/* ==========================================================
   Verde & Barro — Brand Stylesheet
   ==========================================================
   Color Palette:
     --sage:       #7A9E7E  (primary green)
     --terracotta: #C4754B  (accent)
     --cream:      #FAF6F0  (background)
     --charcoal:   #2D2D2D  (text)
     --sand:       #E8DDD3  (secondary background)
   ========================================================== */

:root {
  --sage: #7A9E7E;
  --sage-dark: #5F8363;
  --terracotta: #C4754B;
  --terracotta-dark: #A8603B;
  --cream: #FAF6F0;
  --charcoal: #2D2D2D;
  --sand: #E8DDD3;
  --white: #FFFFFF;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.12);
  --transition: 0.2s ease;
  --max-width: 1120px;
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--charcoal);
  background-color: var(--cream);
  line-height: 1.6;
  min-height: 100vh;
}

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

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

/* ---- Site Header ---- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--sand);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--sage-dark);
  letter-spacing: -0.02em;
}

.site-header__logo-icon {
  color: var(--sage);
}

.site-header__nav {
  display: flex;
  gap: 2rem;
}

.site-header__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--charcoal);
  transition: color var(--transition);
  position: relative;
}

.site-header__link:hover,
.site-header__link.active {
  color: var(--sage-dark);
}

/* ---- Site Footer ---- */
.site-footer {
  background: var(--charcoal);
  color: var(--sand);
  text-align: center;
  padding: 2.5rem 1.5rem;
  margin-top: 4rem;
}

.site-footer__brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}

.site-footer__tagline {
  font-style: italic;
  font-size: 0.9rem;
  margin-top: 0.25rem;
  opacity: 0.8;
}

.site-footer__copy {
  font-size: 0.8rem;
  margin-top: 1rem;
  opacity: 0.6;
}

/* ---- Site Main ---- */
.site-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  min-height: 60vh;
}

/* ---- Catalog Page ---- */
.catalog-page__header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.catalog-page__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--charcoal);
  letter-spacing: -0.02em;
}

.catalog-page__subtitle {
  color: var(--sage-dark);
  margin-top: 0.5rem;
  font-size: 1.05rem;
}

/* ---- Product Grid ---- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* ---- Product Card ---- */
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}

.product-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.product-card__link {
  display: block;
}

.product-card__image-wrapper {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--sand);
}

.product-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.product-card:hover .product-card__image {
  transform: scale(1.05);
}

.product-card__info {
  padding: 1.25rem;
}

.product-card__name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.product-card__description {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.product-card__price {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--terracotta);
}

/* ---- Product Detail Page ---- */
.product-page {
  max-width: 960px;
  margin: 0 auto;
}

.product-page__back {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  color: var(--sage-dark);
  font-weight: 500;
  transition: color var(--transition);
}

.product-page__back:hover {
  color: var(--terracotta);
}

.product-page__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.product-page__image-wrapper {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--sand);
  box-shadow: var(--shadow);
}

.product-page__image {
  width: 100%;
  object-fit: contain;
  background: var(--sand);
}

.product-page__name {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.product-page__price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--terracotta);
  margin: 0.75rem 0;
}

.product-page__description {
  font-size: 1rem;
  line-height: 1.7;
  color: #555;
  margin-bottom: 2rem;
}

/* ---- Buy Button ---- */
.buy-button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #25D366;
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.85rem 1.75rem;
  border-radius: 50px;
  transition: background var(--transition), transform var(--transition);
  cursor: pointer;
  border: none;
}

.buy-button:hover {
  background: #1EBE57;
  transform: scale(1.03);
}

.buy-button__icon {
  flex-shrink: 0;
}

/* ---- About Page ---- */
.about-page {
  max-width: 680px;
  margin: 0 auto;
}

.about-page__title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.about-page__content p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.75;
  color: #555;
}

/* ---- Contact Page ---- */
.contact-page {
  max-width: 680px;
  margin: 0 auto;
}

.contact-page__title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.contact-page__content > p {
  color: #555;
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.contact-page__methods {
  display: grid;
  gap: 1.5rem;
}

.contact-page__method {
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.contact-page__method h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--sage-dark);
}

.contact-page__link {
  color: var(--terracotta);
  font-weight: 500;
  transition: color var(--transition);
}

.contact-page__link:hover {
  color: var(--terracotta-dark);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .site-header__nav {
    gap: 1.25rem;
  }

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

  .catalog-page__title {
    font-size: 1.5rem;
  }

  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

@media (max-width: 480px) {
  .site-header__inner {
    flex-direction: column;
    gap: 0.75rem;
  }

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