:root {
  --bg: #f6f4f2;
  --surface: #ffffff;
  --muted: #423f3b;
  --text: #16120f;
  --accent: #ba6255;
  --accent-strong: #a44f46;
  --link: #3c5875;
  --border: #e3dfd8;
  --shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --space-2: 4px;
  --space-3: 8px;
  --space-4: 12px;
  --space-5: 16px;
  --space-6: 20px;
  --space-7: 24px;
  --space-8: 28px;
  --max-width: 1120px;
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;
}

[data-theme="dark"] {
  --bg: #0f0f0f;
  --surface: #161616;
  --muted: #d6d0c8;
  --text: #f5efe6;
  --accent: #ff9c7c;
  --accent-strong: #ffb38f;
  --link: #a6c2ff;
  --border: #242424;
  --shadow: 0 12px 28px rgba(0, 0, 0, 0.55);
  color-scheme: dark;
}

[data-theme="high-contrast"] {
  font-size: 18px;
  line-height: 1.7;
  --bg: #0a0a0a;
  --surface: #141414;
  --muted: #f1eee7;
  --text: #ffffff;
  --accent: #ffd166;
  --accent-strong: #ffe29f;
  --link: #f4d35e;
  --border: #ffffff;
  --shadow: none;
  color-scheme: dark;
}

[data-theme="high-contrast"] a {
  text-decoration: underline;
}

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

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  line-height: 1.6;
  font-size: 16px;
  transition: background 0.3s ease, color 0.3s ease;
}

a:not(.btn) {
  color: color-mix(in srgb, var(--text) 40%, var(--link));
  font-weight: 600;
  position: relative;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.16s ease-out;
}

a:not(.btn):hover,
a:not(.btn):focus-visible {
  color: var(--accent);
}

a:not(.btn):hover::after,
a:not(.btn):focus-visible::after {
  transform: scaleX(1);
}

.link-quiet {
  color: color-mix(in srgb, var(--text) 35%, var(--link));
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

ul {
  padding-left: 20px;
  margin: 0 0 var(--space-4);
  gap: var(--space-3);
}

li {
  margin-bottom: var(--space-3);
}

p {
  margin: 0 0 var(--space-4);
}

.container {
  width: min(var(--max-width), 100%);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 96%, var(--accent) 4%);
  backdrop-filter: blur(8px);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: var(--space-3) 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.nav-dropdown,
.theme-dropdown {
  position: relative;
}

.dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.dropdown-menu {
  position: absolute;
  left: 0;
  right: auto;
  top: calc(100% + var(--space-2));
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow);
  min-width: 220px;
  max-width: min(380px, calc(100vw - 2 * var(--space-5)));
  z-index: 11;
}

.nav-dropdown.is-open .dropdown-menu,
.theme-dropdown.is-open .dropdown-menu {
  display: block;
}

.site-nav ul {
  list-style: none;
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.site-nav a {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 14px;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
}

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

.site-nav a:hover,
.site-nav a:focus-visible {
  background: color-mix(in srgb, var(--surface) 92%, var(--accent) 8%);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.lang-switch {
  display: inline-flex;
  gap: 4px;
  border: 1px solid color-mix(in srgb, var(--border) 90%, var(--accent) 10%);
  border-radius: 999px;
  padding: 4px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.lang-button,
.theme-button {
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 650;
  cursor: pointer;
  min-width: 40px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.1s ease;
}

.lang-button.is-active,
.theme-button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}

.theme-dropdown .dropdown-menu {
  display: none;
  gap: var(--space-3);
  align-items: stretch;
  flex-direction: column;
  left: auto;
  right: 0;
}

.theme-dropdown.is-open .dropdown-menu {
  display: flex;
}

.lang-button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

main {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
  padding: var(--space-6) 0 var(--space-8);
}

.hero {
  padding: var(--space-6) 0 var(--space-5);
  background: linear-gradient(140deg, color-mix(in srgb, var(--accent) 10%, transparent), var(--bg));
}

.hero-grid {
  display: grid;
  gap: var(--space-5);
  align-items: start;
}

.hero-content h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(28px, 6vw, 46px);
}

.hero-bullets {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  display: grid;
  gap: var(--space-2);
}

.hero-figure {
  margin: 0;
  max-width: min(60vw, 240px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: var(--space-3);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-note {
  margin: var(--space-3) 0 0;
  font-size: 14px;
  color: color-mix(in srgb, var(--muted) 80%, var(--text) 20%);
  background: color-mix(in srgb, var(--surface) 94%, var(--accent) 6%);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  width: fit-content;
  max-width: 100%;
}

.content-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.section-header h2 {
  margin: 0;
  font-size: clamp(22px, 4vw, 30px);
}

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

.content-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid;
  gap: var(--space-4);
}

.content-card ul:last-child {
  margin-bottom: 0;
}

.about-card {
  padding-bottom: var(--space-4);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 8%, var(--surface));
  color: color-mix(in srgb, var(--text) 75%, var(--muted) 25%);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  border: 1px solid color-mix(in srgb, var(--border) 80%, var(--text) 20%);
  width: fit-content;
  text-transform: uppercase;
}

.timeline,
.list-tight {
  padding-left: 20px;
  margin: 0;
}

.list-tight li {
  margin-bottom: var(--space-3);
}

.products {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

.product-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: var(--space-4);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 100%;
}

.product-top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.product-title {
  margin: 0;
  font-weight: 800;
  font-size: 18px;
}

.product-meta {
  color: var(--muted);
  font-size: 13px;
}

.product-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: var(--space-2);
}

.product-footer {
  margin-top: auto;
  display: flex;
}

.product-cta {
  width: 100%;
}

blockquote {
  margin: 0;
  padding-left: var(--space-4);
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}

.media-column {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--border);
  display: grid;
  gap: var(--space-3);
}

@media (hover: hover) {
  .product-card:hover,
  .media-column:hover,
  .content-card:hover:not(.products) {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  }
}

.media-heading {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0;
}

.media-heading .media-meta {
  font-size: 13px;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  min-height: 44px;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  transform: scale(1.02);
}

.btn-secondary {
  background: transparent;
  border-color: color-mix(in srgb, var(--border) 70%, var(--accent) 30%);
  color: color-mix(in srgb, var(--text) 70%, var(--accent) 30%);
  box-shadow: none;
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface) 86%);
  border-color: var(--accent);
  transform: scale(1.02);
}

.btn:active {
  transform: scale(0.99);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-card p {
  margin: 0;
}

.contact-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-5) 0;
  background: color-mix(in srgb, var(--surface) 90%, var(--accent) 10%);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
  text-align: center;
}

.footer-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.footer-line {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}

.changelog-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  cursor: pointer;
  color: var(--text);
  transition: background 0.2s ease, transform 0.1s ease;
}

.changelog-toggle:hover,
.changelog-toggle:focus-visible {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface) 86%);
  transform: translateY(-1px);
}

.changelog-panel {
  border: 1px dashed color-mix(in srgb, var(--border) 70%, var(--text) 30%);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  background: color-mix(in srgb, var(--surface) 94%, var(--accent) 6%);
  box-shadow: var(--shadow);
  font-size: 14px;
}

.changelog-panel ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: var(--space-2);
}

.scroll-top {
  position: fixed;
  right: clamp(12px, 4vw, 20px);
  bottom: clamp(12px, 4vw, 24px);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 9;
}

.scroll-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.scroll-top:hover,
.scroll-top:focus-visible {
  transform: translateY(-1px);
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (min-width: 768px) {
  .header-bar {
    padding: var(--space-4) 0;
    gap: var(--space-4);
  }

  .header-actions {
    justify-content: flex-end;
  }

  .hero-grid {
    grid-template-columns: repeat(12, 1fr);
    align-items: center;
  }

  .hero-content {
    grid-column: span 7;
  }

  .hero-figure {
    grid-column: span 5;
    justify-self: end;
    max-width: 320px;
  }

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

  .contact-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (max-width: 640px) {
  .footer-line {
    flex-direction: column;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .products {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .hero {
    padding: var(--space-7) 0 var(--space-6);
  }

  .hero-figure {
    max-width: 360px;
  }
}