*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: inherit;
}

:root {
  --black: #000000;
  --white: #ffffff;
  --text: #111111;
  --red: #d62828;
  --red-hover: #b91c1c;
  --gray: #666666;
  --font: 'Poppins', sans-serif;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font);
}

body {
  font-family: inherit;
  background: var(--white);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Hero */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  max-width: 640px;
  animation: fadeUp 0.8s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.logo-link {
  text-decoration: none;
  color: inherit;
  margin-bottom: 3rem;
  display: block;
}

.logo__image {
  width: min(380px, 92vw);
  height: auto;
  display: block;
}

.hero__nav {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
  width: 100%;
}

.hero__link {
  color: var(--text);
  text-decoration: none;
  font-size: clamp(1.1rem, 4vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 0.35rem 0;
  white-space: nowrap;
  transition: color var(--transition), transform var(--transition);
}

.hero__link:hover {
  color: var(--red);
  transform: scale(1.02);
}

.hero__link--static {
  cursor: default;
}

.hero__link--static:hover {
  color: var(--text);
  transform: none;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--black);
  border-radius: 10px;
  color: var(--white);
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
}

.social-btn svg {
  width: 22px;
  height: 22px;
}

.social-btn:hover {
  background: #333333;
  transform: translateY(-2px);
}

.terms-link {
  color: var(--text);
  font-size: 0.875rem;
  font-style: italic;
  text-decoration: none;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.terms-link:hover {
  opacity: 1;
  text-decoration: underline;
}

/* Sections */
.section {
  padding: 5rem 1.5rem;
  background: var(--white);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.section--dark {
  background: #f8f8f8;
}

.section__inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.section h2 {
  font-family: var(--font);
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin-bottom: 1rem;
}

.section p {
  color: var(--gray);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  border-radius: 4px;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  margin: 0.35rem;
}

.btn--primary {
  background: var(--red);
  color: var(--white);
  border: 2px solid var(--red);
}

.btn--primary:hover {
  background: var(--red-hover);
  border-color: var(--red-hover);
}

.btn--outline {
  background: transparent;
  color: var(--text);
  border: 2px solid rgba(0, 0, 0, 0.2);
}

.btn--outline:hover {
  border-color: var(--text);
}

/* Footer */
.site-footer {
  padding: 2rem 1.5rem;
  text-align: center;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
}

.site-footer p {
  font-size: 0.8125rem;
  color: var(--gray);
}

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 40px;
  height: 40px;
  background: var(--red);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition);
  z-index: 50;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--red-hover);
}

/* Shop page */
.page-content {
  min-height: 100vh;
  padding: 3rem 1.5rem 4rem;
}

.page-content__inner {
  max-width: 960px;
  margin: 0 auto;
}

.page-content h1 {
  font-family: var(--font);
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 2rem;
  text-align: center;
}

.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.product-card:hover {
  border-color: rgba(0, 0, 0, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.product-card__image {
  aspect-ratio: 1;
  background: linear-gradient(135deg, #f5f5f5, #ebebeb);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.product-card__body {
  padding: 1.25rem;
}

.product-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.product-card__price {
  color: var(--red);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Terms page */
.terms-content {
  max-width: 680px;
  margin: 0 auto;
}

.terms-content h1 {
  font-family: var(--font);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 2rem;
  text-align: center;
}

.terms-content h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.75rem;
}

.terms-content p {
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.terms-content a {
  color: var(--text);
  font-weight: 600;
}

@media (min-width: 768px) {
  .hero__nav {
    gap: 2rem;
  }

  .hero__link {
    font-size: 1.75rem;
  }

  .social-btn {
    width: 52px;
    height: 52px;
  }
}