/* ============================================
   TREKKING — Warm Olive Masonry Layout
   ============================================ */

.trekking {
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
  background: var(--bg-base);
  margin-top: -60px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  z-index: 14;
  box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.1);
}

/* Parallax Mountain Layers */
.trekking__parallax {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.trekking__parallax-layer {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40%;
  opacity: 0.06;
}

.trekking__parallax-layer--1 {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23C4A86C' d='M0,224L48,213.3C96,203,192,181,288,181.3C384,181,480,203,576,218.7C672,235,768,245,864,234.7C960,224,1056,192,1152,176C1248,160,1344,160,1392,160L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'/%3E%3C/svg%3E") no-repeat bottom;
  background-size: cover;
  will-change: transform;
}

.trekking__parallax-layer--2 {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%233A5C3F' d='M0,288L60,272C120,256,240,224,360,218.7C480,213,600,235,720,245.3C840,256,960,256,1080,234.7C1200,213,1320,171,1380,149.3L1440,128L1440,320L1380,320C1320,320,1200,320,1080,320C960,320,840,320,720,320C600,320,480,320,360,320C240,320,120,320,60,320L0,320Z'/%3E%3C/svg%3E") no-repeat bottom;
  background-size: cover;
  height: 30%;
  will-change: transform;
}

.trekking__inner {
  position: relative;
  z-index: 1;
}

.trekking__header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.trekking__header .section-label {
  justify-content: center;
}

.trekking__header .section-subtitle {
  margin: 0 auto;
}

/* Masonry Grid */
.trekking__masonry {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 200px;
  gap: var(--space-5);
}

.trekking__card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.trekking__card:nth-child(1) { grid-row: span 2; }
.trekking__card:nth-child(2) { grid-row: span 2; }
.trekking__card:nth-child(3) { grid-row: span 2; }
.trekking__card:nth-child(4) { grid-row: span 1; }
.trekking__card:nth-child(5) { grid-row: span 1; grid-column: span 2; }

.trekking__card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-smooth);
}

.trekking__card:hover .trekking__card-image {
  transform: scale(1.1);
}

.trekking__card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(31, 41, 51, 0.85) 100%);
  z-index: 1;
  transition: background var(--duration-normal) var(--ease-smooth);
}

.trekking__card:hover .trekking__card-overlay {
  background: linear-gradient(180deg, transparent 20%, rgba(31, 41, 51, 0.92) 100%);
}

.trekking__card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-6);
  z-index: 2;
}

.trekking__card-difficulty {
  display: inline-block;
  font-size: 10px;
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--charcoal);
  background: var(--sky-blue);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.trekking__card-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-2);
  color: #F2EDE4;
}

.trekking__card-info {
  font-size: var(--text-xs);
  color: rgba(242, 237, 228, 0.7);
  display: flex;
  gap: var(--space-4);
}

.trekking__card-info span {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

@media (max-width: 1024px) {
  .trekking__masonry {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 180px;
  }

  .trekking__card:nth-child(5) { grid-column: span 1; }
}

@media (max-width: 640px) {
  .trekking__masonry {
    grid-template-columns: 1fr;
    grid-auto-rows: 250px;
  }

  .trekking__card:nth-child(n) {
    grid-row: span 1;
    grid-column: span 1;
  }
}