:root {
  --color-bg: #0b1118;
  --color-section: #101010;
  --color-card: #181818;
  --color-raised: #222222;
  --color-text: #f3f7fa;
  --color-text-soft: #b8c3cf;
  --color-text-muted: #8795a5;
  --color-accent: #ff4a24;
  --color-accent-hover: #ff6847;
  --color-accent-active: #d93618;
  --color-success: #38c976;
  --color-warning: #f2b84b;
  --color-error: #ee6262;
  --color-info: #5aa9f8;
  --color-border: rgba(210, 210, 210, 0.18);
  --color-divider: rgba(210, 210, 210, 0.10);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
  --container: 1240px;
  --header-height: 76px;
}

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

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

body {
  margin: 0;
  min-width: 320px;
  background-color: #05080c;
  background-image: url("../assets/backgrounds/klamot-black-texture-gradient.png");
  background-position: center top;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--color-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

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

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

button {
  font: inherit;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--color-text);
  color: var(--color-bg);
  font-weight: 700;
}

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

.container {
  width: min(calc(100% - 64px), var(--container));
  margin-inline: auto;
}

.narrow {
  max-width: 900px;
}

.section {
  padding-block: 96px;
}

.section-alt {
  background: rgba(8, 8, 8, 0.52);
  backdrop-filter: blur(2px);
}

.center {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(93, 117, 139, 0.24);
  background: rgba(4, 9, 14, 0.84);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
  font-size: 18px;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.main-navigation {
  display: flex;
  align-items: center;
  gap: 24px;
}

.main-navigation > a {
  color: var(--color-text-soft);
  font-weight: 600;
  text-decoration: none;
}

.main-navigation > a:hover {
  color: var(--color-text);
}

.main-navigation .nav-support-link {
  color: var(--color-text-muted);
  font-size: 14px;
}

.main-navigation .nav-support-link:hover {
  color: var(--color-accent);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 11px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-card);
  color: var(--color-text);
}

.menu-toggle span[aria-hidden="true"] {
  display: block;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  background: currentColor;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button[aria-disabled="true"],
.button.is-disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.button[aria-disabled="true"]:hover,
.button.is-disabled:hover {
  transform: none;
}

.button-primary {
  background: var(--color-accent);
  color: #061210;
}

.button-primary:hover {
  background: var(--color-accent-hover);
}

.button-primary:active {
  background: var(--color-accent-active);
}

.button-secondary {
  border-color: var(--color-border);
  background: transparent;
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: rgba(255, 74, 36, 0.55);
  background: rgba(32, 199, 183, 0.10);
}

.button-small {
  min-height: 42px;
  padding: 9px 16px;
  font-size: 14px;
}

.hero {
  position: relative;
  overflow: hidden;
  background: transparent;
}

.hero-grid {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(460px, 0.98fr);
  align-items: center;
  gap: 72px;
}

.hero-copy h1 {
  max-width: 760px;
  margin: 12px 0 24px;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.lead {
  max-width: 700px;
  margin: 0;
  color: var(--color-text-soft);
  font-size: clamp(18px, 2vw, 21px);
}

.free-badge {
  display: inline-flex;
  margin: 26px 0 0;
  padding: 9px 14px;
  border: 1px solid rgba(255, 74, 36, 0.52);
  border-radius: 999px;
  background: rgba(255, 74, 36, 0.11);
  color: #ff967f;
  font-weight: 750;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.legal-note {
  max-width: 690px;
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--color-warning);
  color: var(--color-text-soft);
  font-size: 14px;
}

.hero-visual {
  margin: 0;
  padding: 18px;
  border: 1px solid rgba(210, 210, 210, 0.20);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(31, 31, 31, 0.91), rgba(10, 10, 10, 0.91));
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.46),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
}

.hero-visual img {
  border-radius: 12px;
}

.hero-visual figcaption {
  margin-top: 12px;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.quick-facts {
  border-block: 1px solid var(--color-divider);
  background: rgba(8, 8, 8, 0.64);
  backdrop-filter: blur(2px);
}

.fact-list {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-block: 16px;
}

.fact-list span,
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(184, 195, 207, 0.05);
  color: var(--color-text-soft);
  font-size: 13px;
  font-weight: 700;
}

.tag-demo {
  border-color: rgba(242, 184, 75, 0.38);
  background: rgba(242, 184, 75, 0.10);
  color: #ffd782;
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-heading h2 {
  margin: 8px 0 14px;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.section-heading p:not(.eyebrow) {
  margin: 0;
  color: var(--color-text-soft);
  font-size: 18px;
}

.feature-grid,
.security-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.card {
  border: 1px solid rgba(210, 210, 210, 0.18);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(29, 29, 29, 0.90), rgba(9, 9, 9, 0.90));
  box-shadow:
    0 18px 46px rgba(0, 0, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(9px);
}

.feature-card {
  min-height: 260px;
  padding: 26px;
  transition: transform 180ms ease, border-color 180ms ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 74, 36, 0.55);
}

.feature-card img {
  margin-bottom: 24px;
  filter: hue-rotate(200deg) saturate(1.25) brightness(1.08);
}

.feature-card h3,
.security-grid h3 {
  margin: 0 0 10px;
  font-size: 21px;
  line-height: 1.28;
}

.feature-card p,
.security-grid p {
  margin: 0;
  color: var(--color-text-soft);
}

.feature-card .tag {
  margin-top: 18px;
}

.screens-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.screenshot-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(210, 210, 210, 0.18);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(29, 29, 29, 0.90), rgba(9, 9, 9, 0.90));
  box-shadow:
    0 18px 46px rgba(0, 0, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(9px);
}

.screenshot-card figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  font-weight: 750;
}

.screenshot-card figcaption span {
  color: var(--color-accent);
  font-size: 12px;
}

.download-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(310px, 0.65fr);
  gap: 24px;
}

.release-card,
.compact-card {
  padding: 28px;
}

.download-side {
  display: grid;
  gap: 24px;
}

.card-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.card-title-row h3 {
  margin: 0;
  font-size: 24px;
}

.release-data {
  margin: 0;
  border-top: 1px solid var(--color-divider);
}

.release-data div {
  display: grid;
  grid-template-columns: minmax(150px, 0.42fr) minmax(0, 0.58fr);
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-divider);
}

.release-data dt {
  color: var(--color-text-muted);
}

.release-data dd {
  margin: 0;
  color: var(--color-text);
  font-weight: 650;
  overflow-wrap: anywhere;
}

.checksum {
  margin-top: 24px;
}

.checksum span {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.checksum code,
.downloader-code {
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.checksum code {
  display: block;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #0a1017;
  color: var(--color-text-soft);
  overflow-wrap: anywhere;
}

.availability-note {
  margin: 22px 0;
  color: var(--color-text-soft);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.warning-note {
  margin: 22px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--color-warning);
  background: rgba(242, 184, 75, 0.08);
  color: var(--color-text-soft);
  font-size: 14px;
}

.compact-card p {
  margin-bottom: 0;
  color: var(--color-text-soft);
}

.downloader-code {
  display: block;
  margin: 18px 0;
  color: var(--color-text);
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.qr-image {
  width: min(220px, 100%);
  margin: 18px auto;
  border-radius: var(--radius-sm);
  background: white;
}

.steps-grid {
  counter-reset: steps;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  padding: 0;
  list-style: none;
}

.steps-grid li {
  padding: 24px;
}

.steps-grid li > span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 50%;
  background: rgba(32, 199, 183, 0.14);
  color: var(--color-accent);
  font-weight: 850;
}

.steps-grid h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.steps-grid p {
  margin: 0;
  color: var(--color-text-soft);
}

.security-grid .card {
  padding: 24px;
}

.faq-list {
  border-top: 1px solid var(--color-divider);
}

.faq-item {
  border-bottom: 1px solid var(--color-divider);
}

.faq-item h3 {
  margin: 0;
}

.faq-item button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 4px;
  border: 0;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  font-weight: 750;
  text-align: left;
}

.faq-item button span {
  color: var(--color-accent);
  font-size: 28px;
  line-height: 1;
  transition: transform 180ms ease;
}

.faq-item button[aria-expanded="true"] span {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 42px 22px 4px;
  color: var(--color-text-soft);
}

.faq-answer p {
  margin: 0;
}

.support-section {
  background:
    radial-gradient(circle at 50% 0, rgba(32, 199, 183, 0.11), transparent 50%),
    var(--color-section);
}

.support-panel {
  padding: 48px;
  border: 1px solid rgba(32, 199, 183, 0.28);
  border-radius: var(--radius-lg);
  background: rgba(21, 31, 43, 0.76);
  text-align: center;
}

.support-panel h2 {
  margin: 8px 0 12px;
  font-size: clamp(32px, 4vw, 44px);
}

.support-panel p:not(.eyebrow) {
  max-width: 720px;
  margin: 0 auto 24px;
  color: var(--color-text-soft);
}

.support-status {
  margin-bottom: 0 !important;
}

.support-actions {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

.site-footer {
  padding-top: 64px;
  border-top: 1px solid var(--color-divider);
  background: #080d13;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-grid > div p {
  max-width: 560px;
  color: var(--color-text-soft);
}

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

.footer-grid nav a {
  color: var(--color-text-soft);
  text-decoration: none;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-block: 22px;
  border-top: 1px solid var(--color-divider);
  color: var(--color-text-muted);
  font-size: 14px;
}

.footer-bottom p {
  margin: 0;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 500;
  width: min(420px, calc(100% - 44px));
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid rgba(32, 199, 183, 0.42);
  border-radius: var(--radius-md);
  background: var(--color-raised);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.34);
}

.toast[hidden] {
  display: none;
}

.toast p {
  flex: 1;
  margin: 0;
}

.toast button {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.page-shell {
  min-height: calc(100vh - var(--header-height));
  padding-block: 72px;
}

.page-content {
  max-width: 850px;
}

.page-content h1 {
  margin-top: 0;
  font-size: clamp(38px, 6vw, 58px);
  line-height: 1.08;
}

.page-content h2 {
  margin-top: 42px;
  font-size: 28px;
}

.page-content p,
.page-content li {
  color: var(--color-text-soft);
}

.placeholder-note {
  padding: 18px;
  border-left: 3px solid var(--color-warning);
  background: rgba(242, 184, 75, 0.08);
}

@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 48px;
  }

  .hero-copy {
    max-width: 850px;
  }

  .hero-visual {
    max-width: 820px;
  }

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

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

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

@media (max-width: 860px) {
  .container {
    width: min(calc(100% - 48px), var(--container));
  }

  .section {
    padding-block: 72px;
  }

  .menu-toggle {
    display: block;
  }

  .main-navigation {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    height: calc(100dvh - var(--header-height));
    display: none;
    align-content: start;
    align-items: stretch;
    gap: 4px;
    padding: 24px;
    border: 0;
    border-top: 1px solid var(--color-divider);
    border-radius: 0;
    background: rgba(15, 23, 34, 0.995);
    box-shadow: none;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .main-navigation[data-open="true"] {
    display: grid;
  }

  .main-navigation > a {
    min-height: 52px;
    display: flex;
    align-items: center;
    padding: 12px 8px;
    border-bottom: 1px solid var(--color-divider);
  }

  .main-navigation .button {
    width: 100%;
    margin-top: 16px;
  }

  body.menu-open {
    overflow: hidden;
  }

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

  .screenshot-card {
    max-width: 720px;
  }

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

@media (max-width: 639px) {
  body {
    background-attachment: scroll;
  }
  .container {
    width: calc(100% - 32px);
  }

  .section {
    padding-block: 60px;
  }

  .hero {
    padding-top: 66px;
  }

  .hero-copy h1 {
    font-size: clamp(38px, 12vw, 52px);
  }

  .hero-actions,
  .button-row {
    display: grid;
  }

  .hero-actions .button,
  .button-row .button,
  .support-actions .button {
    width: 100%;
  }

  .feature-grid,
  .security-grid,
  .steps-grid,
  .download-side {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 0;
  }

  .card-title-row {
    display: grid;
  }

  .release-data div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .support-panel {
    padding: 32px 22px;
  }

  .footer-bottom {
    display: grid;
  }

  .toast {
    right: 16px;
    bottom: 16px;
    width: calc(100% - 32px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}