/**
 * Project Navigation Buttons
 * --------------------------
 * Next/Previous project navigation with landing page hover effects
 */

.project-navigation {
  max-width: 1600px;
  margin: 0 auto;
  padding: 3rem clamp(5rem, 10vw, 8rem) 2.5rem;
  padding-left: calc(200px + 100px + clamp(5rem, 10vw, 8rem));
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: stretch;
}

.project-nav-card {
  position: relative;
  flex: 0 1 auto;
  max-width: 280px;
  min-width: 240px;
  min-height: 140px;
  border-radius: 1rem;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
  border: 2px solid rgba(255, 255, 255, 0.08);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  cursor: pointer;
}

.project-nav-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(248, 190, 73, 0.05) 0%,
    rgba(248, 190, 73, 0.02) 50%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
}

.project-nav-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

.project-nav-card:hover::before {
  opacity: 1;
}

/* Oracle AI specific colors */
.project-nav-card--oracle-ai {
  border-color: rgba(255, 255, 255, 0.08);
}

.project-nav-card--oracle-ai::before {
  background: linear-gradient(
    135deg,
    rgba(141, 242, 203, 0.08) 0%,
    rgba(141, 242, 203, 0.03) 50%,
    transparent 100%
  );
}

.project-nav-card--oracle-ai:hover {
  border-color: #8df2cb;
}

.project-nav-card--oracle-ai:hover .project-nav-card__arrow {
  background: rgba(141, 242, 203, 0.15);
  border-color: rgba(141, 242, 203, 0.4);
}

.project-nav-card--oracle-ai:hover .project-nav-card__arrow svg {
  stroke: #8df2cb;
}

.project-nav-card--oracle-ai:hover .project-nav-card__label {
  color: rgba(141, 242, 203, 0.8);
}

/* TuneIn specific colors */
.project-nav-card--tunein {
  border-color: rgba(255, 255, 255, 0.08);
}

.project-nav-card--tunein::before {
  background: linear-gradient(
    135deg,
    rgba(45, 33, 255, 0.08) 0%,
    rgba(45, 33, 255, 0.03) 50%,
    transparent 100%
  );
}

.project-nav-card--tunein:hover {
  border-color: #2d21ff;
}

.project-nav-card--tunein:hover .project-nav-card__arrow {
  background: rgba(45, 33, 255, 0.15);
  border-color: rgba(45, 33, 255, 0.4);
}

.project-nav-card--tunein:hover .project-nav-card__arrow svg {
  stroke: #2d21ff;
}

.project-nav-card--tunein:hover .project-nav-card__label {
  color: rgba(45, 33, 255, 0.9);
}

/* Tidbit specific colors */
.project-nav-card--tidbit {
  border-color: rgba(255, 255, 255, 0.08);
}

.project-nav-card--tidbit::before {
  background: linear-gradient(
    135deg,
    rgba(248, 190, 73, 0.08) 0%,
    rgba(248, 190, 73, 0.03) 50%,
    transparent 100%
  );
}

.project-nav-card--tidbit:hover {
  border-color: #f8be49;
}

.project-nav-card--tidbit:hover .project-nav-card__arrow {
  background: rgba(248, 190, 73, 0.15);
  border-color: rgba(248, 190, 73, 0.4);
}

.project-nav-card--tidbit:hover .project-nav-card__arrow svg {
  stroke: #f8be49;
}

.project-nav-card--tidbit:hover .project-nav-card__label {
  color: rgba(248, 190, 73, 0.85);
}

/* Oracle specific colors */
.project-nav-card--oracle {
  border-color: rgba(255, 255, 255, 0.08);
}

.project-nav-card--oracle::before {
  background: linear-gradient(
    135deg,
    rgba(240, 97, 77, 0.08) 0%,
    rgba(240, 97, 77, 0.03) 50%,
    transparent 100%
  );
}

.project-nav-card--oracle:hover {
  border-color: #f0614d;
}

.project-nav-card--oracle:hover .project-nav-card__arrow {
  background: rgba(240, 97, 77, 0.15);
  border-color: rgba(240, 97, 77, 0.4);
}

.project-nav-card--oracle:hover .project-nav-card__arrow svg {
  stroke: #f0614d;
}

.project-nav-card--oracle:hover .project-nav-card__label {
  color: rgba(240, 97, 77, 0.85);
}

.project-nav-card:focus-visible {
  outline: 2px solid #f8be49;
  outline-offset: 4px;
}

.project-nav-card__content {
  position: relative;
  z-index: 1;
}

.project-nav-card__label {
  font-family: "IBM Plex Sans JP", system-ui, sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.5rem;
  font-weight: 600;
  transition: color 0.3s ease;
}

.project-nav-card__title {
  font-family: "Hiragino Mincho ProN", "Hiragino Mincho Pro", serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 0.35rem 0;
  line-height: 1.3;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-nav-card:hover .project-nav-card__title {
  transform: translateX(3px);
}

.project-nav-card__description {
  font-family: "IBM Plex Sans JP", system-ui, sans-serif;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.5;
  margin: 0;
  transition: color 0.3s ease;
}

.project-nav-card:hover .project-nav-card__description {
  color: rgba(255, 255, 255, 0.85);
}

.project-nav-card__arrow {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
}

.project-nav-card__arrow svg {
  width: 16px;
  height: 16px;
  stroke: rgba(255, 255, 255, 0.6);
  stroke-width: 2;
  transition: all 0.3s ease;
}

.project-nav-card:hover .project-nav-card__arrow {
  transform: translate(3px, -3px) scale(1.08);
}

.project-nav-card:hover .project-nav-card__arrow svg {
  transform: translate(1px, -1px);
}

/* Responsive */
@media (max-width: 960px) {
  .project-navigation {
    padding-left: 1.5rem !important;
  }
}

@media (max-width: 768px) {
  .project-navigation {
    flex-direction: column;
    padding: 2.5rem 1.5rem 2rem;
    gap: 1.25rem;
  }

  .project-nav-card {
    max-width: 100%;
    min-width: auto;
    min-height: 130px;
    padding: 1.5rem;
  }

  .project-nav-card__arrow {
    width: 30px;
    height: 30px;
    top: 1.25rem;
    right: 1.25rem;
  }

  .project-nav-card__arrow svg {
    width: 15px;
    height: 15px;
  }

  .project-nav-card__title {
    font-size: 1.05rem;
  }

  .project-nav-card__description {
    font-size: 0.75rem;
  }
}