/* ============================================================
   Components — buttons, marks, route, diagrams, form, motion
   ============================================================ */

/* ---- skip link ---------------------------------------------- */

.skip-link {
  position: absolute;
  z-index: var(--z-skip);
  top: var(--space-2);
  left: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-cobalt);
  color: var(--color-on-cobalt);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

/* ---- wordmark ------------------------------------------------ */

.wordmark {
  font-weight: var(--weight-black);
  font-size: var(--text-h3);
  letter-spacing: var(--tracking-display);
  color: var(--color-ink);
  text-decoration: none;
}

.wordmark-light {
  color: var(--color-on-cobalt);
}

.wordmark-tail {
  font-weight: var(--weight-regular);
  color: var(--color-muted);
}

.wordmark-dot {
  color: var(--color-amber-bar);
}

/* ---- nav links ------------------------------------------------ */

.nav-link {
  color: var(--color-ink);
  text-decoration: none;
  font-weight: var(--weight-medium);
}

.nav-link:hover {
  color: var(--color-cobalt);
  text-decoration: underline;
  text-underline-offset: var(--space-1);
}

/* ---- buttons --------------------------------------------------- */

.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  border: var(--border-w2) solid transparent;
  border-radius: var(--radius-md);
  font-weight: var(--weight-bold);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--dur-1) var(--ease-out),
    color var(--dur-1) var(--ease-out),
    border-color var(--dur-1) var(--ease-out);
}

.btn--primary {
  background-color: var(--color-cobalt);
  color: var(--color-on-cobalt);
}

.btn--primary:hover {
  background-color: var(--color-cobalt-deep);
}

.btn--ghost {
  border-color: var(--color-input-border);
  color: var(--color-cobalt-deep);
}

.btn--ghost:hover {
  border-color: var(--color-cobalt);
  background-color: var(--color-btn-light-hover);
}

/* ---- amber highlighter ------------------------------------------ */

.mark {
  background-color: var(--color-amber);
  color: var(--color-amber-ink);
  padding-inline: var(--space-1);
  border-radius: var(--radius-sm);
  font-weight: var(--weight-medium);
}

/* ---- on-cobalt text helpers -------------------------------------- */

.on-cobalt-muted {
  color: var(--color-on-cobalt-muted);
}

.section--cobalt :focus-visible {
  outline-color: var(--color-on-cobalt);
}

/* ---- hero route art ------------------------------------------------ */

.hero-art {
  width: 100%;
}

.flow-path {
  fill: none;
  stroke: var(--color-cobalt);
  stroke-opacity: 0.4;
  stroke-width: 2;
  stroke-linecap: round;
}

.flow-trunk {
  fill: none;
  stroke: var(--color-amber-bar);
  stroke-width: 3;
  stroke-linecap: round;
}

.flow-node {
  fill: var(--color-cobalt);
}

.flow-dest {
  fill: var(--color-amber-bar);
}

/* ---- the route (how it works) --------------------------------------- */

.step-rail {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  justify-items: center;
  gap: var(--space-2);
}

.waypoint {
  display: grid;
  place-items: center;
  width: var(--space-10);
  height: var(--space-10);
  border-radius: var(--radius-lg);
  background-color: var(--color-cobalt);
  color: var(--color-on-cobalt);
  font-weight: var(--weight-black);
}

.rail-line {
  width: var(--rail-w);
  background-color: var(--color-cobalt-line);
  border-radius: var(--radius-sm);
}

.step:last-child .rail-line {
  background-color: transparent;
}

.step-title {
  margin-top: var(--space-1);
}

.step-kind {
  font-size: var(--text-small);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: var(--weight-bold);
}

/* ---- scenario diagrams ------------------------------------------------ */

.scenario-name {
  margin-top: 0;
  font-size: var(--text-h2);
  letter-spacing: var(--tracking-display);
}

.scenario-task {
  color: var(--color-muted);
  font-weight: var(--weight-medium);
}

.diagram {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-8);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
}

.meter-row {
  display: grid;
  gap: var(--space-2);
}

.meter-label {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-small);
  font-weight: var(--weight-bold);
}

.meter-hours {
  color: var(--color-muted);
  font-weight: var(--weight-medium);
}

.meter {
  height: var(--space-5);
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: var(--radius-sm);
}

.meter-fill--before {
  width: var(--fill-full);
  background-color: var(--color-cobalt);
}

.meter-fill--after {
  background-color: var(--color-amber-bar);
}

.meter-fill--clinic {
  width: var(--fill-clinic);
}

.meter-fill--shop {
  width: var(--fill-shop);
}

.meter-fill--firm {
  width: var(--fill-firm);
}

.freed {
  font-weight: var(--weight-black);
  color: var(--color-amber-ink);
  margin-bottom: 0;
}

/* ---- services ----------------------------------------------------------- */

.service-name {
  margin-top: 0;
  font-size: var(--text-h2);
  letter-spacing: var(--tracking-display);
}

.service-role {
  font-weight: var(--weight-bold);
  color: var(--color-on-cobalt);
}

/* ---- contact form --------------------------------------------------------- */

.form {
  display: grid;
  gap: var(--space-6);
}

.form[hidden] {
  display: none;
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field label {
  font-weight: var(--weight-bold);
}

.field input,
.field textarea {
  padding: var(--space-3) var(--space-4);
  border: var(--border-w) solid var(--color-input-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  width: 100%;
}

.field input:focus-visible,
.field textarea:focus-visible {
  outline: var(--border-w2) solid var(--color-cobalt);
  outline-offset: 0;
  border-color: var(--color-cobalt);
}

.field textarea {
  resize: vertical;
  min-height: var(--space-32);
}

.field [aria-invalid="true"] {
  border-color: var(--color-error);
}

.field-msg {
  color: var(--color-error);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  margin-bottom: 0;
}

.form-note {
  color: var(--color-muted);
  font-size: var(--text-small);
  margin-bottom: 0;
}

.form-success {
  padding: var(--space-8);
  background-color: var(--color-success-surface);
  border: var(--border-w) solid var(--color-success);
  border-radius: var(--radius-lg);
}

.form-success h3 {
  margin-top: 0;
  color: var(--color-success);
}

/* ---- footer ------------------------------------------------------------------ */

.foot-link {
  color: var(--color-on-cobalt-muted);
  text-decoration: none;
}

.foot-link:hover {
  color: var(--color-on-cobalt);
  text-decoration: underline;
  text-underline-offset: var(--space-1);
}

.foot-note {
  color: var(--color-on-cobalt-muted);
  font-size: var(--text-small);
  margin-top: var(--space-8);
  margin-bottom: 0;
}

/* ============================================================
   Motion — all animation lives behind no-preference.
   Reduced motion gets the finished state, instantly.
   ============================================================ */

@media (prefers-reduced-motion: no-preference) {
  /* hero entrance */
  @keyframes rise-in {
    from {
      opacity: 0;
      translate: 0 var(--rise);
    }

    to {
      opacity: 1;
      translate: 0 0;
    }
  }

  .hero-title {
    animation: rise-in var(--dur-3) var(--ease-out) both;
  }

  .hero-copy > * {
    animation: rise-in var(--dur-3) var(--ease-out) both;
    animation-delay: var(--dur-1);
  }

  .hero-copy > :nth-child(2) {
    animation-delay: var(--dur-2);
  }

  /* hero route draw */
  @keyframes draw {
    from {
      stroke-dashoffset: 1;
    }

    to {
      stroke-dashoffset: 0;
    }
  }

  @keyframes node-in {
    from {
      opacity: 0;
    }

    to {
      opacity: 1;
    }
  }

  .flow-path,
  .flow-trunk {
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    animation: draw var(--dur-4) var(--ease-out) forwards;
  }

  .flow-trunk {
    animation-delay: var(--dur-3);
  }

  .flow-node,
  .flow-dest {
    opacity: 0;
    animation: node-in var(--dur-2) var(--ease-out) forwards;
  }

  .flow-dest {
    animation-delay: var(--dur-4);
  }

  /* scroll reveals — hidden only when JS is present, so no-JS
     and reduced-motion both get fully visible content */
  .js [data-reveal] {
    opacity: 0;
    translate: 0 var(--rise);
    transition: opacity var(--dur-3) var(--ease-out),
      translate var(--dur-3) var(--ease-out);
  }

  .js .is-in {
    opacity: 1;
    translate: 0 0;
  }

  /* diagram bars grow once their scenario is revealed */
  .js .meter-fill {
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur-4) var(--ease-out) var(--dur-2);
  }

  .is-in .meter-fill {
    transform: scaleX(1);
  }
}