/* Tutorial Tips showcase — module #112 (fast gallery, no sigplus) */
/* Page chrome (#g-navigation) stays default — no full-viewport FX on #g-page-surround */

/* Hide legacy module title — hero replaces it */
.platform-content:has(.ct-tips-showcase) > h3.g-title,
.moduletable:has(.ct-tips-showcase) > h3 {
  display: none !important;
}

.ct-tips-showcase {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 3vw, 2rem) clamp(3rem, 6vw, 5rem);
}

/* Hero */
.ct-tips-hero {
  position: relative;
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 3vw, 2rem);
  border-radius: var(--ct-radius-xl);
  border: 1px solid var(--ct-color-border-soft);
  background: linear-gradient(145deg, rgba(22, 24, 32, 0.94) 0%, rgba(10, 10, 14, 0.8) 100%);
  backdrop-filter: blur(12px);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 24px 80px rgba(0, 0, 0, 0.45);
}

.ct-tips-hero__glow {
  position: absolute;
  top: -140px;
  left: 50%;
  z-index: 0;
  width: min(900px, 130%);
  height: 520px;
  transform: translateX(-50%);
  background: radial-gradient(rgba(79, 182, 207, 0.16), transparent 65%);
  animation: ct-hero-qt-glow 7s ease-in-out infinite;
  pointer-events: none;
}

@keyframes ct-hero-qt-glow {
  0%, 100% {
    opacity: 0.82;
    transform: translateX(-50%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translateX(-50%) scale(1.06);
  }
}

.ct-hero__spotlight {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 182, 207, 0.14), transparent 65%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  will-change: transform;
  transform: translate3d(-9999px, -9999px, 0);
}

.ct-tips-hero.is-hero-hover .ct-hero__spotlight {
  opacity: 1;
}

.ct-tips-hero > :not(.ct-tips-hero__glow):not(.ct-hero__spotlight) {
  position: relative;
  z-index: 2;
}

.ct-tips-hero.is-hero-hover .ct-tips-hero__eyebrow {
  border-color: rgba(79, 182, 207, 0.45);
  color: rgb(190, 195, 205);
}

.ct-tips-hero.is-hero-hover .ct-tips-hero__lead {
  color: rgb(190, 195, 205);
}

.ct-tips-hero.is-hero-hover .ct-tips-hero__chip {
  border-color: rgba(79, 182, 207, 0.32);
}

.ct-tips-hero.is-hero-hover .ct-tips-hero__chip--ghost {
  color: rgb(190, 195, 205);
  border-color: rgba(79, 182, 207, 0.28);
}

.ct-tips-hero__chip:hover {
  border-color: rgba(79, 182, 207, 0.5);
  color: rgb(231, 233, 238);
}

.ct-tips-hero__eyebrow {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1rem;
  padding: 7px 16px;
  border: 1px solid rgb(42, 46, 56);
  border-radius: 999px;
  background: rgb(21, 23, 28);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgb(163, 168, 180);
  white-space: nowrap;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.ct-tips-hero__pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ct-green);
  box-shadow: 0 0 12px var(--ct-green);
  animation: ct-tips-pulse 2.4s ease-in-out infinite;
}

@keyframes ct-tips-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

.ct-tips-hero__title {
  position: relative;
  margin: 0 0 0.75rem;
  font-family: var(--ct-font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #f2f2f4 0%, #c4c8d4 50%, #9ca3af 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ct-tips-hero__lead {
  position: relative;
  max-width: 34rem;
  margin: 0 auto 1.5rem;
  font-size: clamp(0.95rem, 2vw, 1.08rem);
  line-height: 1.6;
  color: rgb(163, 168, 180);
  transition: color 0.25s ease;
}

.ct-tips-hero__meta {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.ct-tips-hero__chip {
  display: inline-flex;
  padding: 0.35rem 0.9rem;
  border-radius: var(--ct-radius-full);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ct-color-text);
  background: var(--ct-color-accent-muted);
  border: 1px solid var(--ct-color-accent-border);
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.ct-tips-hero__chip--ghost {
  color: var(--ct-color-muted);
  background: transparent;
  border-color: var(--ct-color-border-soft);
}

.ct-tips-empty {
  text-align: center;
  color: var(--ct-color-muted);
  padding: 2rem;
}

/* Grid */
.ct-tips-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(0.85rem, 2vw, 1.25rem);
}

.ct-tips-card {
  flex: 0 0 auto;
  width: calc(25% - 1rem);
  min-width: 0;
  opacity: 0;
  transform: translateY(24px) scale(0.98);
  transition:
    opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--ct-tip-i, 0) * 40ms);
}

.ct-tips-card--visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.ct-tips-card--featured {
  width: calc(50% - 0.75rem);
}

@media (max-width: 1199px) {
  .ct-tips-card {
    width: calc(33.333% - 0.9rem);
  }
  .ct-tips-card--featured {
    width: 100%;
  }
}

@media (max-width: 767px) {
  .ct-tips-card {
    width: calc(50% - 0.65rem);
  }
}

@media (max-width: 479px) {
  .ct-tips-card {
    width: 100%;
    max-width: 360px;
  }
}

.ct-tips-card__link {
  position: relative;
  display: block;
  border-radius: calc(var(--ct-radius-lg) + 2px);
  border: 1px solid var(--ct-color-border-soft);
  background: var(--ct-color-card);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition:
    border-color var(--ct-transition),
    box-shadow var(--ct-transition),
    transform var(--ct-transition);
}

.ct-tips-card__link:hover {
  border-color: var(--ct-color-accent-border);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06) inset,
    0 16px 40px rgba(0, 0, 0, 0.4),
    0 0 32px var(--ct-color-frame-glow);
  transform: translateY(-3px);
}

.ct-tips-card--featured .ct-tips-card__link {
  border-color: rgba(138, 170, 136, 0.35);
}

.ct-tips-card__frame {
  position: relative;
  display: block;
  aspect-ratio: 1;
  overflow: hidden;
  background: #0c0c10;
}

.ct-tips-card--featured .ct-tips-card__frame {
  aspect-ratio: 16 / 10;
}

.ct-tips-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1), filter 0.35s ease;
}

.ct-tips-card__link:hover .ct-tips-card__img {
  transform: scale(1.05);
  filter: brightness(0.88);
}

.ct-tips-card__shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    transparent 40%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 60%
  );
  transform: translateX(-120%);
  transition: transform 0.7s ease;
  pointer-events: none;
}

.ct-tips-card__link:hover .ct-tips-card__shine {
  transform: translateX(120%);
}

.ct-tips-card__zoom {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.3s ease;
  background: rgba(0, 0, 0, 0.25);
}

.ct-tips-card__link:hover .ct-tips-card__zoom {
  opacity: 1;
  transform: scale(1);
}

.ct-tips-card__badge {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  z-index: 2;
  padding: 0.25rem 0.65rem;
  border-radius: var(--ct-radius-full);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #0a0c0a;
  background: linear-gradient(135deg, #b8d4b6, var(--ct-green));
  box-shadow: 0 4px 14px rgba(138, 170, 136, 0.35);
}

.ct-tips-card__num {
  position: absolute;
  right: 0.65rem;
  bottom: 0.65rem;
  z-index: 2;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: #fff;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
}

/* Lightbox */
.ct-tips-lightbox {
  position: fixed;
  inset: 0;
  z-index: 13000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.ct-tips-lightbox[hidden] {
  display: none !important;
}

html.ct-tips-lightbox-open {
  overflow: hidden;
}

.ct-tips-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 4, 8, 0.92);
  backdrop-filter: blur(10px);
}

.ct-tips-lightbox__dialog {
  position: relative;
  z-index: 1;
  width: min(920px, 100%);
  max-height: calc(100vh - 3rem);
}

.ct-tips-lightbox__stage {
  margin: 0;
  border-radius: var(--ct-radius-lg);
  border: 1px solid var(--ct-color-border);
  background: #0a0a0c;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.05) inset,
    0 28px 90px rgba(0, 0, 0, 0.65);
}

.ct-tips-lightbox__img {
  display: block;
  width: 100%;
  max-height: calc(100vh - 8rem);
  object-fit: contain;
  background: #000;
}

.ct-tips-lightbox__caption {
  padding: 0.85rem 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--ct-color-muted);
  border-top: 1px solid var(--ct-color-border-soft);
}

/* Shared glass controls (close + nav arrows) */
.ct-tips-lightbox__close,
.ct-tips-lightbox__nav {
  z-index: 2;
  width: 52px;
  height: 52px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  background:
    linear-gradient(145deg, rgba(32, 34, 42, 0.92) 0%, rgba(14, 14, 18, 0.88) 100%);
  color: #f4f4f6;
  cursor: pointer;
  backdrop-filter: blur(10px);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 8px 28px rgba(0, 0, 0, 0.45);
  transition:
    transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
    background 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    color 0.25s ease;
}

.ct-tips-lightbox__close:hover,
.ct-tips-lightbox__nav:hover {
  color: #fff;
  border-color: rgba(138, 170, 136, 0.55);
  background:
    linear-gradient(145deg, rgba(42, 48, 44, 0.95) 0%, rgba(18, 20, 22, 0.92) 100%);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08) inset,
    0 0 24px rgba(138, 170, 136, 0.22),
    0 12px 32px rgba(0, 0, 0, 0.5);
}

.ct-tips-lightbox__close:focus-visible,
.ct-tips-lightbox__nav:focus-visible {
  outline: 2px solid var(--ct-green);
  outline-offset: 3px;
}

.ct-tips-lightbox__close {
  position: absolute;
  top: -3.25rem;
  right: 0;
}

.ct-tips-lightbox__close:hover {
  transform: translateY(-2px) scale(1.04);
}

.ct-tips-lightbox__close:hover .ct-tips-lightbox__nav-icon {
  transform: rotate(90deg);
}

.ct-tips-lightbox__close:active {
  transform: translateY(0) scale(0.94);
}

.ct-tips-lightbox__nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.ct-tips-lightbox__nav-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.ct-tips-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.ct-tips-lightbox__nav--prev:hover {
  transform: translateY(-50%) translateX(-3px);
}

.ct-tips-lightbox__nav--next:hover {
  transform: translateY(-50%) translateX(3px);
}

.ct-tips-lightbox__nav--prev:hover .ct-tips-lightbox__nav-icon {
  transform: translateX(-2px);
}

.ct-tips-lightbox__nav--next:hover .ct-tips-lightbox__nav-icon {
  transform: translateX(2px);
}

.ct-tips-lightbox__nav:active {
  transform: translateY(-50%) scale(0.94);
}

.ct-tips-lightbox__nav--prev:active {
  transform: translateY(-50%) translateX(-1px) scale(0.94);
}

.ct-tips-lightbox__nav--next:active {
  transform: translateY(-50%) translateX(1px) scale(0.94);
}

.ct-tips-lightbox__nav--prev {
  left: -3.25rem;
}

.ct-tips-lightbox__nav--next {
  right: -3.25rem;
}

@media (max-width: 640px) {
  .ct-tips-lightbox__close {
    top: 0.25rem;
    right: 0.25rem;
  }
  .ct-tips-lightbox__nav--prev {
    left: 0.25rem;
  }
  .ct-tips-lightbox__nav--next {
    right: 0.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ct-hero__spotlight {
    display: none;
  }
  .ct-tips-hero__glow,
  .ct-tips-hero__pulse {
    animation: none;
  }
  .ct-tips-card {
    opacity: 1;
    transform: none;
    transition: none;
  }
}