.ui-functions-section {
  padding: 100px var(--page-padding);
  background: var(--color-white);
}

.ui-functions-container {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 100px;
}

.ui-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 88px;
  flex-wrap: wrap;
}

.ui-header-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.ui-label {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 24px;
  line-height: 1.57;
  color: var(--color-orange);
}

.ui-title-wrapper {
  position: relative;
  display: inline-flex;
  flex-direction: column;
}

.ui-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1.2;
  color: var(--color-black);
  margin: 0;
}

.ui-title-accent {
  position: relative;
  display: inline-block;
}

.ui-title-accent::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 16px;
  background: url('../assets/images/ui-title-underline.svg') center bottom / contain no-repeat;
}

.ui-description {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.36;
  color: var(--color-black);
  max-width: 483px;
}

.ui-cards {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  width: 100%;
  min-height: 520px;
}

.ui-card {
  position: relative;
  grid-column: span 1;
  border-radius: 32px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  min-height: 520px;
  transition: grid-column 0.5s ease, opacity 0.35s ease, transform 0.35s ease;
  filter: drop-shadow(0 24px 60px rgba(0, 0, 0, 0.25));
  opacity: 0.5;
  cursor: pointer;
}

.ui-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.8) 100%);
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.ui-card.expanded {
  grid-column: span 3;
  opacity: 1;
  transform: translateY(-12px);
  background-size: 120%;
}

.ui-card.expanded::after {
  opacity: 0.4;
}

.ui-card-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 40px;
  background: var(--color-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, opacity 0.2s ease;
  border: none;
  z-index: 1;
}

.ui-card-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-white);
  stroke-width: 2.8;
  transition: transform 0.25s ease;
}

.ui-card-toggle:hover {
  transform: scale(1.05);
  background: #d55a33;
}

.ui-card.expanded .ui-card-toggle {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
}

.ui-card.expanded .ui-card-toggle svg {
  transform: rotate(45deg);
}

.ui-card-content {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 24px;
  z-index: 1;
}

.ui-card-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(22px, 2.2vw, 32px);
  line-height: 1.3;
  color: var(--color-white);
  margin: 0;
}

.ui-card-title span {
  display: inline;
  font-weight: 700;
}

.ui-card-desc {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.36;
  color: var(--color-white);
  max-width: 455px;
  margin: 0;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.3s ease, max-height 0.3s ease;
}

.ui-card.expanded .ui-card-desc {
  opacity: 1;
  max-height: 220px;
}

.ui-card-magic {
  background: linear-gradient(186deg, rgba(238, 112, 34, 0) 54%, rgba(0, 0, 0, 1) 92%),
              linear-gradient(-1deg, rgba(238, 112, 34, 0) 68%, rgba(0, 0, 0, 1) 97%),
              url('../assets/images/webp/ui-magic-doodle.webp') center/cover;
}

.ui-card-adventure {
  background: linear-gradient(207deg, rgba(238, 112, 34, 0) 43%, rgba(0, 0, 0, 1) 83%),
              linear-gradient(-4deg, rgba(238, 112, 34, 0) 68%, rgba(0, 0, 0, 1) 90%),
              url('../assets/images/webp/ui-photo-adventure.webp') center/cover;
}

.ui-card-chat {
  background: linear-gradient(217deg, rgba(0, 0, 0, 0) 58%, rgba(0, 0, 0, 1) 85%),
              linear-gradient(-22deg, rgba(0, 0, 0, 0) 68%, rgba(0, 0, 0, 1) 92%),
              url('../assets/images/webp/ui-chat-planet.webp') center/cover;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .ui-cards {
    flex-direction: column;
    min-height: unset;
  }

  .ui-card,
  .ui-card.expanded {
    flex: 1;
    min-height: 420px;
    transform: none;
  }

  .ui-card-toggle {
    opacity: 1 !important;
    pointer-events: auto !important;
  }
}

@media (max-width: 768px) {
  .ui-functions-section {
    padding: 80px var(--page-padding);
  }

  .ui-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }

  .ui-cards {
    gap: 24px;
  }

  .ui-card {
    padding: 28px 24px;
  }
}

@media (max-width: 480px) {
  .ui-card {
    padding: 24px 20px;
    min-height: 360px;
  }

  .ui-card-toggle {
    width: 44px;
    height: 44px;
  }
}