:root {
  --bg: #f4f3ef;
  --surface: #ffffff;
  --text: #121212;
  --muted: #65686d;
  --line: #d9d7d1;
  --focus: #1858ff;
  --max: 920px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(180deg, #f8f7f3 0%, #f0eeea 100%);
  color: var(--text);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 6px;
}

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

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

.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -5rem;
  background: #fff;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  z-index: 1000;
}

.skip-link:focus {
  top: 0.5rem;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: #f8f8f6;
}

.nav-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
}

.wordmark {
  margin: 0;
  font-size: 0.88rem;
  letter-spacing: 0.2em;
  font-weight: 700;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

nav {
  display: flex;
  gap: 1rem;
}

nav a {
  padding: 0.25rem 0.4rem;
  color: var(--muted);
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
}

.lang-btn {
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 0.82rem;
  padding: 0.1rem 0.2rem;
  cursor: pointer;
}

.lang-btn.is-active {
  color: var(--text);
  font-weight: 700;
}

.lang-sep {
  color: #999;
}

main {
  padding-bottom: 2rem;
}

.hero {
  padding: 3.2rem 0 1.4rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.product {
  margin: 0.7rem 0 0;
  font-size: clamp(1.3rem, 3.5vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.lead {
  margin: 0.6rem 0 1.15rem;
  color: #333;
  font-size: clamp(1rem, 2.2vw, 1.15rem);
}

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

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

.fold-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1rem 0;
}

.fold-title {
  margin: 0;
  font-size: clamp(1.08rem, 2.8vw, 1.42rem);
  line-height: 1.15;
}

.fold-subtitle {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.fold-toggle {
  border: 1px solid var(--line);
  background: var(--surface);
  color: #242424;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  flex: 0 0 auto;
}

.chev {
  display: inline-block;
  transition: transform 0.2s ease;
  transform-origin: center;
}

.fold.is-open .chev {
  transform: rotate(180deg);
}

.fold-body {
  padding: 0 0 1rem;
}

.fold-body p,
.fold-body li {
  margin: 0;
  color: #2a2a2a;
  max-width: 72ch;
}

.fold-body p + p {
  margin-top: 0.6rem;
}

.fold-body ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.4rem;
}

.peek-row {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.peek-row img {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.peek-thumb-btn {
  border: 0;
  padding: 0;
  background: transparent;
  cursor: zoom-in;
}

.peek-thumb-btn img {
  width: 100%;
}

.peek-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(12, 12, 12, 0.84);
  z-index: 1200;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.peek-lightbox[hidden] {
  display: none;
}

.peek-lightbox img {
  max-width: min(96vw, 1400px);
  max-height: 90vh;
  width: auto;
  height: auto;
  border: 1px solid #2d2d2d;
  border-radius: 10px;
  background: #111;
}

.peek-lightbox-close {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  border: 1px solid #666;
  background: #1f1f1f;
  color: #f1f1f1;
  padding: 0.45rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
}

.fold-question .fold-title {
  font-size: clamp(1rem, 2.5vw, 1.22rem);
}

.site-footer {
  padding: 2rem 0;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.4rem;
  align-items: center;
  color: #333;
  font-size: 0.95rem;
}

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

@media (max-width: 900px) {
  .nav-right {
    gap: 0.8rem;
  }

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

@media (hover: hover) and (pointer: fine) {
  .fold-head[data-fold-hover-target] {
    cursor: default;
  }

  .fold-toggle {
    opacity: 0.38;
    pointer-events: none;
  }

  .fold:hover .fold-toggle,
  .fold.is-open .fold-toggle {
    opacity: 1;
  }
}