/* ================================================================
   STACKFLOWSHOP — improvements.css
   Visual upgrade layer — imports after styles.css
   Adds: announcement bar, hero grid/glow, marquee, CSS animations,
         premium product cards, hover fx, noise texture, entrance anims
   ================================================================ */

/* ── ANNOUNCEMENT BAR ── */
.announcement-bar {
  position: relative;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  height: 38px;
  display: flex;
  align-items: center;
}
.announcement-bar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
}
.ann-content {
  display: flex;
  align-items: center;
  gap: 28px;
  white-space: nowrap;
  animation: annScroll 28s linear infinite;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--sub);
  padding-left: 100%;
}
.ann-content strong { color: var(--text); }
.ann-dot {
  display: inline-block;
  width: 4px; height: 4px;
  background: var(--red);
  border-radius: 50%;
  flex-shrink: 0;
}
.ann-close {
  position: absolute;
  right: 12px;
  top: 50%; transform: translateY(-50%);
  font-size: 10px;
  color: var(--muted);
  background: transparent;
  padding: 4px 6px;
  z-index: 2;
}
.ann-close:hover { color: var(--text); }
@keyframes annScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── HERO BACKGROUND UPGRADE ── */
.hero {
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}
.hero-bg-glow {
  position: absolute;
  top: -120px; left: -80px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(230,57,70,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-bg-glow-2 {
  position: absolute;
  bottom: -60px; right: 80px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(124,92,252,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
}

/* ── HERO ENTRANCE ANIMATION ── */
.hero-kicker  { animation: fadeUp 0.6s var(--ease) both; animation-delay: 0.05s; }
.hero-title   { animation: fadeUp 0.7s var(--ease) both; animation-delay: 0.15s; }
.hero-desc    { animation: fadeUp 0.7s var(--ease) both; animation-delay: 0.25s; }
.hero-ctas    { animation: fadeUp 0.7s var(--ease) both; animation-delay: 0.35s; }
.hero-metrics { animation: fadeUp 0.7s var(--ease) both; animation-delay: 0.45s; }
.hero-visual  { animation: fadeRight 0.8s var(--ease) both; animation-delay: 0.3s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── HERO CTA BUTTON UPGRADE ── */
.btn-cta-fill {
  position: relative;
  overflow: hidden;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 0 rgba(230,57,70,0);
}
.btn-cta-fill:hover {
  background: var(--red) !important;
  box-shadow: 0 4px 24px rgba(230,57,70,0.35);
}
.btn-cta-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  transform: translateX(-110%) skewX(-15deg);
  transition: transform 0.4s var(--ease);
}
.btn-cta-fill:hover::after {
  transform: translateX(110%) skewX(-15deg);
}

.btn-cta-ghost {
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn-cta-ghost:hover {
  background: var(--faint) !important;
}

/* ── HERO SHOWCASE CARD UPGRADE ── */
.hero-showcase {
  position: relative;
  width: 380px;
  height: 440px;
}
.hs-card {
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: 16px;
  padding: 20px;
  width: 200px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.hs-card:hover {
  transform: translateY(-4px) rotate(0deg) !important;
  box-shadow: 0 16px 48px rgba(0,0,0,0.6);
  z-index: 10 !important;
}
.hs-card:nth-child(1) { top: 0;   left: 0;   transform: rotate(-4deg); z-index: 1; }
.hs-card:nth-child(2) { top: 55px; left: 88px; z-index: 3; box-shadow: 0 8px 32px rgba(0,0,0,0.5); }
.hs-card:nth-child(3) { top: 120px; left: 176px; transform: rotate(3.5deg); z-index: 2; }

/* Replace emoji with styled product visual */
.hs-visual {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 32px;
  position: relative;
  overflow: hidden;
}
.hs-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.12;
}
.hs-visual i {
  position: relative;
  z-index: 1;
  font-size: 30px;
}

/* Card type variants */
.hs-card--shoes .hs-visual {
  background: linear-gradient(135deg, #1a1218, #1e1420);
  color: #e63946;
}
.hs-card--shoes .hs-visual::before {
  background: radial-gradient(circle at 30% 30%, #e63946, transparent);
}
.hs-card--shoes {
  border-color: rgba(230,57,70,0.15);
}

.hs-card--audio .hs-visual {
  background: linear-gradient(135deg, #101624, #141a28);
  color: #7c5cfc;
}
.hs-card--audio .hs-visual::before {
  background: radial-gradient(circle at 30% 30%, #7c5cfc, transparent);
}
.hs-card--audio {
  border-color: rgba(124,92,252,0.2);
  box-shadow: 0 0 32px rgba(124,92,252,0.06);
}

.hs-card--beauty .hs-visual {
  background: linear-gradient(135deg, #0e1a18, #121e1c);
  color: #2dd4aa;
}
.hs-card--beauty .hs-visual::before {
  background: radial-gradient(circle at 30% 30%, #2dd4aa, transparent);
}
.hs-card--beauty {
  border-color: rgba(45,212,170,0.15);
}

/* Remove old emoji style */
.hs-emoji { display: none; }

/* ── PRODUCT RATING UPGRADE ── */
.hs-rating {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 4px;
  font-size: 9px;
}
.hs-rating-stars { color: var(--gold); letter-spacing: -1px; font-size: 9px; }
.hs-rating-count { color: var(--muted); font-weight: 600; }

/* ── MARQUEE STRIP ── */
.marquee-strip {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  height: 42px;
  overflow: hidden;
  position: relative;
}
.marquee-strip::before,
.marquee-strip::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
}
.marquee-strip::before { left: 0;  background: linear-gradient(90deg, var(--surface), transparent); }
.marquee-strip::after  { right: 0; background: linear-gradient(-90deg, var(--surface), transparent); }

.marquee-track {
  display: flex;
  align-items: center;
  height: 100%;
  overflow: hidden;
}
.marquee-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
}
.marquee-inner:hover { animation-play-state: paused; }
.marquee-inner span { flex-shrink: 0; }
.m-dot {
  color: var(--red);
  font-size: 8px;
}
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ── CATEGORY CARD UPGRADE ── */
.category-card {
  transition: border-color 0.2s, background 0.2s, transform 0.2s var(--ease);
  cursor: pointer;
}
.category-card:hover {
  border-color: var(--border3) !important;
  background: var(--card2) !important;
  transform: translateY(-2px);
}
.category-card.active {
  background: var(--red) !important;
  border-color: var(--red) !important;
  box-shadow: 0 4px 20px rgba(230,57,70,0.2);
}
.category-icon { transition: color 0.2s; }
.category-card:hover .category-icon { color: var(--text); }

/* ── PRODUCT CARD UPGRADE ── */
.product-card {
  transition: border-color 0.2s, transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.product-card:hover {
  border-color: var(--border3) !important;
  transform: translateY(-4px) !important;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5) !important;
}

/* Wishlist button on product card */
.btn-wish {
  width: 34px; height: 34px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 12px;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.btn-wish:hover {
  background: rgba(230,57,70,0.08);
  border-color: var(--red);
  color: var(--red);
}

/* ── SECTION REVEAL ANIMATIONS ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── SECTION TITLE UPGRADE ── */
.section-title {
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0;
  width: 32px; height: 2px;
  background: var(--red);
}

/* ── FOOTER UPGRADE ── */
footer {
  position: relative;
}
.footer-brand p {
  line-height: 1.8;
}
.footer-social {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.fsocial-btn {
  width: 32px; height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 12px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.fsocial-btn:hover {
  border-color: var(--red);
  color: var(--red);
  background: var(--red-dim);
}
.fbadge {
  transition: border-color 0.2s, color 0.2s;
}
.fbadge:hover {
  border-color: var(--border3);
  color: var(--sub);
}

/* SSL badge gets green accent */
.fbadge-ssl { border-color: rgba(45,212,170,0.3); color: var(--green); }

/* ── BACK-TO-TOP BUTTON ── */
.back-to-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 40px; height: 40px;
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 14px;
  z-index: 800;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s, background 0.2s, color 0.2s, border-color 0.2s;
  cursor: pointer;
}
.back-to-top.visible {
  opacity: 1; pointer-events: auto;
}
.back-to-top:hover {
  background: var(--red); color: #fff; border-color: var(--red);
}

/* ── LOADING SHIMMER FOR PRODUCT CARDS ── */
@keyframes shimmer {
  0%   { background-position: -800px 0; }
  100% { background-position: 800px 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--card) 25%, var(--card2) 50%, var(--card) 75%);
  background-size: 800px 100%;
  animation: shimmer 1.6s infinite;
  border-radius: var(--r-sm);
}

/* ── HERO METRICS COUNTER ANIMATION ── */
.hero-metric-val {
  display: inline-block;
  transition: transform 0.3s var(--ease);
}
.hero-metrics:hover .hero-metric-val {
  transform: scale(1.04);
}

/* ── CART BUTTON PULSE ── */
.cart-btn.has-items {
  animation: cartPulse 2s ease infinite;
}
@keyframes cartPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(230,57,70,0.4); }
  50%       { box-shadow: 0 0 0 6px rgba(230,57,70,0); }
}

/* ── TOAST UPGRADE ── */
.toast {
  background: var(--card) !important;
  border: 1px solid var(--border2) !important;
  border-left: 3px solid var(--red) !important;
  border-radius: var(--r-md) !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5) !important;
}

/* ── MOBILE RESPONSIVENESS FIXES ── */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr !important;
  }
  .hero-visual {
    display: none;
  }
  .announcement-bar {
    height: 34px;
    font-size: 9px;
  }
  .marquee-inner {
    font-size: 9px;
    gap: 20px;
  }
  .hero-title {
    font-size: clamp(44px, 12vw, 72px) !important;
  }
}

/* ── SCROLLBAR UPGRADE ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-thumb { background: var(--border3); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }