/* =========================================================
   Bayline Plumbing — Base styles
   Reset, typography, utility classes, reveal animation,
   reduced-motion handling. No component styles.
   ========================================================= */

/* === RESET & BASE === */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--blue-600);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--amber-500);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  z-index: 1000;
  padding: var(--sp-3) var(--sp-6);
  background: var(--amber-500);
  color: var(--navy-900);
  font-weight: 700;
  border-radius: 0 0 var(--r-btn) var(--r-btn);
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 0;
}

/* === UTILITY === */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section {
  padding-block: var(--sp-16);
}

.section--light {
  background: var(--bg-light);
}

.section--process {
  background: var(--navy-tint);
}

.section--faq {
  background: var(--bg-light);
}

.section-header {
  max-width: 640px;
  margin-bottom: var(--sp-12);
}

.section-header h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--navy-900);
  letter-spacing: -0.02em;
}

.section-header p {
  margin-top: var(--sp-4);
  color: var(--text-muted);
  font-size: 1.0625rem;
}

/* === REVEAL ANIMATION === */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

code {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.9em;
  padding: 2px 6px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--navy-900);
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}