/* ==========================================================================
   GirafPingvin — Merch (stand-by)
   3D animated character showcase + personal note
   ========================================================================== */

/* ── Section + 2-column grid ───────────────────────────────── */
.merch-section {
  padding: 2.5rem 0 4rem;
}

.merch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.merch-col--info {
  min-width: 0;
}

.merch-col--stage {
  display: flex;
  justify-content: center;
}

.merch-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-accent) 30%, transparent);
  color: color-mix(in srgb, var(--color-accent) 80%, var(--color-text));
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: 1rem;
}

.merch-status__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-accent) 60%, transparent);
  animation: merch-pulse 2s ease-in-out infinite;
}

@keyframes merch-pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-accent) 55%, transparent); }
  50%      { box-shadow: 0 0 0 7px color-mix(in srgb, var(--color-accent) 0%, transparent); }
}

.merch-hero__title {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-heading);
  font-size: clamp(2.4rem, 7vw, 4rem);
  line-height: 1.05;
  margin: 0 0 0.5rem;
  background: linear-gradient(120deg, var(--color-primary), var(--color-accent) 55%, var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.merch-hero__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 460px;
  margin: 0 auto 0.5rem;
}

/* ── 3D Stage ─────────────────────────────────────────────────────── */
.merch-stage {
  position: relative;
  width: min(420px, 82vw);
  height: min(420px, 82vw);
  margin: 1.5rem auto 0.5rem;
  perspective: 1200px;
  perspective-origin: 50% 45%;
}

/* Soft radial glow behind the deck */
.merch-stage__glow {
  position: absolute;
  inset: 8% 8% 4%;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%,
              color-mix(in srgb, var(--color-primary) 38%, transparent) 0%,
              color-mix(in srgb, var(--color-accent) 18%, transparent) 45%,
              transparent 72%);
  filter: blur(18px);
  z-index: 0;
  animation: merch-glow 6s ease-in-out infinite;
}

@keyframes merch-glow {
  0%, 100% { transform: scale(1);    opacity: 0.85; }
  50%      { transform: scale(1.08); opacity: 1; }
}

.merch-deck {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  z-index: 1;
}

/* Each slide sits stacked; only .is-active is shown front & center */
.merch-slide {
  position: absolute;
  inset: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: rotateY(75deg) translateZ(-120px) scale(0.8);
  transform-origin: 50% 50%;
  transition:
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    opacity   0.55s ease,
    visibility 0s linear 0.7s;
  will-change: transform, opacity;
  backface-visibility: hidden;
}

.merch-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: rotateY(0deg) translateZ(0) scale(1);
  transition:
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    opacity   0.55s ease,
    visibility 0s;
  z-index: 2;
}

/* Directional enter/leave variants for a real 3D flip feel */
.merch-slide.is-entering-right { transform: rotateY(-80deg) translateZ(-140px) translateX(40%) scale(0.78); }
.merch-slide.is-entering-left  { transform: rotateY(80deg)  translateZ(-140px) translateX(-40%) scale(0.78); }
.merch-slide.is-leaving-left   { opacity: 0; transform: rotateY(80deg)  translateZ(-140px) translateX(-40%) scale(0.78); }
.merch-slide.is-leaving-right  { opacity: 0; transform: rotateY(-80deg) translateZ(-140px) translateX(40%) scale(0.78); }

.merch-slide__img {
  width: 86%;
  height: auto;
  max-height: 78%;
  object-fit: contain;
  filter: drop-shadow(0 18px 28px rgba(0, 0, 0, 0.18));
  animation: merch-float 4.5s ease-in-out infinite;
}

@keyframes merch-float {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50%      { transform: translateY(-12px) rotate(1.5deg); }
}

.merch-slide__caption {
  position: absolute;
  bottom: -0.25rem;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  background: var(--color-surface);
  padding: 0.25rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid color-mix(in srgb, var(--color-primary) 22%, transparent);
}

/* ── Stand-by stamp ───────────────────────────────────────────────── */
.merch-stamp {
  position: absolute;
  top: 6%;
  right: 2%;
  z-index: 5;
  transform: rotate(11deg);
  pointer-events: none;
  animation: merch-stamp-in 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.4s both;
}

.merch-stamp__inner {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(0.9rem, 3.2vw, 1.3rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 0.45rem 1rem;
  border: 3px solid var(--color-accent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-surface-solid));
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

@keyframes merch-stamp-in {
  0%   { opacity: 0; transform: rotate(11deg) scale(2.2); }
  60%  { opacity: 1; }
  100% { opacity: 1; transform: rotate(11deg) scale(1); }
}

/* ── Personal note ────────────────────────────────────────────────── */
.merch-note {
  position: relative;
  background: var(--color-surface);
  border: 1px solid color-mix(in srgb, var(--color-primary) 18%, transparent);
  border-radius: var(--radius-card);
  padding: 2.25rem 1.75rem 1.75rem;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.06);
}

.merch-note__wave {
  font-size: 2.5rem;
  line-height: 1;
  display: inline-block;
  transform-origin: 70% 70%;
  animation: merch-wave 2.6s ease-in-out infinite;
}
@keyframes merch-wave {
  0%, 60%, 100% { transform: rotate(0deg); }
  10%, 30% { transform: rotate(14deg); }
  20%, 40% { transform: rotate(-8deg); }
}

.merch-note__greeting {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-heading);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin: 0.5rem 0 1.25rem;
  color: var(--color-text);
}

.merch-note__body {
  max-width: 560px;
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--color-text);
}

.merch-note__body p { margin: 0 0 1rem; }
.merch-note__body p:last-child { margin-bottom: 0; }
.merch-note__body strong { color: var(--color-link); }

.merch-note__sign {
  margin: 1.5rem 0 0;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-primary);
}

/* ── CTA ──────────────────────────────────────────────────────────── */
.merch-cta {

  margin-top: 1.5rem;
}

.merch-cta__text {
  font-size: 0.98rem;
  color: var(--color-text-muted);
}

.merch-cta__text a {
  color: var(--color-link);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Dark mode tweaks ─────────────────────────────────────────────── */
[data-mode="dark"] .merch-slide__img {
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.45));
}

[data-mode="dark"] .merch-note,
[data-mode="dark"] .merch-slide__caption {
  background: color-mix(in srgb, var(--color-surface-solid) 70%, transparent);
}

/* ── Reduced motion ───────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .merch-status__dot,
  .merch-stage__glow,
  .merch-slide__img,
  .merch-note__wave,
  .merch-stamp { animation: none; }

  .merch-slide {
    transition: opacity 0.3s ease, visibility 0s linear 0.3s;
    transform: none;
  }
  .merch-slide.is-active { transform: none; transition: opacity 0.3s ease; }
  .merch-slide.is-entering-right,
  .merch-slide.is-entering-left,
  .merch-slide.is-leaving-left,
  .merch-slide.is-leaving-right { transform: none; }
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .merch-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .merch-col--stage { order: -1; }
  .merch-col--info { text-align: center; }
  .merch-note__body { margin: 0 auto; text-align: left; }
}

@media (max-width: 600px) {
  .merch-section { padding-top: 1.5rem; }
  .merch-slide__caption { font-size: 0.72rem; }
}