/* ==========================================================================
   Stanford × SAABR — Component primitives
   ========================================================================== */

/* ---------- Site lockup (Stanford wordmark + unit name) ---------- */
.lockup {
  display: inline-flex;
  align-items: stretch;
  gap: 14px;
  color: var(--ink-primary);
  text-decoration: none;
}
.lockup__wordmark {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 26px;
  line-height: 1;
  color: var(--c-cardinal);
  letter-spacing: -0.01em;
  padding-right: 14px;
  border-right: 1px solid var(--c-cool-grey);
  align-self: center;
}
.lockup__unit {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
}
.lockup__line1 { font-family: var(--f-sans); font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-cool-grey); }
.lockup__line2 { font-family: var(--f-sans); font-size: 18px; font-weight: 400; color: var(--ink-primary); line-height: 1.1; letter-spacing: -0.005em; }

.lockup--lg .lockup__wordmark { font-size: 40px; padding-right: 20px; }
.lockup--lg .lockup__line2 { font-size: 26px; }
.lockup--lg .lockup__line1 { font-size: 13px; }

.lockup--on-dark .lockup__wordmark { color: var(--c-white); border-right-color: rgba(255,255,255,0.55); }
.lockup--on-dark .lockup__line1 { color: rgba(255,255,255,0.7); }
.lockup--on-dark .lockup__line2 { color: var(--c-white); }

/* ---------- Brand bar (top thin red bar present on every Stanford site) ---------- */
.brand-bar {
  background: var(--c-black);
  color: var(--c-white);
  padding: 8px var(--gutter);
  font-family: var(--f-sans);
  font-size: 13px;
}
.brand-bar a {
  color: var(--c-white);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.brand-bar a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-sans);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 12px 22px;
  border-radius: var(--r-1);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--d-fast) var(--ease-out),
              color var(--d-fast) var(--ease-out),
              border-color var(--d-fast) var(--ease-out),
              transform var(--d-fast) var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--c-cardinal); color: var(--c-white); }
.btn--primary:hover { background: var(--c-cardinal-dark); }

.btn--secondary {
  background: transparent;
  color: var(--c-cardinal);
  border-color: var(--c-cardinal);
}
.btn--secondary:hover { background: var(--c-cardinal); color: var(--c-white); }

.btn--ghost { background: transparent; color: var(--ink-primary); border-color: var(--rule-strong); }
.btn--ghost:hover { background: var(--ink-primary); color: var(--c-white); border-color: var(--ink-primary); }

.btn--on-dark.btn--secondary { color: var(--c-white); border-color: var(--c-white); }
.btn--on-dark.btn--secondary:hover { background: var(--c-white); color: var(--c-cardinal); }

.btn--lg { padding: 16px 28px; font-size: 16px; }
.btn--sm { padding: 8px 14px; font-size: 13px; }

.btn .arrow { transition: transform var(--d-base) var(--ease-out); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Eyebrow rule (cardinal accent) ---------- */
.eyebrow-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-cardinal);
}
.eyebrow-mark::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--c-cardinal);
}
.eyebrow-mark--on-dark { color: var(--c-white); }
.eyebrow-mark--on-dark::before { background: var(--c-cardinal-bright); }

/* ---------- Tag / chip ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: var(--c-fog);
  color: var(--c-grey-90);
}
.tag--cardinal { background: rgba(140,21,21,0.08); color: var(--c-cardinal); }
.tag--palo { background: rgba(23,94,84,0.10); color: var(--c-palo-alto); }
.tag--ink { background: var(--c-black); color: var(--c-white); }

/* ---------- Card ---------- */
.card {
  background: var(--bg-page);
  border: 1px solid var(--rule-hairline);
  border-radius: var(--r-1);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--d-base) var(--ease-out), transform var(--d-base) var(--ease-out);
}
.card:hover { border-color: var(--rule-strong); }
.card__kicker { color: var(--c-cardinal); }
.card__title { font-family: var(--f-sans); font-size: 22px; font-weight: 600; line-height: 1.2; letter-spacing: -0.01em; }
.card__body { color: var(--ink-secondary); font-size: 16px; line-height: 1.55; }

/* ---------- Stat block ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px 0;
  border-top: 1px solid var(--rule-strong);
}
.stat__num {
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(48px, 5.5vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--c-cardinal);
}
.stat__label { font-family: var(--f-sans); font-size: 14px; color: var(--ink-secondary); line-height: 1.4; }

/* ---------- Quote / pullquote ---------- */
.pullquote {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(24px, 2.4vw, 36px);
  line-height: 1.3;
  color: var(--c-grey-90);
  position: relative;
  padding-left: 28px;
  border-left: 3px solid var(--c-cardinal);
  max-width: 56ch;
}
.pullquote__source {
  display: block;
  margin-top: 14px;
  font-family: var(--f-sans);
  font-style: normal;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-cool-grey);
}

/* ---------- Section header ---------- */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 720px;
  margin-bottom: 40px;
}

/* ---------- Form fields ---------- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field__label { font-family: var(--f-sans); font-size: 13px; font-weight: 600; color: var(--c-grey-90); letter-spacing: 0.02em; }
.field__hint  { font-family: var(--f-sans); font-size: 12px; color: var(--ink-tertiary); }
.input, .select, .textarea {
  font-family: var(--f-sans);
  font-size: 16px;
  color: var(--ink-primary);
  background: var(--bg-page);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-1);
  padding: 12px 14px;
  width: 100%;
  transition: border-color var(--d-fast) var(--ease-out), box-shadow var(--d-fast) var(--ease-out);
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--c-cardinal);
  box-shadow: 0 0 0 3px rgba(140,21,21,0.18);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--c-black);
  color: var(--c-white);
  padding: 64px var(--gutter) 32px;
  font-family: var(--f-sans);
}
.site-footer a { color: var(--c-white); text-decoration: none; opacity: 0.85; }
.site-footer a:hover { opacity: 1; text-decoration: underline; text-underline-offset: 3px; }