/* ==========================================================================
   ULC — Base stylesheet
   Design tokens + component classes. Plain CSS (no @apply) so this file works
   with a compiled Tailwind build, the Play CDN, or on its own.

   PALETTE — taken from the university crest.
   Two of the five brand colours cannot legibly carry text on a dark ground:
     #8B0000 maroon  2.1:1 on black  -> surface only
     #8B4513 brown   3.0:1 on black  -> borders and fills only
   Each therefore has a text-safe partner below: gold sits on maroon fills, and
   --ulc-brown-soft (7.4:1) carries brown-toned text. The crest colours are
   used exactly as specified wherever they appear as surfaces.
   ========================================================================== */

:root {
  /* Surfaces - warm near-blacks, tinted toward the crest maroon */
  --ulc-black:    #000000;   /* page background */
  --ulc-obsidian: #0B0708;   /* raised sections */
  --ulc-ink:      #16090B;   /* cards, inputs, drop-zones */
  --ulc-line:     #2E1A1C;   /* hairline borders */

  /* Brand */
  --ulc-maroon:      #8B0000;   /* crest field - surface only */
  --ulc-maroon-lift: #A81212;   /* maroon hover */
  --ulc-gold:        #FFD700;   /* crest gold - primary accent */
  --ulc-gold-soft:   #FFE566;   /* gold hover */
  --ulc-brown:       #8B4513;   /* giraffe - structural */
  --ulc-brown-soft:  #CD8B4C;   /* text-safe brown, 7.4:1 on black */

  /* Type */
  --ulc-white: #FFFFFF;
  --ulc-body:  #ECE3E1;   /* warm off-white, 16:1 on black */
  --ulc-muted: #9A8B8C;   /* captions, 6.4:1 on black */

  /* Rhythm */
  --ulc-radius:    0.75rem;
  --ulc-radius-sm: 0.375rem;
  --ulc-ease:      cubic-bezier(0.22, 1, 0.36, 1);
}

/* --------------------------------------------------------------------------
   1 - Base
   -------------------------------------------------------------------------- */
html { color-scheme: dark; scroll-behavior: smooth; }

body {
  background-color: var(--ulc-black);
  color: var(--ulc-body);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--ulc-gold); color: var(--ulc-black); }

:focus-visible {
  outline: 2px solid var(--ulc-gold);
  outline-offset: 2px;
  border-radius: 2px;
}

[hidden] { display: none !important; }

img { max-width: 100%; height: auto; }

/* --------------------------------------------------------------------------
   2 - Typographic utilities
   -------------------------------------------------------------------------- */
.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ulc-gold);
}
.eyebrow--brown { color: var(--ulc-brown-soft); }

.prose-abstract p { margin-bottom: 1rem; line-height: 1.75; }
.prose-abstract p:last-child { margin-bottom: 0; }

.rule-gold {
  width: 3.5rem;
  height: 3px;
  background-color: var(--ulc-gold);
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   3 - Buttons
   -------------------------------------------------------------------------- */
.btn-gold,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--ulc-radius-sm);
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  line-height: 1.25;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  cursor: pointer;
}

.btn-gold {
  background-color: var(--ulc-gold);
  color: var(--ulc-black);
  border: 1px solid var(--ulc-gold);
}
.btn-gold:hover { background-color: var(--ulc-gold-soft); border-color: var(--ulc-gold-soft); }

.btn-ghost {
  background-color: transparent;
  border: 1px solid var(--ulc-line);
  color: var(--ulc-body);
}
.btn-ghost:hover { border-color: var(--ulc-gold); color: var(--ulc-gold); }

.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }

/* --------------------------------------------------------------------------
   4 - Forms
   -------------------------------------------------------------------------- */
.field-label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ulc-white);
}
.field-req { color: var(--ulc-gold); }

.field-input {
  width: 100%;
  border-radius: var(--ulc-radius-sm);
  background-color: var(--ulc-ink);
  border: 1px solid var(--ulc-line);
  padding: 0.75rem 1rem;
  color: var(--ulc-body);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.field-input::placeholder { color: var(--ulc-muted); }
.field-input:focus {
  outline: none;
  border-color: var(--ulc-gold);
  box-shadow: 0 0 0 1px var(--ulc-gold);
}
.field-input--brown:focus { border-color: var(--ulc-brown-soft); box-shadow: 0 0 0 1px var(--ulc-brown-soft); }
.field-input.is-invalid { border-color: #FF6B6B; }

.field-error {
  display: none;
  margin-top: 0.375rem;
  font-size: 0.875rem;
  color: #FF8A8A;
}
.field-error.is-visible { display: block; }

.choice-card {
  display: flex;
  gap: 0.875rem;
  border-radius: 0.5rem;
  border: 1px solid var(--ulc-line);
  background-color: var(--ulc-ink);
  padding: 0.875rem 1rem;
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}
.choice-card:hover { border-color: var(--ulc-gold); }
.choice-card:has(input:checked) {
  border-color: var(--ulc-gold);
  background-color: rgba(255, 215, 0, 0.08);
}
/* Fallback for browsers without :has() - JS mirrors the state onto the class */
.choice-card.is-selected {
  border-color: var(--ulc-gold);
  background-color: rgba(255, 215, 0, 0.08);
}
.choice-card input { accent-color: var(--ulc-gold); }

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 0.5rem;
  border: 2px dashed var(--ulc-line);
  background-color: var(--ulc-ink);
  padding: 2rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}
.dropzone:hover,
.dropzone.is-dragover {
  border-color: var(--ulc-gold);
  background-color: rgba(255, 215, 0, 0.08);
}
.dz-filename { font-size: 0.875rem; font-weight: 600; color: var(--ulc-gold); }

/* --------------------------------------------------------------------------
   5 - Wizard
   -------------------------------------------------------------------------- */
.step-panel { display: none; }
.step-panel.is-active { display: block; animation: ulc-fade-up 0.35s var(--ulc-ease) both; }

.step-dot {
  flex: 1 1 0%;
  border-radius: 9999px;
  background-color: var(--ulc-ink);
  color: var(--ulc-muted);
  padding: 0.25rem 0.5rem;
  text-align: center;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: background-color 0.25s ease, color 0.25s ease;
}
.step-dot.is-done { background-color: var(--ulc-gold); color: var(--ulc-black); }

@keyframes ulc-fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   6 - Rector welcome
   -------------------------------------------------------------------------- */
.rector-ribbon {
  background-color: var(--ulc-maroon);
  color: var(--ulc-white);
}
.rector-ribbon a { color: var(--ulc-gold); text-decoration: underline; text-underline-offset: 3px; }
.rector-ribbon a:hover { color: var(--ulc-white); }

.rector-band {
  background-image: linear-gradient(155deg, var(--ulc-maroon) 0%, #3A0000 42%, var(--ulc-black) 100%);
}

.rector-portrait {
  display: block;
  width: 100%;
  border-radius: var(--ulc-radius);
  border: 1px solid rgba(255, 215, 0, 0.35);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.75);
}

.rector-quote p { margin-bottom: 1.15rem; line-height: 1.8; }
.rector-quote p:last-child { margin-bottom: 0; }

.rector-signature { font-weight: 800; color: var(--ulc-gold); }

/* --------------------------------------------------------------------------
   7 - Research hub
   -------------------------------------------------------------------------- */
.tag-chip {
  border-radius: 9999px;
  border: 1px solid var(--ulc-line);
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
  color: var(--ulc-body);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}
.tag-chip:hover { border-color: var(--ulc-brown-soft); color: var(--ulc-brown-soft); }
.tag-chip[aria-pressed="true"] {
  border-color: var(--ulc-brown-soft);
  background-color: rgba(139, 69, 19, 0.3);
  color: var(--ulc-brown-soft);
}

.project-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--ulc-radius);
  border: 1px solid var(--ulc-line);
  background-color: var(--ulc-obsidian);
  padding: 1.25rem;
  transition: border-color 0.18s ease, transform 0.18s var(--ulc-ease);
}
.project-card:hover { border-color: var(--ulc-brown-soft); transform: translateY(-2px); }

.tag-pill {
  display: inline-flex;
  width: fit-content;
  border-radius: 9999px;
  background-color: rgba(139, 69, 19, 0.32);
  color: var(--ulc-brown-soft);
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.875rem;
}
.meta-row dt { color: var(--ulc-muted); }
.meta-row dd { text-align: right; font-weight: 500; color: var(--ulc-body); }

.link-accent {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ulc-gold);
  transition: color 0.18s ease;
}
.link-accent:hover { color: var(--ulc-white); }

/* --------------------------------------------------------------------------
   8 - Fundraising
   -------------------------------------------------------------------------- */
.tier-btn {
  border-radius: var(--ulc-radius-sm);
  border: 1px solid var(--ulc-line);
  background-color: var(--ulc-ink);
  padding: 0.75rem 1rem;
  text-align: center;
  font-weight: 600;
  color: var(--ulc-body);
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}
.tier-btn:hover { border-color: var(--ulc-gold); }
.tier-btn[aria-pressed="true"] {
  border-color: var(--ulc-gold);
  background-color: rgba(255, 215, 0, 0.12);
  color: var(--ulc-gold);
}

.fund-track {
  height: 0.75rem;
  width: 100%;
  overflow: hidden;
  border-radius: 9999px;
  background-color: var(--ulc-ink);
}
.fund-bar {
  height: 100%;
  width: 0%;
  border-radius: 9999px;
  /* Maroon into gold - the crest read left to right */
  background-image: linear-gradient(90deg, var(--ulc-maroon), var(--ulc-gold));
  transition: width 1.4s var(--ulc-ease);
}

/* --------------------------------------------------------------------------
   9 - Language switch
   -------------------------------------------------------------------------- */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--ulc-line);
  border-radius: 9999px;
  padding: 2px;
  background-color: var(--ulc-ink);
}
.lang-switch button,
.lang-switch a {
  border: 0;
  background: transparent;
  border-radius: 9999px;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ulc-muted);
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease;
}
.lang-switch button:hover,
.lang-switch a:hover { color: var(--ulc-body); }
.lang-switch button[aria-pressed="true"],
.lang-switch a[aria-current="page"] {
  background-color: var(--ulc-gold);
  color: var(--ulc-black);
}

/* --------------------------------------------------------------------------
   10 - Brand mark
   -------------------------------------------------------------------------- */
.brand-mark {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   11 - Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .step-panel.is-active { animation: none; }
  .fund-bar { transition: none; }
  .project-card:hover { transform: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}