/* ====== Base ====== */
:root {
  --header-bg: #FEFFF0;
  --page-bg: #FFFFFF;
  --text-main: #222222;
  --text-muted: #666666;
  --accent: #111111;
  --border-soft: #e5e5e5;
  --radius-lg: 16px;
  --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.03);
}

/* Sticky footer layout */
html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  background-color: var(--page-bg);
  color: var(--text-main);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  align-items: stretch;
}

main {
  flex: 1; /* Push footer down */
  padding: 2.25rem 0 3.5rem;
  width: 100%;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

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

.wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ====== Header & Navigation ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--header-bg);
  border-bottom: 1px solid var(--border-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 32px;
}

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

/* Nav */
.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  padding-bottom: 0.15rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease, opacity 0.15s ease;
  opacity: 0.8;
}

.nav-link:hover {
  opacity: 1;
  border-bottom-color: var(--border-soft);
}

.nav-link.active {
  border-bottom-color: var(--accent);
  opacity: 1;
  font-weight: 600;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.25rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px 0;
  background-color: #333;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ====== Layout ====== */
.page-intro {
  margin-bottom: 2rem;
}

.page-title {
  font-size: 1.7rem;
  margin-bottom: 0.35rem;
}

.page-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.section-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem 1.75rem;
  background-color: #ffffff;
  margin-bottom:1.5rem;
}

.grid-two {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 1.75rem;
}

/* ====== Details Lists ====== */
.details-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.details-list li {
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ====== Footer (Sticky) ====== */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 1.25rem 0 1.75rem;
  background-color: var(--header-bg);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: auto; /* Key for sticky footer */
}

/* ====== Forms ====== */
.form {
  display: grid;
  gap: 1rem;
}

.form-row {
  display: grid;
  gap: 0.5rem;
}

.form-row label {
  font-size: 0.9rem;
}

.form-row input,
.form-row textarea {
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  padding: 0.6rem 0.75rem;
  font: inherit;
  outline: none;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: #222;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.02);
}

.button-primary {
  border-radius: 999px;
  padding: 0.6rem 1.4rem;
  border: 1px solid #111;
  background-color: #111;
  color: #fff;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.08s ease, box-shadow 0.15s ease;
}

.button-primary:hover {
  background-color: #000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.button-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}

/* ====== Catalog Cards ====== */
.catalog-grid {
  display: grid;
  gap: 1.25rem;
}

.catalog-item {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 1.1rem 1.25rem;
  background-color: #fff;
  box-shadow: var(--shadow-soft);
}

.catalog-item h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.catalog-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ====== Responsive ====== */
@media (max-width: 768px) {
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--header-bg);
    flex-direction: column;
    padding: 0.5rem 1.25rem 1rem;
    border-bottom: 1px solid var(--border-soft);
    display: none;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-block;
  }

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

/* ===== Carousel ===== */

.home-carousel {
  margin-bottom: 2.5rem;
  margin-top: 2.5rem;
}

.carousel-container {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.carousel-slide {
  display: none;
}

.carousel-slide img {
  width: 100%;
  display: block;
  height: 380px;
  object-fit: cover;
}

/* Arrows */
.carousel-prev,
.carousel-next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  margin-top: -22px;
  padding: 10px;
  color: #fff;
  font-weight: bold;
  font-size: 24px;
  background: rgba(0,0,0,0.4);
  border-radius: 50%;
  user-select: none;
}

.carousel-prev { left: 15px; }
.carousel-next { right: 15px; }

/* Dots */
.carousel-dots {
  text-align: center;
  padding-top: 12px;
}

.dot {
  height: 10px;
  width: 10px;
  margin: 0 4px;
  background-color: #bbb;
  display: inline-block;
  border-radius: 50%;
  cursor: pointer;
}

.dot.active {
  background-color: #333;
}

/* Fade animation */
.fade {
  animation: fadeEffect 1s;
}

@keyframes fadeEffect {
  from { opacity: 0.4; }
  to { opacity: 1; }
}

/* ===== Home Product Section ===== */

.products-section h2 {
  margin-bottom: 1.5rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.product-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  text-align: center;
  background: #fff;
  padding-bottom: 1rem;
}

.product-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.product-card h3 {
  margin-top: 0.75rem;
  font-size: 1rem;
}
/* ===== Clients Logos in Existing Card ===== */

.clients-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.clients-logos img {
  height: 80px;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.clients-logos img:hover {
  transform: scale(1.05);
}