/* ============================================================
   PRODUCTS PAGE — INTERACTIVE REVAMP
   ============================================================ */

/* ---- SCROLL PROGRESS ---- */
.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 200;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--copper), var(--aqua));
  transition: width 0.1s linear;
  pointer-events: none;
}

/* ---- HERO ---- */
.prod-hero { position: relative; overflow: hidden; isolation: isolate; }
.prod-hero-bg {
  position: absolute; inset: -10% -5% -10% -5%;
  background:
    linear-gradient(135deg, rgba(6,28,41,0.9) 0%, rgba(10,46,66,0.78) 55%, rgba(29,77,106,0.6) 100%),
    url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
  z-index: -1; will-change: transform; transform: scale(1.15);
}
.prod-hero { background: var(--primary-dark); }

/* hero headline animation */
.prod-h1 { display: flex; flex-direction: column; gap: 4px; }
.ph-line {
  display: block;
  opacity: 0; transform: translateY(50px) skewY(2deg);
  transition: opacity 1s cubic-bezier(0.22,1,0.36,1), transform 1.1s cubic-bezier(0.22,1,0.36,1);
}
.ph-line.in { opacity: 1; transform: translateY(0) skewY(0); }

/* hero chips */
.prod-hero-chips {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px;
  opacity: 0; animation: fadeUp 0.8s 1.1s var(--ease-out) forwards;
}
.prod-hero-chips span {
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.85); font-size: 12px; letter-spacing: 1.5px;
  text-transform: uppercase; font-weight: 500;
  padding: 8px 18px; border-radius: 50px;
  backdrop-filter: blur(8px);
  transition: background 0.4s ease, border-color 0.4s ease;
}
.prod-hero-chips span:hover { background: rgba(255,255,255,0.18); border-color: var(--aqua); }

@keyframes fadeUp {
  from { opacity:0; transform: translateY(20px); }
  to   { opacity:1; transform: translateY(0); }
}

/* hero scroll cue */
.hero-scroll-cue {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  width: 22px; height: 36px; border: 1px solid rgba(255,255,255,0.4);
  border-radius: 16px; display: flex; justify-content: center; padding-top: 6px;
  z-index: 1;
}
.hero-scroll-cue span {
  width: 3px; height: 7px; background: var(--aqua); border-radius: 2px;
  animation: scrollCue 1.8s ease-in-out infinite;
}
@keyframes scrollCue {
  0%  { transform: translateY(0); opacity:1; }
  60% { transform: translateY(14px); opacity:0; }
  100%{ transform: translateY(0); opacity:0; }
}

/* ---- SECTION INTRO ---- */
.products-main { background: var(--foam); }
.prod-intro {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 40px; align-items: end;
  margin-bottom: 48px;
}
.prod-intro h2 {
  font-size: clamp(30px, 3.8vw, 50px);
  letter-spacing: -0.02em; margin-top: 12px;
}
.prod-intro h2 em { font-style: italic; color: var(--copper); font-weight: 400; }
.prod-intro > p {
  color: var(--muted); font-size: 16px; line-height: 1.75;
  max-width: 460px; align-self: end;
}

/* ---- FILTER BAR ---- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 40px;
}
.filter-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--line);
  color: var(--primary); font-family: inherit;
  font-size: 13px; font-weight: 500; letter-spacing: 0.5px;
  padding: 11px 22px; border-radius: 50px;
  cursor: pointer; transition: all 0.4s var(--ease-out);
}
.filter-btn:hover { border-color: var(--copper); color: var(--copper); }
.filter-btn.active {
  background: var(--primary); border-color: var(--primary);
  color: #fff; box-shadow: var(--shadow);
}
.fcount {
  background: rgba(255,255,255,0.15);
  font-size: 11px; font-weight: 600;
  padding: 2px 8px; border-radius: 50px; letter-spacing: 0;
}
.filter-btn:not(.active) .fcount { background: var(--foam); color: var(--muted); }

/* ---- PRODUCT GRID ---- */
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

/* ---- PRODUCT CARD ---- */
.product-card {
  position: relative; border-radius: var(--radius-lg);
  overflow: hidden; cursor: pointer;
  height: 480px;
  transition: transform 0.55s var(--ease-out), box-shadow 0.55s ease, opacity 0.4s ease;
  transition-delay: var(--card-delay, 0s);
  box-shadow: 0 4px 20px rgba(10,46,66,0.08);
}
.product-card:hover { transform: translateY(-8px) scale(1.01); box-shadow: var(--shadow-lg); }

/* Image layer */
.pc-image {
  position: absolute; inset: 0;
}
.pc-image img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.9s cubic-bezier(0.22,1,0.36,1);
}
.product-card:hover .pc-image img { transform: scale(1.08); }
/* Dark gradient over image */
.pc-image::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(6,28,41,0.95) 0%, rgba(6,28,41,0.5) 45%, rgba(6,28,41,0.1) 100%);
  transition: background 0.55s ease;
}
.product-card:hover .pc-image::after {
  background: linear-gradient(to top, rgba(6,28,41,0.98) 0%, rgba(6,28,41,0.75) 55%, rgba(6,28,41,0.2) 100%);
}

/* Badge */
.pc-num {
  position: absolute; top: 18px; left: 18px; z-index: 3;
  font-family: 'Playfair Display', serif; font-size: 14px; font-weight: 500;
  background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.25);
  color: #fff; backdrop-filter: blur(8px);
  width: 42px; height: 42px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: 0.5px;
}
/* Tag */
.pc-tag {
  position: absolute; top: 18px; right: 18px; z-index: 3;
  background: var(--copper); color: #fff;
  font-size: 10px; letter-spacing: 2px; text-transform: uppercase; font-weight: 600;
  padding: 5px 14px; border-radius: 50px;
}

/* ---- BASE INFO (always visible at bottom) ---- */
.pc-base {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 3;
  padding: 28px 28px 26px;
  transform: translateY(0);
  transition: transform 0.5s var(--ease-out), opacity 0.4s ease;
}
.pc-base small {
  display: block; font-size: 10.5px; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--aqua); font-weight: 500; margin-bottom: 6px;
}
.pc-base h3 { color: #fff; font-size: 24px; font-weight: 500; letter-spacing: -0.01em; }

/* ---- HOVER PANEL (slides up) ---- */
.pc-hover {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 4;
  padding: 28px 28px 32px;
  display: flex; flex-direction: column; gap: 10px;
  transform: translateY(100%);
  transition: transform 0.55s var(--ease-out);
}
.product-card:hover .pc-hover { transform: translateY(0); }
.product-card:hover .pc-base  { opacity: 0; pointer-events: none; }

.pc-hover small {
  font-size: 10.5px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--aqua); font-weight: 500;
}
.pc-hover h3 { color: #fff; font-size: 22px; font-weight: 500; letter-spacing: -0.01em; }
.pc-hover p { color: rgba(255,255,255,0.78); font-size: 13.5px; line-height: 1.65; }

.pc-specs {
  list-style: none; padding: 0; margin: 4px 0 6px;
  display: flex; flex-direction: column; gap: 5px;
}
.pc-specs li {
  font-size: 12px; color: rgba(255,255,255,0.65);
  padding-left: 14px; position: relative; letter-spacing: 0.3px;
}
.pc-specs li::before {
  content: '—'; position: absolute; left: 0; color: var(--copper); font-size: 10px;
}

.pc-cta { align-self: flex-start; margin-top: 6px; }

/* ---- FILTER HIDE/SHOW ---- */
.prod-hidden { display: none !important; }
.filter-in { animation: filterIn 0.5s var(--ease-out) var(--card-delay, 0s) both; }
@keyframes filterIn {
  from { opacity:0; transform: scale(0.95) translateY(20px); }
  to   { opacity:1; transform: scale(1) translateY(0); }
}

/* empty state */
.no-results {
  text-align: center; padding: 60px 0;
  color: var(--muted); font-size: 16px;
}

/* ---- FEATURED STRIP ---- */
.featured-strip {
  background: var(--primary); padding: 18px 0;
  overflow: hidden; white-space: nowrap;
}
.featured-track {
  display: inline-flex; gap: 0;
  animation: marqueeFwd 28s linear infinite;
  will-change: transform;
}
.featured-track span {
  display: inline-flex; align-items: center; gap: 18px;
  font-size: 12px; letter-spacing: 2.5px; text-transform: uppercase;
  font-weight: 500; color: rgba(255,255,255,0.6);
  padding: 0 18px;
  transition: color 0.3s ease;
}
.featured-track span:hover { color: var(--aqua); }
.featured-track em {
  font-style: normal; color: var(--copper);
  font-size: 6px; flex-shrink: 0;
}
@keyframes marqueeFwd {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---- SPECS SECTION ---- */
.specs-section { background: #fff; }
.spec-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }

.spec-card {
  background: var(--foam);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 30px 32px;
  position: relative; overflow: hidden;
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s ease, border-color 0.5s ease;
  transition-delay: calc(var(--spec-i, 0) * 0.07s);
}
.spec-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--copper), var(--aqua));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.6s var(--ease-out);
}
.spec-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.spec-card:hover::before { transform: scaleX(1); }

.spec-icon {
  font-size: 28px; color: var(--copper);
  margin-bottom: 10px; display: block;
  transition: transform 0.5s var(--ease-out);
}
.spec-card:hover .spec-icon { transform: scale(1.2) rotate(-5deg); }

.spec-num {
  display: block; font-family: 'Playfair Display', serif;
  font-size: 13px; color: var(--muted); font-weight: 400;
  letter-spacing: 2px; margin-bottom: 8px;
}
.spec-card h3 { font-size: 20px; margin-bottom: 10px; font-weight: 500; letter-spacing: -0.01em; }
.spec-card p { color: var(--muted); font-size: 14px; line-height: 1.65; margin-bottom: 20px; }

/* animated bar */
.spec-bar {
  height: 3px; background: var(--line); border-radius: 2px; overflow: hidden;
}
.spec-bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--copper), var(--aqua));
  border-radius: 2px;
  transition: width 1.2s var(--ease-out);
  transition-delay: calc(var(--spec-i, 0) * 0.1s);
}
.spec-bar-fill.active { width: 100%; }

/* ---- CTA ---- */
.cta-banner { background-size: cover; background-position: center; color: #fff; padding: 110px 0; }
.cta-inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 50px; flex-wrap: wrap; }
.cta-banner h2 { color: #fff; font-size: clamp(30px,4vw,46px); font-weight: 400; line-height: 1.15; letter-spacing: -0.015em; margin-top: 16px; }
.cta-inner p { color: rgba(255,255,255,0.78); max-width: 520px; margin-top: 18px; font-size: 16px; line-height: 1.65; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2,1fr); }
  .spec-grid    { grid-template-columns: repeat(2,1fr); }
  .prod-intro   { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 768px) {
  .prod-hero h1 { font-size: clamp(28px, 8vw, 44px); }
  .prod-hero-chips span { font-size: 10.5px; padding: 7px 14px; }
  .filter-bar { gap: 6px; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 4px; scrollbar-width: none; }
  .filter-bar::-webkit-scrollbar { display: none; }
  .filter-btn { flex: 0 0 auto; padding: 10px 18px; font-size: 12.5px; }
  .product-card { height: 400px; }
  .spec-card { padding: 28px 24px 26px; }
  .cta-banner { padding: 80px 0; }
  .cta-inner { flex-direction: column; align-items: flex-start; gap: 32px; }
}

/* Touch devices — always show card info (no hover) */
@media (hover: none) {
  .product-card { height: auto; display: flex; flex-direction: column; }
  .pc-image {
    position: relative; height: 240px; flex-shrink: 0;
  }
  .pc-image::after {
    background: linear-gradient(to top, rgba(6,28,41,0.5) 0%, transparent 60%);
  }
  .pc-base { position: relative; padding: 20px 22px 0; }
  .pc-base small { color: var(--copper); }
  .pc-base h3 { color: var(--primary); font-size: 20px; }
  .pc-hover {
    position: relative; transform: none;
    padding: 12px 22px 26px;
    background: #fff;
  }
  .pc-hover small { color: var(--copper); }
  .pc-hover h3 { display: none; }
  .pc-hover p { color: var(--muted); }
  .pc-specs li { color: var(--muted); }
  .pc-specs li::before { color: var(--copper); }
  .pc-cta { background: var(--primary) !important; border-color: var(--primary) !important; color: #fff !important; }
  .product-card:hover { transform: none; box-shadow: none; }
  .product-card:hover .pc-image img { transform: none; }
  .product-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
  .pc-num { position: absolute; }
  .pc-tag { position: absolute; }
}

@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
  .spec-grid    { grid-template-columns: 1fr; }
  .spec-card { padding: 26px 22px; }
  .prod-hero-chips { gap: 8px; }
}