/* ============================================
       COLLECTION PAGE — IMMERSIVE DESIGN
       Gold: #b49a6a #c4ad7c   Dark: #2c2520
       ============================================ */

    /* HERO — fullscreen slider */
    .col-hero {
      position: relative;
      width: 100%;
      height: 100vh;
      overflow: hidden;
      background: #1a1714;
    }

    .col-hero > img,
    #heroSlider > img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
      opacity: 0;
      transition: opacity 0.8s ease;
    }
    .col-hero > img.active,
    #heroSlider > img.active { opacity: 1; }

    .col-hero-overlay {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 40%;
      background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(0,0,0,0.6) 100%
      );
      z-index: 1;
      pointer-events: none;
    }

    .col-hero-content {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 2;
      padding: 0 var(--spacing-container) 5vh;
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 40px;
    }
    .col-hero-text {
      flex: 1;
      max-width: 55%;
    }

    .col-hero-label {
      font-size: clamp(0.6rem, 0.8vw, 0.8vw);
      letter-spacing: 0.4em;
      text-transform: uppercase;
      color: #c4ad7c;
      font-weight: 500;
      margin-bottom: 1.5vw;
      opacity: 1;
    }

    .col-hero h1 {
      font-size: clamp(3rem, 7vw, 7vw);
      font-weight: 200;
      line-height: 1.05;
      letter-spacing: -0.03em;
      color: #fff;
      margin-bottom: 1.5vw;
      text-shadow: 0 2px 20px rgba(0,0,0,0.6), 0 1px 4px rgba(0,0,0,0.4);
      word-break: keep-all;
      overflow-wrap: normal;
    }

    .col-hero-word {
      display: inline-block;
      white-space: nowrap;
    }
    .col-hero-char {
      display: inline-block;
      opacity: 1;
      text-transform: uppercase;
      font-size: 1.4em;
      transition: font-size 0.35s ease-out, transform 0.35s ease-out;
      transform-origin: bottom left;
    }
    .col-hero-char.settled {
      font-size: 1em;
      text-transform: none;
    }
    .col-desc-word {
      display: inline-block;
      white-space: nowrap;
    }
    .col-desc-char {
      opacity: 1;
    }
    .col-desc-char.visible {
      opacity: 1;
    }
    .col-desc-cursor {
      display: inline-block;
      width: 2px;
      height: 0.9em;
      background: rgba(255,255,255,0.7);
      margin-left: 1px;
      vertical-align: text-bottom;
      animation: blink 0.6s step-end infinite;
    }
    @keyframes blink {
      50% { opacity: 0; }
    }

    .col-hero-desc {
      font-size: clamp(0.9rem, 1.1vw, 1.1vw);
      font-weight: 300;
      color: rgba(255,255,255,0.85);
      line-height: 1.7;
      max-width: 600px;
      opacity: 1;
      text-shadow: 0 1px 12px rgba(0,0,0,0.5), 0 1px 3px rgba(0,0,0,0.3);
    }

    /* Slider navigation */
    .col-slider-nav {
      display: flex;
      gap: 12px;
      flex-shrink: 0;
      align-self: flex-end;
    }
    .col-slider-dots {
      display: flex;
      gap: 6px;
    }

    .col-hero-slider-inner {
      display: contents;
    }

    .col-slider-dot {
      width: 128px;
      height: 76px;
      border-radius: 6px;
      overflow: hidden;
      border: 2px solid rgba(0,0,0,0.4);
      cursor: pointer;
      transition: all 0.3s;
      opacity: 0.6;
      flex-shrink: 0;
      padding: 0;
      background: transparent;
    }
    .col-slider-dot img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .col-slider-dot.active {
      border-color: #1a1a1a;
      opacity: 1;
      box-shadow: 0 0 0 1px rgba(0,0,0,0.3);
    }
    .col-slider-dot:hover:not(.active) { opacity: 0.85; }

    .col-slider-arrow {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: rgba(255,255,255,0.1);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255,255,255,0.15);
      cursor: pointer;
      font-size: 20px;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s;
      z-index: 3;
    }
    .col-slider-arrow:hover {
      background: rgba(255,255,255,0.2);
      border-color: rgba(196,173,124,0.4);
    }
    .col-slider-arrow.prev { left: 2vw; }
    .col-slider-arrow.next { right: 2vw; }

    /* Scroll indicator */
    .col-scroll-indicator {
      position: absolute;
      bottom: 1.5vh;
      left: 50%;
      transform: translateX(-50%);
      z-index: 3;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
      opacity: 1;
    }
    .col-scroll-indicator span {
      font-size: 28px;
      color: rgba(255,255,255,0.4);
      animation: scrollBounce 2s ease-in-out infinite;
    }
    @keyframes scrollBounce {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(6px); }
    }

    /* SPECS SECTION */
    .col-specs-section {
      background: #faf8f5;
      padding: 5vw var(--spacing-container);
    }

    .col-specs-inner {
      max-width: 1400px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 2fr 1fr;
      gap: 4vw;
      align-items: start;
    }

    .col-specs-left {
      opacity: 1;
    }

    .col-specs-collection-name {
      font-size: clamp(1.5rem, 2.5vw, 2.5vw);
      font-weight: 200;
      letter-spacing: -0.02em;
      color: #1a1a1a;
      line-height: 1.15;
    }

    .col-specs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0;
    }

    .col-spec {
      padding: 1.5vw 2vw;
      border-left: 1px solid rgba(180,154,106,0.15);
      opacity: 1;
    }
    .col-spec:first-child { border-left: none; }

    .col-spec-value {
      font-size: clamp(1.5rem, 2.2vw, 2.2vw);
      font-weight: 200;
      color: #1a1a1a;
      letter-spacing: -0.02em;
      margin-bottom: 6px;
    }

    .col-spec-label {
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: rgba(0,0,0,0.4);
      font-weight: 400;
    }

    .col-specs-right {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      opacity: 1;
    }

    .col-catalog-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      border: 1px solid rgba(180,154,106,0.3);
      border-radius: 50px;
      font-size: 0.78rem;
      font-weight: 400;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #1a1a1a;
      text-decoration: none;
      transition: all 0.3s;
    }
    .col-catalog-link:hover {
      background: #2c2520;
      color: #f5f0ea;
      border-color: #2c2520;
      opacity: 1;
    }
    .col-catalog-link .material-icons { font-size: 16px; }

    /* PRODUCTS SECTION */
    .col-products {
      background: #faf8f5;
      padding: 6vw var(--spacing-container);
    }

    .col-products-inner {
      max-width: 1400px;
      margin: 0 auto;
    }

    .col-products-header {
      display: flex;
      align-items: baseline;
      gap: 1.5vw;
      margin-bottom: 3vw;
    }

    .col-products-heading {
      font-size: clamp(1.8rem, 3vw, 3vw);
      font-weight: 200;
      letter-spacing: -0.02em;
      color: #1a1a1a;
      opacity: 1;
    }

    .col-products-count {
      font-size: 0.85rem;
      color: rgba(0,0,0,0.35);
      font-weight: 300;
      opacity: 1;
    }

    .col-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .col-card-top {
      display: flex; justify-content: space-between; align-items: flex-start;
      padding: 8px 4px 10px;
    }
    .col-card-art {
      font-size: 0.7rem; color: rgba(0,0,0,0.35); font-weight: 400;
    }
    .col-card-design {
      font-size: 0.65rem; color: #b49a6a; text-align: right; line-height: 1.35;
      font-weight: 500; transition: color 0.3s;
    }
    .col-card:hover .col-card-design { color: #8a7550; }

    .col-card {
      border: 1px solid rgba(0,0,0,0.08);
      border-radius: 16px;
      overflow: hidden;
      transition: box-shadow 0.4s ease, transform 0.4s ease;
      cursor: pointer;
      text-decoration: none;
      color: inherit;
      display: block;
      opacity: 1;
    }
    .col-card:hover {
      box-shadow: 0 12px 40px rgba(0,0,0,0.08);
      transform: translateY(-4px);
    }
    .col-card-image {
      overflow: hidden;
      background: #f5f5f5;
      aspect-ratio: 600 / 1200;
    }
    .col-card[data-size="600X900"] .col-card-image { aspect-ratio: 600 / 900; }
    .col-card[data-size="200X1200"] .col-card-image { aspect-ratio: 200 / 1200; max-height: 350px; }
    .col-card-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .col-card:hover .col-card-image img { transform: scale(1.05); }

    .col-card-info { padding: 16px; }

    .col-card-article {
      font-size: 0.65rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: rgba(0,0,0,0.35);
      margin-bottom: 6px;
    }

    .col-card-name {
      font-size: 0.95rem;
      font-weight: 400;
      color: #1a1a1a;
      margin-bottom: 8px;
    }

    .col-card-brand {
      font-size: 0.7rem;
      letter-spacing: 0.08em;
      color: #b49a6a;
      font-weight: 500;
      margin-bottom: 10px;
    }

    .col-card-price {
      font-size: 1.1rem;
      font-weight: 400;
      color: #1a1a1a;
      margin-bottom: 12px;
    }
    .col-card-price span {
      font-size: 0.75rem;
      font-weight: 300;
      color: rgba(0,0,0,0.4);
    }

    .col-card-link {
      font-size: 0.7rem;
      color: #b49a6a;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      padding: 5px 12px;
      border: 1px solid rgba(180,154,106,0.2);
      border-radius: 50px;
      transition: all 0.3s;
      text-decoration: none;
    }
    .col-card:hover .col-card-link {
      border-color: #b49a6a;
    }

    /* SPEC ELEMENTS */
    .col-spec-badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 14px;
      border: 1px solid rgba(180,154,106,0.3);
      border-radius: 50px;
      font-size: 0.65rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: #b49a6a;
      font-weight: 500;
      margin-left: auto;
      opacity: 1;
    }
    .col-spec-placeholder {
      border: 1px dashed rgba(0,0,0,0.1);
      border-radius: 16px;
      padding: 4vw;
      text-align: center;
      opacity: 1;
    }
    .col-spec-placeholder .material-icons {
      font-size: 36px;
      color: rgba(180,154,106,0.3);
      margin-bottom: 1vw;
    }
    .col-spec-placeholder p {
      font-size: clamp(0.9rem, 1vw, 1vw);
      font-weight: 300;
      color: rgba(0,0,0,0.4);
    }

    /* RESPONSIVE */
    @media (max-width: 991px) {
      .col-hero h1 { font-size: clamp(2.5rem, 6vw, 6vw); }

      .col-specs-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .col-specs-right { justify-content: flex-start; }

      .col-grid { grid-template-columns: repeat(2, 1fr); }

      .col-slider-arrow { width: 40px; height: 40px; font-size: 18px; }
    }

    @media (max-width: 767px) {
      .col-hero { height: 100vh; }
      .col-hero-content { padding-bottom: 5vh; flex-direction: column; align-items: flex-start; gap: 20px; }
      .col-hero-text { max-width: 100%; }
      .col-slider-nav { align-self: flex-start; }
      .col-slider-dot { width: 80px; height: 48px; }

      .col-specs-section { padding: 40px 20px; }
      .col-specs-grid { grid-template-columns: 1fr; gap: 0; }
      .col-spec { border-left: none; border-bottom: 1px solid rgba(180,154,106,0.1); padding: 16px 0; }

      .col-products { padding: 40px 20px; }
      .col-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }

      .col-slider-arrow { width: 36px; height: 36px; font-size: 16px; }
      .col-slider-arrow.prev { left: 12px; }
      .col-slider-arrow.next { right: 12px; }
    }

    @media (max-width: 479px) {
      .col-hero { height: 100vh; }
      .col-hero h1 { font-size: 2.2rem; }
      .col-grid { grid-template-columns: 1fr; }
    }