:root[data-theme="light"] {
  --bg-main: #ffffff;
  --bg-soft: #f4f8fb;
  --bg-deep: #eaf4fb;
  --text-main: #0e1621;
  --text-secondary: #4e6578;
  --text-muted: #7d8b99;
  --accent: #2aabee;
  --accent-hover: #229ed9;
  --accent-soft: rgba(42, 171, 238, 0.12);
  --card-bg: rgba(255, 255, 255, 0.78);
  --card-bg-solid: #ffffff;
  --card-border: rgba(42, 171, 238, 0.18);
  --glass-bg: rgba(255, 255, 255, 0.62);
  --glass-border: rgba(255, 255, 255, 0.52);
  --success: #35c27a;
  --warning: #ffc857;
  --danger: #ff7070;
  --shadow-soft: 0 24px 80px rgba(14, 22, 33, 0.08);
  --shadow-card: 0 18px 50px rgba(14, 22, 33, 0.08);
}

:root[data-theme="dark"] {
  --bg-main: #0e1621;
  --bg-soft: #17212b;
  --bg-deep: #101923;
  --text-main: #eaf2fa;
  --text-secondary: #a8bed1;
  --text-muted: #71889c;
  --accent: #2aabee;
  --accent-hover: #46bdf4;
  --accent-soft: rgba(42, 171, 238, 0.14);
  --card-bg: rgba(31, 44, 55, 0.72);
  --card-bg-solid: #1f2c37;
  --card-border: rgba(120, 190, 255, 0.18);
  --glass-bg: rgba(31, 44, 55, 0.58);
  --glass-border: rgba(255, 255, 255, 0.1);
  --success: #42d68b;
  --warning: #ffd166;
  --danger: #ff7070;
  --shadow-soft: 0 28px 90px rgba(0, 0, 0, 0.34);
  --shadow-card: 0 20px 70px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% 8%, var(--accent-soft), transparent 28rem),
    radial-gradient(circle at 86% 18%, rgba(53, 194, 122, 0.1), transparent 26rem),
    linear-gradient(180deg, var(--bg-main), var(--bg-soft) 38%, var(--bg-main));
  color: var(--text-main);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  line-height: 1.5;
  transition: background 0.35s ease, color 0.35s ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(42, 171, 238, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 171, 238, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.34;
  background: linear-gradient(116deg, transparent 0 34%, rgba(42, 171, 238, 0.1) 34% 35%, transparent 35% 100%);
}

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--accent);
  color: #ffffff;
  transform: translateY(-140%);
}

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

.container {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
}

.section {
  padding: clamp(76px, 10vw, 150px) 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 22px;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid transparent;
  background: transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--card-border);
  background: var(--glass-bg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 156px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background:
    radial-gradient(circle at 34% 24%, rgba(255, 255, 255, 0.7), transparent 28%),
    linear-gradient(135deg, var(--accent), var(--success));
  color: #ffffff;
  font-weight: 900;
  box-shadow: 0 18px 44px rgba(42, 171, 238, 0.28);
}

.brand b,
.brand small {
  display: block;
}

.brand small {
  color: var(--text-muted);
  font-size: 12px;
}

.nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--card-bg) 70%, transparent);
}

.nav-link {
  position: relative;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 14px;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: 6px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  transition: left 0.25s ease, right 0.25s ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
  background: var(--accent-soft);
  color: var(--text-main);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link.is-active::after {
  left: 18px;
  right: 18px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-button,
.theme-toggle,
.menu-button {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--text-main);
}

.theme-toggle span {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: inset -6px -5px 0 rgba(14, 22, 33, 0.28);
}

.menu-button {
  display: none;
  gap: 5px;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
  transform: translate3d(0, 0, 0);
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.button--primary {
  border-color: transparent;
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 18px 50px rgba(42, 171, 238, 0.3);
}

.button--primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 22px 66px rgba(42, 171, 238, 0.36);
}

.button--secondary,
.button--header {
  background: var(--card-bg);
  color: var(--text-main);
}

.button--secondary:hover,
.button--header:hover {
  border-color: rgba(42, 171, 238, 0.45);
  background: var(--accent-soft);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  align-items: center;
  gap: clamp(24px, 5vw, 72px);
  padding: 120px clamp(20px, 5vw, 76px) 70px;
  overflow: hidden;
}

.hero__bg,
.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__bg {
  background:
    radial-gradient(circle at 18% 22%, rgba(42, 171, 238, 0.22), transparent 25rem),
    radial-gradient(circle at 76% 38%, rgba(53, 194, 122, 0.16), transparent 24rem),
    linear-gradient(145deg, transparent, rgba(42, 171, 238, 0.06));
}

.hero__particles {
  opacity: 0.46;
  background-image:
    radial-gradient(circle, rgba(42, 171, 238, 0.44) 0 1px, transparent 2px),
    radial-gradient(circle, rgba(53, 194, 122, 0.32) 0 1px, transparent 2px);
  background-position: 0 0, 34px 50px;
  background-size: 96px 96px, 128px 128px;
}

.hero__content,
.hero__visual {
  position: relative;
  z-index: 1;
}

.hero__eyebrow,
.eyebrow,
.section-label {
  display: inline-flex;
  width: max-content;
  max-width: 100%;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 8px 12px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 13px;
  font-weight: 800;
}

.hero__title {
  max-width: 820px;
  margin: 0;
  font-size: clamp(48px, 8vw, 104px);
  line-height: 0.94;
  letter-spacing: 0;
}

.line-wrap {
  display: block;
  overflow: hidden;
}

.line {
  display: block;
}

.hero__text,
.lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--text-secondary);
  font-size: clamp(18px, 2vw, 22px);
}

.hero__actions,
.final-cta__actions,
.vpn-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero__trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero__trust-row span {
  padding: 9px 12px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--text-secondary);
  font-size: 14px;
}

.hero__visual {
  min-height: 620px;
  perspective: 900px;
}

.hero__canvas,
.knowledge-map__canvas,
.privacy-canvas,
.vpn-canvas {
  width: 100%;
  height: 100%;
  min-height: 420px;
  display: block;
}

[data-model-kind] {
  position: absolute;
  inset: 0;
  z-index: 3;
  width: 100%;
  height: 100%;
}

[data-model-kind].is-model-loaded {
  filter: drop-shadow(0 28px 42px rgba(42, 171, 238, 0.18));
}

.hero__canvas.is-model-loaded + .hero-device {
  opacity: 0;
}

.hero-device {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(330px, 64vw);
  height: 520px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 42px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.08)),
    linear-gradient(180deg, rgba(42, 171, 238, 0.16), rgba(14, 22, 33, 0.08));
  box-shadow: var(--shadow-card), inset 0 0 0 1px rgba(255, 255, 255, 0.18);
  transform: translate(-50%, -50%) rotateY(-12deg) rotateX(8deg);
  backdrop-filter: blur(14px);
}

.hero-device::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 18px;
  width: 88px;
  height: 12px;
  border-radius: 999px;
  background: rgba(14, 22, 33, 0.22);
  transform: translateX(-50%);
}

.hero-device i {
  position: absolute;
  left: 34px;
  right: 34px;
  height: 66px;
  border-radius: 24px;
  background: rgba(42, 171, 238, 0.18);
  border: 1px solid rgba(42, 171, 238, 0.28);
}

.hero-device i:nth-child(1) {
  top: 102px;
  right: 74px;
}

.hero-device i:nth-child(2) {
  top: 206px;
  left: 78px;
  background: rgba(53, 194, 122, 0.16);
}

.hero-device i:nth-child(3) {
  top: 314px;
  right: 92px;
}

.hero-device b {
  position: absolute;
  left: 34px;
  bottom: 40px;
  font-size: 48px;
}

.floating-card {
  position: absolute;
  z-index: 6;
  min-width: 136px;
  padding: 16px 18px;
  border: 1px solid var(--card-border);
  border-radius: 22px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  font-weight: 800;
}

.floating-card small {
  color: var(--text-muted);
  font-weight: 700;
}

.floating-card--a {
  top: 13%;
  left: 4%;
}

.floating-card--b {
  right: 3%;
  top: 38%;
}

.floating-card--c {
  left: 8%;
  bottom: 13%;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head--row {
  max-width: none;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.section-head h2,
.knowledge-map__content h2,
.privacy-content h2,
.vpn-card h2,
.final-cta h2,
.page-hero h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 62px);
  line-height: 1;
  letter-spacing: 0;
}

.section-head p,
.knowledge-map__content p,
.privacy-content p,
.vpn-card p,
.final-cta p {
  max-width: 700px;
  margin: 14px 0 0;
  color: var(--text-secondary);
  font-size: 18px;
}

.quick-search {
  position: relative;
}

.quick-search::before {
  content: "";
  position: absolute;
  inset: 12% 0 auto;
  height: 210px;
  background:
    radial-gradient(ellipse at 25% 20%, rgba(42, 171, 238, 0.16), transparent 44%),
    radial-gradient(ellipse at 70% 60%, rgba(53, 194, 122, 0.12), transparent 44%);
  filter: blur(18px);
}

.search-panel {
  position: relative;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--card-border);
  border-radius: 34px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(24px);
  transform-origin: center;
}

.search-panel input {
  width: 100%;
  min-height: 68px;
  padding: 0 22px;
  border: 1px solid var(--card-border);
  border-radius: 22px;
  outline: none;
  background: var(--card-bg-solid);
  color: var(--text-main);
  font-size: clamp(16px, 2vw, 20px);
}

.search-panel input:focus {
  border-color: rgba(42, 171, 238, 0.62);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

.search-panel__filters,
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.search-panel__filters button,
.filter-row button {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--text-secondary);
}

.search-panel__filters button.is-active,
.filter-row button.is-active,
.search-panel__filters button:hover,
.filter-row button:hover {
  border-color: rgba(42, 171, 238, 0.52);
  background: var(--accent-soft);
  color: var(--text-main);
}

.search-panel__suggestions,
.suggestions {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.search-panel__suggestions a,
.suggestions a {
  padding: 14px 16px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--card-bg);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.problem-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 16px;
  min-height: 148px;
  padding: 20px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  border-radius: 28px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
  transform: translateZ(0);
}

.problem-card::before {
  content: "";
  position: absolute;
  inset: -80px auto auto calc(var(--index) * 9%);
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: radial-gradient(circle, var(--accent-soft), transparent 64%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.problem-card:hover::before {
  opacity: 1;
}

.problem-card__icon {
  position: relative;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 20px;
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.problem-card__content,
.problem-card__content b,
.problem-card__content small {
  position: relative;
  display: block;
}

.problem-card__content b {
  font-size: 20px;
  line-height: 1.15;
}

.problem-card__content small {
  margin-top: 6px;
  color: var(--text-secondary);
}

.problem-card__meta {
  position: relative;
  display: grid;
  gap: 6px;
  color: var(--text-muted);
  font-size: 13px;
  text-align: right;
}

.problem-card__meta em {
  font-style: normal;
  color: var(--text-main);
}

.problem-card__arrow {
  position: relative;
  color: var(--accent-hover);
  font-size: 24px;
}

.knowledge-map {
  position: relative;
  min-height: 100svh;
  padding: 90px 0;
}

.knowledge-map__layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  align-items: center;
  gap: clamp(24px, 5vw, 70px);
  min-height: calc(100svh - 180px);
}

.knowledge-map__visual {
  position: relative;
  min-height: 620px;
  border: 1px solid var(--card-border);
  border-radius: 38px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(42, 171, 238, 0.16), transparent 34%),
    var(--card-bg);
  box-shadow: var(--shadow-soft);
}

.knowledge-nodes {
  position: absolute;
  inset: 0;
}

.knowledge-node {
  --angle: calc(var(--i) * 45deg);
  position: absolute;
  left: calc(50% + cos(var(--angle)) * 35%);
  top: calc(50% + sin(var(--angle)) * 33%);
  display: grid;
  place-items: center;
  width: 132px;
  height: 132px;
  padding: 16px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  text-align: center;
  transform: translate(-50%, -50%);
  backdrop-filter: blur(16px);
}

.knowledge-node small {
  color: var(--text-muted);
  font-size: 12px;
}

.knowledge-node--main {
  border-color: rgba(42, 171, 238, 0.48);
  background: color-mix(in srgb, var(--accent-soft) 60%, var(--glass-bg));
}

.work-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.work-step {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--card-border);
  border-radius: 30px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.work-step span {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 42px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 900;
}

.work-step b {
  display: block;
  font-size: 24px;
  line-height: 1.1;
}

.work-step p {
  color: var(--text-secondary);
}

.trust-section {
  overflow: visible;
}

.trust-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  width: 100%;
  min-height: auto;
}

.trust-card {
  width: auto;
  min-height: 300px;
  padding: clamp(22px, 2vw, 32px);
  border: 1px solid var(--card-border);
  border-radius: 32px;
  background:
    radial-gradient(circle at 85% 12%, var(--accent-soft), transparent 44%),
    var(--card-bg);
  box-shadow: var(--shadow-card);
}

@media (max-width: 1120px) {
  .trust-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-card {
    width: auto;
    min-height: 240px;
    padding: 24px;
    border-radius: 26px;
  }

  .trust-card h3 {
    margin-top: 42px;
    font-size: 24px;
  }
}

.trust-card svg {
  width: 36px;
  height: 36px;
  color: var(--accent-hover);
}

.trust-card h3 {
  margin: 62px 0 12px;
  font-size: 28px;
  line-height: 1.1;
}

.trust-card p {
  color: var(--text-secondary);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.category-card {
  position: relative;
  display: grid;
  min-height: 245px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  border-radius: 30px;
  background:
    linear-gradient(130deg, var(--card-bg), color-mix(in srgb, var(--accent-soft) 46%, var(--card-bg))),
    var(--card-bg);
  box-shadow: var(--shadow-card);
  transform-style: preserve-3d;
}

.category-card svg {
  width: 36px;
  height: 36px;
  color: var(--accent-hover);
}

.category-card b {
  align-self: end;
  font-size: 22px;
  line-height: 1.1;
}

.category-card span,
.category-card small {
  color: var(--text-secondary);
}

.category-card em {
  position: absolute;
  top: 22px;
  right: 22px;
  opacity: 0;
  color: var(--accent-hover);
  font-style: normal;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.category-card:hover em {
  opacity: 1;
  transform: translate(3px, -3px);
}

.privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  align-items: center;
  gap: clamp(24px, 5vw, 72px);
}

.privacy-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.privacy-list li {
  padding: 16px 18px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--card-bg);
}

.privacy-visual,
.vpn-card__visual {
  position: relative;
  min-height: 540px;
  border: 1px solid var(--card-border);
  border-radius: 38px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 44%, rgba(42, 171, 238, 0.2), transparent 38%),
    var(--card-bg);
  box-shadow: var(--shadow-soft);
}

.privacy-layer {
  position: absolute;
  left: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 210px;
  min-height: 46px;
  padding: 8px 16px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  text-align: center;
  transform: translateX(-50%);
}

.privacy-layer--settings {
  top: 20%;
}

.privacy-layer--permissions {
  top: 47%;
}

.privacy-layer--connection {
  top: 74%;
}

.vpn-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(360px, 0.82fr);
  gap: 34px;
  padding: clamp(26px, 5vw, 54px);
  overflow: hidden;
  border: 1px solid rgba(42, 171, 238, 0.32);
  border-radius: 42px;
  background:
    radial-gradient(circle at 74% 24%, rgba(42, 171, 238, 0.22), transparent 32%),
    linear-gradient(135deg, var(--glass-bg), var(--card-bg));
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(20px);
}

.vpn-card__disclaimer,
.disclosure {
  color: var(--text-muted);
  font-size: 14px;
}

.latest-updates .section-link {
  color: var(--accent-hover);
  font-weight: 900;
}

.updates-list {
  display: grid;
  gap: 10px;
}

.update-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 20px 22px;
  border: 1px solid var(--card-border);
  border-radius: 22px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.update-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 999px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.update-item:hover::before {
  opacity: 1;
}

.update-item span {
  grid-column: 1;
  color: var(--text-secondary);
}

.update-item em {
  grid-row: 1 / span 2;
  grid-column: 2;
  color: var(--accent-hover);
  font-style: normal;
}

.final-cta__card {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(34px, 7vw, 82px);
  border: 1px solid var(--card-border);
  border-radius: 44px;
  background:
    radial-gradient(circle at 18% 18%, var(--accent-soft), transparent 34%),
    radial-gradient(circle at 86% 80%, rgba(53, 194, 122, 0.13), transparent 32%),
    var(--card-bg);
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.final-cta__actions {
  justify-content: center;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(240px, 1.3fr) repeat(4, minmax(140px, 1fr));
  gap: 24px;
  padding: 52px clamp(20px, 5vw, 76px);
  border-top: 1px solid var(--card-border);
  background: var(--bg-deep);
}

.footer__col {
  display: grid;
  align-content: start;
  gap: 10px;
}

.footer__col p,
.footer__col a {
  color: var(--text-secondary);
}

.footer__credits {
  max-width: 280px;
  color: var(--text-muted);
  font-size: 12px;
}

.footer__col a:hover {
  color: var(--accent-hover);
}

.page-transition,
.theme-wipe {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0;
}

.page-transition {
  background: rgba(42, 171, 238, 0.14);
  backdrop-filter: blur(10px);
}

.page-transition__glow {
  position: absolute;
  inset: 15%;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(42, 171, 238, 0.38), transparent 62%);
}

.page-transition i {
  position: absolute;
  width: 120px;
  height: 42px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(42, 171, 238, 0.24);
}

.page-transition i:nth-child(2) {
  left: 14%;
  top: 34%;
}

.page-transition i:nth-child(3) {
  right: 20%;
  top: 48%;
}

.page-transition i:nth-child(4) {
  left: 42%;
  bottom: 22%;
}

.theme-wipe {
  width: 200vmax;
  height: 200vmax;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  background: var(--accent);
  transform: translate(-50%, -50%) scale(0);
  transform-origin: center;
}

.cursor,
.cursor-follower {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  pointer-events: none;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.cursor {
  width: 7px;
  height: 7px;
  background: var(--accent);
}

.cursor-follower {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(42, 171, 238, 0.55);
}

.read-progress {
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  z-index: 200;
  height: 3px;
}

.read-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--success));
}

.page-hero {
  padding-top: 150px;
}

.catalog-grid,
.article-layout {
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: 24px;
  align-items: start;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.article-grid.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.article-card {
  display: block;
  padding: 22px;
  border: 1px solid var(--card-border);
  border-radius: 26px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
  transform-style: preserve-3d;
}

.article-card h3 {
  margin: 18px 0 10px;
  font-size: 22px;
  line-height: 1.15;
}

.article-card p,
.article-card footer {
  color: var(--text-secondary);
}

.article-card footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.chip {
  display: inline-flex;
  margin: 0 6px 6px 0;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 800;
}

.stack-visual,
.toc,
.article-side > * {
  position: sticky;
  top: 98px;
  padding: 22px;
  border: 1px solid var(--card-border);
  border-radius: 26px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.stack-visual {
  min-height: 380px;
}

.stack-visual span {
  position: absolute;
  left: 38px;
  right: 38px;
  height: 76px;
  border-radius: 22px;
  background: var(--accent-soft);
  border: 1px solid var(--card-border);
}

.stack-visual span:nth-child(1) {
  top: 78px;
}

.stack-visual span:nth-child(2) {
  top: 142px;
  transform: rotate(-5deg);
}

.stack-visual span:nth-child(3) {
  top: 206px;
  transform: rotate(5deg);
}

.stack-visual b {
  position: absolute;
  left: 24px;
  bottom: 24px;
}

.empty-state {
  margin-top: 20px;
  padding: 24px;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  background: var(--card-bg);
}

.article-shell {
  padding: 140px 0 90px;
}

.article-intro {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto 40px;
}

.article-intro h1 {
  margin: 12px 0 0;
  font-size: clamp(40px, 6vw, 78px);
  line-height: 0.98;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--text-muted);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
}

.meta-grid span {
  padding: 12px 14px;
  border: 1px solid var(--card-border);
  border-radius: 16px;
  background: var(--card-bg);
}

.article-layout {
  width: min(1220px, calc(100% - 40px));
  margin: 0 auto;
  grid-template-columns: 230px minmax(0, 1fr) 230px;
}

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

.toc a {
  color: var(--text-secondary);
}

.toc a:hover {
  color: var(--accent-hover);
}

.article-content {
  display: grid;
  gap: 24px;
}

.article-content section,
.prose .container {
  padding: 28px;
  border: 1px solid var(--card-border);
  border-radius: 28px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.article-content h2 {
  margin: 0 0 16px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.1;
}

.article-content li + li {
  margin-top: 8px;
}

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

.checklist label,
.test-grid label {
  display: flex;
  gap: 10px;
  align-items: center;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid var(--card-border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--card-bg) 78%, var(--accent-soft));
}

.privacy-hint,
.vpn-inline {
  background:
    radial-gradient(circle at 100% 0, var(--accent-soft), transparent 42%),
    var(--card-bg) !important;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 0;
}

.step span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 900;
}

.warning {
  border-color: rgba(255, 200, 87, 0.4) !important;
}

details {
  padding: 16px 0;
  border-top: 1px solid var(--card-border);
}

summary {
  cursor: pointer;
  font-weight: 900;
}

.device-mock {
  display: grid;
  place-items: center;
  min-height: 310px;
}

.device-mock span {
  width: 130px;
  height: 220px;
  border: 1px solid var(--card-border);
  border-radius: 26px;
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16);
}

.seed {
  margin-top: 18px;
}

.seed button {
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
}

.seed:not(.is-visible) {
  opacity: 0.6;
}

.articles-hero {
  position: relative;
  min-height: 78svh;
  padding: 138px 0 72px;
  overflow: hidden;
}

.articles-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 26%, rgba(42, 171, 238, 0.2), transparent 24rem),
    radial-gradient(circle at 78% 18%, rgba(53, 194, 122, 0.12), transparent 23rem);
}

.articles-hero__layout,
.article-hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.82fr);
  gap: clamp(28px, 5vw, 74px);
  align-items: center;
}

.articles-hero__title {
  margin: 0;
  font-size: clamp(48px, 7vw, 92px);
  line-height: 0.95;
}

.articles-hero__text {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--text-secondary);
  font-size: clamp(18px, 2vw, 22px);
}

.articles-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 640px;
  margin-top: 30px;
}

.stat-card {
  min-height: 110px;
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.stat-card strong,
.stat-card span {
  display: block;
}

.stat-card strong {
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1;
}

.stat-card span {
  margin-top: 8px;
  color: var(--text-secondary);
}

.articles-hero__visual {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--card-border);
  border-radius: 38px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 44%, rgba(42, 171, 238, 0.2), transparent 38%),
    var(--card-bg);
  box-shadow: var(--shadow-soft);
}

.articles-hero__canvas,
.article-device-canvas,
.article-visual-block canvas,
.privacy-inline-card canvas {
  width: 100%;
  height: 100%;
  min-height: 360px;
  display: block;
}

.article-device-canvas.is-model-loaded,
.article-visual-block canvas.is-model-loaded,
.articles-hero__canvas.is-model-loaded,
.privacy-canvas.is-model-loaded,
.vpn-canvas.is-model-loaded {
  filter: drop-shadow(0 24px 36px rgba(14, 22, 33, 0.16));
}

.library-orbit span {
  position: absolute;
  z-index: 6;
  min-width: 110px;
  padding: 12px 14px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  text-align: center;
  backdrop-filter: blur(14px);
}

.library-orbit span:nth-child(1) { left: 10%; top: 18%; }
.library-orbit span:nth-child(2) { right: 8%; top: 32%; }
.library-orbit span:nth-child(3) { left: 16%; bottom: 16%; }
.library-orbit span:nth-child(4) { right: 18%; bottom: 12%; }

.articles-control {
  position: sticky;
  top: 76px;
  z-index: 50;
  padding: 12px 0;
}

.articles-control__panel {
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: 30px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(22px);
}

.articles-search {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.articles-search__input {
  min-height: 62px;
  padding: 0 20px;
  border: 1px solid var(--card-border);
  border-radius: 22px;
  outline: none;
  background: var(--card-bg-solid);
  color: var(--text-main);
  font-size: 18px;
}

.articles-search__button {
  min-height: 62px;
  padding: 0 24px;
  border: 0;
  border-radius: 22px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 900;
}

.articles-search__suggestions {
  grid-column: 1 / -1;
  display: grid;
  gap: 8px;
}

.articles-filters,
.topic-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.filter-pill,
.topic-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--text-secondary);
  line-height: 1;
  text-align: center;
}

.filter-pill.is-active,
.topic-chip:hover {
  border-color: rgba(42, 171, 238, 0.55);
  background: var(--accent-soft);
  color: var(--text-main);
}

.featured-topics {
  padding: 46px 0 70px;
}

.featured-topics__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.featured-topics__head h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
}

.articles-main {
  padding: 34px 0 100px;
}

.articles-main__layout {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.articles-sidebar {
  position: sticky;
  top: 170px;
  display: grid;
  gap: 14px;
}

.sidebar-block,
.sidebar-card {
  padding: 20px;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.sidebar-block h3,
.sidebar-card h3 {
  margin: 0 0 14px;
  font-size: 20px;
}

.sidebar-block button,
.sidebar-card button,
.sidebar-block label {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 42px;
  gap: 10px;
  margin-top: 8px;
  padding: 10px 12px;
  border: 1px solid var(--card-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--card-bg) 78%, transparent);
  color: var(--text-secondary);
  text-align: left;
}

.sidebar-block button.is-active,
.sidebar-block label.is-active {
  border-color: rgba(42, 171, 238, 0.55);
  background: var(--accent-soft);
  color: var(--text-main);
}

.sidebar-block--privacy,
.sidebar-card--privacy,
.article-card--privacy {
  background:
    radial-gradient(circle at 100% 0, rgba(42, 171, 238, 0.18), transparent 48%),
    var(--card-bg);
}

.results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 18px 20px;
  border: 1px solid var(--card-border);
  border-radius: 26px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.results-toolbar h2 {
  margin: 0;
  font-size: 30px;
}

.results-toolbar p {
  margin: 4px 0 0;
  color: var(--text-secondary);
}

.results-toolbar__actions {
  display: flex;
  gap: 10px;
}

.mobile-filter-button,
.sort-select {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--card-border);
  border-radius: 14px;
  background: var(--card-bg-solid);
  color: var(--text-main);
}

.mobile-filter-button {
  display: none;
}

.article-card__top,
.article-card__bottom,
.article-card__tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.article-card__top {
  justify-content: space-between;
}

.article-card__category,
.article-card__status {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 900;
}

.article-card__title {
  margin: 18px 0 10px;
  font-size: 22px;
  line-height: 1.12;
}

.article-card__excerpt {
  color: var(--text-secondary);
}

.article-card__bottom {
  justify-content: space-between;
  margin-top: 18px;
  color: var(--text-muted);
}

.article-card__arrow {
  color: var(--accent-hover);
  font-size: 22px;
}

.article-card--privacy {
  min-height: 280px;
}

.privacy-card__label,
.privacy-seed__label {
  display: inline-flex;
  width: max-content;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 900;
}

.privacy-card__disclaimer {
  color: var(--text-muted);
  font-size: 13px;
}

.popular-articles-block {
  padding-top: 56px;
}

.popular-articles-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.popular-article-mini {
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: 20px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.load-more-row {
  display: flex;
  justify-content: center;
  margin-top: 26px;
}

.article-breadcrumbs {
  width: min(1180px, calc(100% - 40px));
  margin: 112px auto 18px;
}

.article-hero {
  padding: 0 0 54px;
}

.article-hero__category {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 900;
}

.article-hero__title {
  margin: 0;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 0.98;
}

.article-hero__lead {
  max-width: 780px;
  margin: 22px 0 0;
  color: var(--text-secondary);
  font-size: clamp(18px, 2vw, 22px);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.article-meta span {
  padding: 10px 12px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--text-secondary);
}

.article-meta .verified {
  color: var(--success);
}

.article-hero__visual {
  position: relative;
  min-height: 430px;
  border: 1px solid var(--card-border);
  border-radius: 36px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgba(42, 171, 238, 0.22), transparent 42%),
    var(--card-bg);
  box-shadow: var(--shadow-soft);
}

.article-device-poster {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  place-items: center;
  width: 210px;
  height: 320px;
  border: 1px solid var(--card-border);
  border-radius: 34px;
  background: var(--glass-bg);
  transform: translate(-50%, -50%) rotateY(-10deg);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
}

.short-answer,
.quick-checklist,
.article-main {
  padding: 34px 0;
}

.short-answer__card,
.quick-checklist__card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--card-border);
  border-radius: 32px;
  background: var(--card-bg);
  box-shadow: var(--shadow-soft);
}

.short-answer__icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(53, 194, 122, 0.16);
  color: var(--success);
  font-weight: 900;
}

.short-answer h2,
.quick-checklist h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 44px);
}

.quick-checklist__card {
  display: block;
}

.checklist {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.checklist-item {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 58px;
  gap: 12px;
  margin-top: 10px;
  padding: 14px 16px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--card-bg-solid);
  color: var(--text-main);
  text-align: left;
}

.checklist-item__check {
  width: 22px;
  height: 22px;
  border: 1px solid var(--card-border);
  border-radius: 50%;
}

.checklist-item.is-done {
  color: var(--text-muted);
}

.checklist-item.is-done .checklist-item__check {
  border-color: transparent;
  background: var(--success);
  box-shadow: inset 0 0 0 6px color-mix(in srgb, var(--success) 30%, white);
}

.checklist-privacy-hint {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid rgba(42, 171, 238, 0.32);
  border-radius: 22px;
  background: var(--accent-soft);
}

.article-body {
  display: grid;
  gap: 24px;
}

.article-section,
.article-note,
.article-visual-block,
.privacy-inline-card,
.author-sources {
  padding: 28px;
  border: 1px solid var(--card-border);
  border-radius: 28px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.article-section h2,
.article-note h2,
.article-visual-block h3 {
  margin-top: 0;
}

.article-toc,
.article-sidebar {
  position: sticky;
  top: 120px;
}

.article-toc {
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
}

.article-toc__title {
  font-weight: 900;
}

.toc-link {
  padding: 9px 10px;
  border-radius: 12px;
  color: var(--text-secondary);
}

.toc-link.is-active,
.toc-link:hover {
  background: var(--accent-soft);
  color: var(--text-main);
}

.step-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  margin-top: 12px;
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: 20px;
  background: var(--card-bg-solid);
}

.step-card__number {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 900;
}

.step-card h3 {
  margin: 0 0 6px;
}

.platform-tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.platform-tab {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--card-bg-solid);
  color: var(--text-secondary);
}

.platform-tab.is-active {
  background: var(--accent-soft);
  color: var(--text-main);
}

.platform-panel {
  display: none;
}

.platform-panel.is-active {
  display: block;
}

.article-note--info { border-color: rgba(42, 171, 238, 0.32); }
.article-note--warning { border-color: rgba(255, 200, 87, 0.45); }
.article-note--success { border-color: rgba(53, 194, 122, 0.38); }

.article-visual-block,
.privacy-inline-card {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(240px, 0.72fr);
  gap: 22px;
  align-items: center;
}

.article-visual-block__canvas,
.privacy-inline-card__visual {
  position: relative;
  min-height: 260px;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  overflow: hidden;
  background: var(--accent-soft);
}

.faq-answer {
  height: 0;
  opacity: 0;
  overflow: hidden;
}

.faq-item.is-open .faq-answer {
  height: auto;
  opacity: 1;
}

.faq-question {
  width: 100%;
  min-height: 52px;
  border: 0;
  border-top: 1px solid var(--card-border);
  background: transparent;
  color: var(--text-main);
  font-weight: 900;
  text-align: left;
}

.author-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.article-sidebar {
  display: grid;
  gap: 14px;
}

.sidebar-card a,
.sidebar-card button {
  display: block;
  margin-top: 10px;
}

.privacy-seed {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  display: none;
  width: min(340px, calc(100vw - 36px));
}

.privacy-seed.is-visible {
  display: block;
}

.privacy-seed__button,
.privacy-seed__card {
  width: 100%;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-soft);
  color: var(--text-main);
  backdrop-filter: blur(18px);
}

.privacy-seed__button {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 58px;
  padding: 12px 16px;
}

.privacy-seed__orb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 28px rgba(42, 171, 238, 0.55);
}

.privacy-seed__card {
  margin-top: 10px;
  padding: 18px;
}

.article-scene {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  overflow: hidden;
}

.article-scene--inline {
  inset: 0;
}

.scene-phone {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  place-items: center;
  width: 178px;
  height: 286px;
  border: 1px solid var(--card-border);
  border-radius: 32px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  transform: translate(-50%, -50%) rotateY(-12deg);
  backdrop-filter: blur(16px);
}

.scene-phone span {
  width: 112px;
  height: 64px;
  border-radius: 22px;
  background: var(--accent-soft);
}

.scene-code {
  position: absolute;
  left: 50%;
  top: 22%;
  display: flex;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--card-border);
  border-radius: 20px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  transform: translateX(-50%);
}

.scene-code span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 36px;
  border-radius: 10px;
  background: var(--card-bg-solid);
  color: var(--accent-hover);
  font-weight: 900;
}

.scene-signal {
  position: absolute;
  left: 18%;
  right: 18%;
  top: 48%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform-origin: left center;
}

.scene-signal i,
.scene-call-pulse,
.scene-sync-line {
  position: absolute;
  border-radius: 999px;
}

.scene-signal i {
  top: -5px;
  width: 12px;
  height: 12px;
  background: var(--accent);
  box-shadow: 0 0 24px rgba(42, 171, 238, 0.55);
}

.scene-node {
  position: absolute;
  padding: 10px 12px;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  color: var(--text-secondary);
  font-weight: 900;
}

.scene-node--cloud { left: 10%; top: 40%; }
.scene-node--device { right: 8%; top: 55%; }
.scene-node--error { right: 10%; bottom: 14%; }

.scene-message-queue {
  position: absolute;
  inset: 18% 12%;
}

.scene-message-queue span,
.scene-pipeline span,
.scene-layers span,
.scene-route {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 104px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
}

.scene-message-queue span {
  left: calc(var(--i) * 12%);
  top: calc(var(--i) * 17%);
}

.scene-chat-core,
.scene-shield-core,
.scene-bell {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  place-items: center;
  width: 130px;
  height: 130px;
  border-radius: 34px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  box-shadow: 0 24px 90px rgba(42, 171, 238, 0.25);
  transform: translate(-50%, -50%);
  font-weight: 900;
}

.scene-sync-line {
  left: 14%;
  right: 14%;
  top: 56%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--success), var(--accent), transparent);
}

.scene-pipeline {
  position: absolute;
  inset: 0;
}

.scene-pipeline span {
  left: calc(10% + var(--i) * 21%);
  top: calc(36% + (var(--i) % 2) * 18%);
}

.scene-media-file {
  position: absolute;
  left: 12%;
  top: 18%;
  display: grid;
  place-items: center;
  width: 82px;
  height: 102px;
  border: 1px solid rgba(42, 171, 238, 0.45);
  border-radius: 22px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-weight: 900;
}

.scene-layers span {
  left: calc(14% + var(--i) * 16%);
  top: calc(62% - var(--i) * 10%);
}

.scene-bell {
  font-size: 42px;
}

.scene-call-pulse {
  left: 50%;
  top: 50%;
  width: 210px;
  height: 210px;
  border: 1px solid rgba(42, 171, 238, 0.45);
  transform: translate(-50%, -50%);
}

.scene-route--wifi { left: 10%; top: 20%; }
.scene-route--mobile { right: 8%; top: 26%; }
.scene-route--work { left: 16%; bottom: 18%; }
.scene-route--vpn { right: 12%; bottom: 16%; border-color: rgba(53, 194, 122, 0.45); color: var(--success); }

.article-page--login_flow .article-hero__visual,
.article-page--login_flow .article-visual-block__canvas {
  background:
    radial-gradient(circle at 54% 42%, rgba(42, 171, 238, 0.26), transparent 38%),
    var(--card-bg);
}

.article-page--media_pipeline .article-hero__visual,
.article-page--media_pipeline .article-visual-block__canvas {
  background:
    radial-gradient(circle at 28% 22%, rgba(255, 200, 87, 0.16), transparent 34%),
    radial-gradient(circle at 78% 62%, rgba(42, 171, 238, 0.16), transparent 38%),
    var(--card-bg);
}

.article-page--notification .article-hero__visual,
.article-page--notification .article-visual-block__canvas {
  background:
    radial-gradient(circle at 50% 46%, rgba(42, 171, 238, 0.24), transparent 34%),
    var(--card-bg);
}

.article-page--privacy_network .article-hero__visual,
.article-page--privacy_network .article-visual-block__canvas {
  background:
    radial-gradient(circle at 52% 48%, rgba(53, 194, 122, 0.18), transparent 36%),
    radial-gradient(circle at 22% 18%, rgba(42, 171, 238, 0.15), transparent 34%),
    var(--card-bg);
}

.support-template pre {
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--bg-deep);
  color: var(--text-main);
  white-space: pre-wrap;
}

.source-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--card-border);
}

.test-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.test-result {
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  background: var(--card-bg);
}

@media (max-width: 1120px) {
  .nav {
    display: none;
  }

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

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

  .site-header.is-open .nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 82px;
    display: grid;
    border-radius: 24px;
    padding: 12px;
    background: var(--glass-bg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
  }

  .hero,
  .privacy-layout,
  .vpn-card,
  .article-visual-block,
  .privacy-inline-card {
    grid-template-columns: 1fr;
  }

  .knowledge-map__layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 110px;
  }

  .hero__visual {
    min-height: 480px;
  }

  .hero,
  .articles-hero__layout,
  .article-hero__layout {
    grid-template-columns: minmax(0, 0.86fr) minmax(260px, 0.58fr);
    gap: 18px;
  }

  .hero {
    min-height: 100svh;
    padding: 106px 20px 42px;
  }

  .hero__title {
    font-size: clamp(42px, 7.4vw, 68px);
    max-width: 620px;
  }

  .hero__text,
  .articles-hero__text,
  .article-hero__lead {
    font-size: clamp(16px, 2vw, 19px);
  }

  .hero__actions,
  .hero__trust-row {
    margin-top: 20px;
  }

  .hero__visual,
  .articles-hero__visual,
  .article-hero__visual {
    min-height: 430px;
  }

  .hero__canvas,
  .articles-hero__canvas,
  .article-device-canvas {
    min-height: 390px;
  }

  .floating-card {
    min-width: 116px;
    padding: 12px 14px;
    border-radius: 18px;
    font-size: 13px;
    background: color-mix(in srgb, var(--glass-bg) 76%, transparent);
  }

  .floating-card--a { top: 14%; left: 2%; }
  .floating-card--b { top: 40%; right: 2%; }
  .floating-card--c { left: 10%; bottom: 8%; }

  .articles-hero {
    min-height: 100svh;
    padding: 118px 0 48px;
  }

  .articles-hero__title,
  .article-hero__title {
    font-size: clamp(42px, 6.7vw, 64px);
  }

  .articles-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .work-steps,
  .category-grid,
  .article-grid,
  .article-grid.compact,
  .test-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-layout,
  .catalog-grid,
  .articles-main__layout {
    grid-template-columns: 1fr;
  }

  .toc,
  .article-toc,
  .article-sidebar,
  .articles-sidebar,
  .article-side > *,
  .stack-visual {
    position: relative;
    top: 0;
  }

  .articles-sidebar {
    display: none;
  }

  .articles-sidebar.is-open {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: 14px;
    top: auto;
    z-index: 120;
    display: grid;
    max-height: min(78svh, 680px);
    overflow: auto;
    padding: 14px;
    border: 1px solid var(--card-border);
    border-radius: 28px;
    background: var(--glass-bg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(22px);
  }

  .mobile-filter-button {
    display: inline-flex;
    align-items: center;
  }

  .article-side {
    display: none;
  }

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

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    min-height: 68px;
    padding: 10px 14px;
  }

  .brand small,
  .button--header,
  .icon-button {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 98px 14px 54px;
    gap: 18px;
  }

  .articles-hero__layout,
  .article-hero__layout {
    grid-template-columns: 1fr;
  }

  .hero__title {
    font-size: clamp(40px, 14vw, 58px);
  }

  .hero__visual {
    min-height: 360px;
  }

  .articles-hero {
    min-height: auto;
    padding: 100px 0 50px;
  }

  .articles-hero__title,
  .article-hero__title {
    font-size: clamp(40px, 13vw, 58px);
  }

  .articles-hero__stats,
  .author-grid,
  .popular-articles-row {
    grid-template-columns: 1fr;
  }

  .articles-control {
    top: 68px;
  }

  .articles-search {
    grid-template-columns: 1fr;
  }

  .articles-search__button {
    width: 100%;
  }

  .hero-device {
    height: 340px;
    border-radius: 32px;
  }

  .floating-card {
    min-width: 112px;
    padding: 12px;
    font-size: 13px;
  }

  .problem-grid,
  .work-steps,
  .category-grid,
  .article-grid,
  .article-grid.compact,
  .meta-grid,
  .test-grid,
  .articles-hero__stats {
    grid-template-columns: 1fr;
  }

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

  .problem-card__meta,
  .problem-card__arrow {
    grid-column: 2;
    text-align: left;
  }

  .knowledge-map,
  .how-it-works,
  .privacy-section {
    min-height: auto;
  }

  .knowledge-map__visual,
  .privacy-visual,
  .vpn-card__visual,
  .articles-hero__visual,
  .article-hero__visual {
    min-height: 360px;
  }

  .knowledge-node {
    width: 102px;
    height: 102px;
    font-size: 13px;
  }

  .trust-cards {
    width: auto;
    display: grid;
  }

  .trust-card {
    width: auto;
    min-height: 250px;
  }

  .update-item {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .results-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .results-toolbar__actions {
    flex-direction: column;
  }

  .article-breadcrumbs {
    margin-top: 88px;
  }

  .short-answer__card {
    grid-template-columns: 1fr;
  }

  .privacy-seed {
    right: 14px;
    bottom: 14px;
  }

  .cursor,
  .cursor-follower {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}