/* ==========================================================================
   Base reset & utilities
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--sa-ink);
  background: var(--sa-bg);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--sa-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding: 0; margin: 0; list-style: none; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-display); margin: 0 0 var(--sp-3); line-height: 1.2; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0 0 var(--sp-4); color: var(--sa-ink-soft); }
button { font-family: inherit; }

/* Keyboard focus is always visible */
:focus-visible {
  outline: 2px solid var(--sa-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

.sa-container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
@media (max-width: 640px){ .sa-container{ padding-inline: var(--sp-4);} }

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

.sa-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--sa-ink);
  color: #fff;
  padding: var(--sp-3) var(--sp-4);
  z-index: 10000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.sa-skip-link:focus { left: 0; }

/* Buttons */
.sa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 11px 20px;
  font-size: 14.5px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease, transform .1s ease;
  text-decoration: none;
  line-height: 1.2;
}
.sa-btn:hover { text-decoration: none; }
.sa-btn:active { transform: translateY(1px); }
.sa-btn--primary { background: var(--sa-ink); color: #fff; }
.sa-btn--primary:hover { background: #000; }
.sa-btn--accent { background: var(--sa-accent); color: #fff; }
.sa-btn--accent:hover { background: var(--sa-accent-ink); }
.sa-btn--outline { background: transparent; color: var(--sa-ink); border-color: var(--sa-border-strong); }
.sa-btn--outline:hover { border-color: var(--sa-ink); }
.sa-btn--ghost { background: transparent; color: var(--sa-ink-soft); }
.sa-btn--ghost:hover { color: var(--sa-ink); }
.sa-btn--sm { padding: 7px 14px; font-size: 13px; }
.sa-btn--block { width: 100%; }

/* Badges / pills */
.sa-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--sa-bg-inset);
  color: var(--sa-ink-soft);
}
.sa-pill--success { background: var(--sa-success-tint); color: var(--sa-success); }
.sa-pill--warning { background: var(--sa-warning-tint); color: var(--sa-warning); }
.sa-pill--critical { background: var(--sa-critical-tint); color: var(--sa-critical); }
.sa-pill--accent { background: var(--sa-accent-tint); color: var(--sa-accent-ink); }

/* Cards */
.sa-card {
  background: var(--sa-bg);
  border: 1px solid var(--sa-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
}
.sa-card--flat { box-shadow: none; }
.sa-card--elevated { box-shadow: var(--shadow-sm); }

/* Reveal-on-scroll (paired with Intersection Observer in main.js) */
.sa-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}
.sa-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Forms */
.sa-field { margin-bottom: var(--sp-4); }
.sa-field label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: var(--sp-2);
  color: var(--sa-ink);
}
.sa-field input,
.sa-field select,
.sa-field textarea {
  width: 100%;
  padding: 10px 12px;
  font-size: 14.5px;
  font-family: inherit;
  border: 1px solid var(--sa-border-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--sa-ink);
}
.sa-field input:focus,
.sa-field select:focus,
.sa-field textarea:focus {
  border-color: var(--sa-accent);
  outline: 2px solid var(--sa-accent-tint);
}
.sa-field .sa-hint { font-size: 12.5px; color: var(--sa-ink-faint); margin-top: 4px; }
.sa-field-error { border-color: var(--sa-critical) !important; }
.sa-form-msg { padding: var(--sp-3) var(--sp-4); border-radius: var(--radius-sm); font-size: 14px; margin-bottom: var(--sp-4); }
.sa-form-msg--success { background: var(--sa-success-tint); color: var(--sa-success); }
.sa-form-msg--error { background: var(--sa-critical-tint); color: var(--sa-critical); }

.sa-section { padding-block: var(--sp-8); }
.sa-section-head { margin-bottom: var(--sp-6); }
.sa-eyebrow {
  display: block;
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--sa-accent-ink);
  margin-bottom: var(--sp-2);
}
.sa-section-head h2 { font-size: clamp(24px,3vw,32px); margin-bottom: var(--sp-2); }
.sa-section-head p { max-width: 620px; margin-bottom: 0; }
.sa-section-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--sp-5); flex-wrap: wrap; }