grid-column: 2;
  }

  .closing {
    min-height: 510px;
    align-items: flex-start;
    padding-top: 84px;
  }

  .closing::after {
    inset: 44% -20% 0 15%;
    mask-image: linear-gradient(180deg, transparent 0, black 28%);
  }

  .footer__inner {
    min-height: auto;
    padding: 36px 0 26px;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer nav {
    grid-column: auto;
    padding-bottom: 0;
    flex-wrap: wrap;
  }

  .footer__contact {
    justify-self: start;
  }

  .doc-hero {
    min-height: 340px;
  }

  .doc-hero::after {
    right: 0;
    bottom: 20px;
    width: 52%;
    opacity: 0.7;
  }

  .doc-content {
    padding: 52px 0 90px;
  }

  .faq-list summary {
    padding: 24px 44px 24px 35px;
    font-size: 1.07rem;
  }

  .faq-list summary::before {
    left: 3px;
    top: 32px;
  }

  .faq-list summary::after {
    top: 21px;
  }

  .faq-answer {
    padding: 0 20px 26px 35px;
  }

  .contact-block {
    grid-template-columns: 52px 1fr;
    padding: 34px 0;
  }

  .contact-block svg { width: 40px; }
  .contact-block > a { grid-column: 2; }

  .policy-section {
    grid-template-columns: 44px 1fr;
    gap: 16px 18px;
    padding: 27px 0;
  }

  .policy-section p {
    grid-column: 2;
  }

  .policy-section > div {
    grid-column: 2;
  }
}

@media (max-width: 460px) {
  :root { --page-pad: 20px; }
  .actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .workflow__item { grid-template-columns: 98px 1fr; gap: 0 18px; }
  .duration-dial { width: 94px; height: 94px; gap: 7px; }
  .duration-dial strong { font-size: 2rem; }
  .duration-dial span { font-size: 0.86rem; }
  .footer nav { gap: 18px; }
}