/*
 * base.css
 * Reset, body defaults, typography, scrollbar, animations.
 * Light airy UCD theme.
 */

/* Skip navigation link — visually hidden until focused (WCAG 2.4.1) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  z-index: 9999;
  padding: 10px 18px;
  background: var(--accent, #1A5276);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  border-radius: 0 0 6px 0;
  text-decoration: none;
  transition: top .15s;
}
.skip-link:focus {
  top: 0;
}


/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Scrollbar ── */
::-webkit-scrollbar         { width: 8px; height: 8px; }
::-webkit-scrollbar-track   { background: var(--bg2); }
::-webkit-scrollbar-thumb   { background: var(--surface3); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Focus ── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r);
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .02em;
  color: var(--ink);
}

/* ── Selection ── */
::selection { background: var(--accent-l); color: var(--accent2); }

button { font-family: var(--font-sans); }
input, select, textarea { font-family: var(--font-sans); }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(18px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes floatSlow {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
@keyframes pulseRing {
  0%   { box-shadow: 0 0 0 0 rgba(43,127,212,.35); }
  70%  { box-shadow: 0 0 0 14px rgba(43,127,212,0); }
  100% { box-shadow: 0 0 0 0 rgba(43,127,212,0); }
}

/* ── Utility ── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.fade-in    { animation: fadeUp 0.3s ease forwards; }
.full-w     { width: 100%; }
.text-mono  { font-family: var(--font-mono); }
.text-accent{ color: var(--accent); }
.text-green { color: var(--green); }
.text-muted { color: var(--ink3); }

/* Reveal-on-scroll helper (CSS-only, triggered by class) */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}


/* UCD logo responsive header fix */
.hdr-left{
    display:flex !important;
    align-items:center !important;
    gap:18px !important;
}

.hdr-logo,
.hdr-logo-wrapper{
    background:none !important;
    border:none !important;
    box-shadow:none !important;
    padding:0 !important;
    margin:0 !important;
    width:auto !important;
    height:auto !important;
    min-width:auto !important;
}

.hdr-logo-img{
    display:block !important;
    width:auto !important;
    height:clamp(50px, 7vh, 80px) !important;
    max-width:none !important;
    object-fit:contain !important;
    object-position:center center !important;
    flex-shrink:0 !important;
}

.hdr-left > div:last-child{
    flex:1 !important;
    min-width:0 !important;
}