:root {
  --floral-white: #fffcf2ff;
  --dust-grey: #ccc5b9ff;
  --charcoal-brown: #403d39ff;
  --carbon-black: #252422ff;
  --spicy-paprika: #eb5e28ff;

  --bg: var(--carbon-black);
  --surface: var(--charcoal-brown);
  --surface-2: #35322f;
  --text: var(--floral-white);
  --muted: var(--dust-grey);
  --primary: var(--spicy-paprika);
  --border: #5a5550;
  --border-hover: var(--dust-grey);
  --topbar-bg: rgba(37, 36, 34, 0.96);
  --badge-fg: var(--floral-white);
  --max-width: 1050px;
  --tap-target: 44px;
  --ease-out-standard: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 180ms;
  --duration-mid: 260ms;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
}

.status-message {
  margin-top: 0.9rem;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  color: var(--muted);
  transition: opacity var(--duration-fast) var(--ease-out-standard);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 50;
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  border-radius: 8px;
  padding: 0.5rem 0.8rem;
  font-weight: 700;
}

.skip-link:focus {
  top: 0.75rem;
}

a {
  color: var(--primary);
  text-decoration-color: color-mix(in srgb, var(--primary) 55%, transparent);
  transition: color var(--duration-fast) var(--ease-out-standard),
    text-decoration-color var(--duration-fast) var(--ease-out-standard);
}

a:hover {
  color: var(--floral-white);
  text-decoration-color: var(--floral-white);
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
}

.topbar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: clamp(1.2rem, 1.4vw, 1.55rem);
  letter-spacing: 0.01em;
}

.menu {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.menu a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: var(--tap-target);
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color var(--duration-fast) var(--ease-out-standard),
    border-color var(--duration-fast) var(--ease-out-standard),
    background-color var(--duration-fast) var(--ease-out-standard);
}

.menu a:hover {
  color: var(--floral-white);
  background: color-mix(in srgb, var(--charcoal-brown) 78%, var(--spicy-paprika) 22%);
}

.menu a.is-active {
  color: var(--floral-white);
  background: color-mix(in srgb, var(--charcoal-brown) 68%, var(--spicy-paprika) 32%);
  border: 1px solid color-mix(in srgb, var(--spicy-paprika) 60%, var(--dust-grey) 40%);
}

.menu a:focus-visible,
.btn:focus-visible,
.lang-btn:focus-visible,
a:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.4rem 0.7rem;
  min-height: var(--tap-target);
  min-width: var(--tap-target);
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-out-standard),
    background-color var(--duration-fast) var(--ease-out-standard);
}

.lang-btn.is-active {
  background: color-mix(in srgb, var(--charcoal-brown) 72%, var(--spicy-paprika) 28%);
  color: var(--floral-white);
}

.hero {
  padding: 4rem 0 2.5rem;
}

.kicker {
  color: var(--primary);
  margin-bottom: 0.4rem;
  font-weight: 600;
}

h1 {
  margin: 0;
  font-size: clamp(1.65rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  max-width: 24ch;
  text-wrap: balance;
}

.lead {
  margin-top: 1.2rem;
  color: var(--muted);
  max-width: 70ch;
}

.hero-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
  justify-content: flex-start;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  justify-content: center;
  text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--dust-grey) 35%, var(--spicy-paprika) 65%);
  border-radius: 10px;
  padding: 0.72rem 1.2rem;
  min-height: var(--tap-target);
  min-width: 150px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--floral-white);
  background: color-mix(in srgb, var(--charcoal-brown) 80%, var(--spicy-paprika) 20%);
  transition: background-color var(--duration-fast) var(--ease-out-standard),
    border-color var(--duration-fast) var(--ease-out-standard),
    color var(--duration-fast) var(--ease-out-standard),
    transform var(--duration-fast) var(--ease-out-standard);
}

.hero-actions .icon {
  width: 18px;
  height: 18px;
  display: block;
  object-fit: contain;
  opacity: 1;
  filter: none;
}

.btn-alt {
  background: transparent;
  color: var(--dust-grey);
  border-color: var(--dust-grey);
}

.btn:hover {
  border-color: var(--spicy-paprika);
  background: color-mix(in srgb, var(--charcoal-brown) 62%, var(--spicy-paprika) 38%);
  transform: translateY(-1px);
}

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

.section {
  padding: 1.8rem 0;
  content-visibility: auto;
  contain-intrinsic-size: 1px 560px;
}

h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0;
  font-size: 1.35rem;
}

.subsection-title {
  margin: 1.2rem 0 0.7rem;
  font-size: 1rem;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  transition: border-color var(--duration-fast) var(--ease-out-standard),
    transform var(--duration-mid) var(--ease-out-standard);
}

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

.card h3 {
  margin-top: 0;
  margin-bottom: 0.45rem;
  font-size: 1.02rem;
  overflow-wrap: anywhere;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}

.repo-badge {
  display: inline-flex;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: 1px solid var(--spicy-paprika);
  color: var(--floral-white);
  background: color-mix(in srgb, var(--spicy-paprika) 55%, var(--charcoal-brown) 45%);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  margin-bottom: 0.6rem;
  transition: background-color var(--duration-fast) var(--ease-out-standard),
    color var(--duration-fast) var(--ease-out-standard);
}

.icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  filter: grayscale(1) brightness(0) invert(1);
  opacity: 0.9;
}

.icon-nav {
  width: 14px;
  height: 14px;
  opacity: 0.75;
}

.icon-title {
  width: 18px;
  height: 18px;
}

.repo-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.repo-meta .icon {
  width: 13px;
  height: 13px;
  opacity: 0.75;
}

.timeline {
  display: grid;
  gap: 0.85rem;
}

.timeline-item {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 12px;
  padding: 1rem;
  transition: border-color var(--duration-fast) var(--ease-out-standard);
}

.timeline-item:hover {
  border-color: var(--border-hover);
}

.timeline-item h3 {
  margin: 0 0 0.3rem;
}

.meta {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.timeline-item ul {
  margin: 0;
  padding-left: 1rem;
}

.timeline-item li {
  margin-bottom: 0.35rem;
}

.muted {
  color: var(--muted);
}

.footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding: 1rem 0 2rem;
  color: var(--muted);
}

.section-about p,
.section-contact p {
  max-width: 68ch;
}

.product-list {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-item {
  display: grid;
  gap: 0.8rem;
  align-items: start;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 1rem;
  transition: border-color var(--duration-fast) var(--ease-out-standard),
    transform var(--duration-mid) var(--ease-out-standard);
}

.product-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.product-item-link {
  text-decoration: none;
  color: inherit;
}

.product-copy h3 {
  margin: 0 0 0.45rem;
  font-size: 1.02rem;
  overflow-wrap: anywhere;
}

.product-copy p {
  margin: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.product-link {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  min-height: var(--tap-target);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--spicy-paprika);
}

.product-item:hover .product-link {
  color: var(--floral-white);
}

.section-opensource .grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.section-opensource .card {
  display: grid;
  gap: 0.55rem;
}

.section-opensource .card .meta {
  margin: 0;
}

@media (min-width: 980px) {
  .product-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .topbar-content {
    min-height: auto;
    padding: 0.75rem 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .brand {
    display: inline-flex;
    min-height: var(--tap-target);
    align-items: center;
    justify-content: center;
    font-size: clamp(1.22rem, 4.8vw, 1.48rem);
  }

  .menu {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
  }

  .menu a {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
  }

  .lang-switch {
    width: 100%;
  }

  .lang-btn {
    flex: 1;
  }

  .hero {
    padding-top: 2.8rem;
  }

  .hero-actions {
    gap: 0.55rem;
    justify-content: center;
  }

  .hero-actions .btn {
    flex: 1 1 220px;
    max-width: 320px;
  }

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

  .section-opensource .grid {
    grid-template-columns: 1fr;
  }

  .menu a.is-active {
    background: var(--surface-2);
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 1.25rem, var(--max-width));
  }

  h1 {
    max-width: 18ch;
  }

  .section {
    padding: 1.5rem 0;
  }

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

  .product-list {
    grid-template-columns: 1fr;
  }
}

@media (pointer: coarse) {
  .menu a,
  .lang-btn,
  .btn {
    min-height: var(--tap-target);
  }
}

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

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

  .btn,
  .card,
  .product-item {
    transform: none !important;
  }
}