/* SPICIA: restrained interaction cues. No library or additional JavaScript.
 * References: Motion Prompt #081 (hover lift), #086 (underline).
 * Implementation is adapted to the existing SPICIA layout and colours.
 */

/* Focus remains clear even without hover, animation, or JavaScript. */
.service-card:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
  background: var(--paper);
}
.nav-links a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 6px;
  color: #fff;
}

/* #086: the line is absolutely positioned, so text never shifts. */
.nav-links a::after {
  content: "";
  position: absolute;
  inset: auto 0 -6px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  pointer-events: none;
}
.nav-links a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Touch devices keep stable targets. Hover is an optional enhancement. */
@media (hover: hover) and (pointer: fine) {
  .nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .nav-links a::after {
    transition: transform 180ms var(--ease);
  }
}

/* #081: 2px / 3px rather than the reference's 10px; no looping motion. */
@media (hover: hover) and (pointer: fine) and (prefers-reduced-motion: no-preference) {
  .hero-action {
    transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
  }
  .hero-action:hover,
  .hero-action:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(5, 12, 25, .18);
  }
  .service-card {
    transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), background 220ms var(--ease);
  }
  .service-card:hover,
  .service-card:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 5px 14px rgba(16, 37, 71, .09);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-action,
  .service-card,
  .nav-links a::after {
    transition: none;
  }
}