/* ==========================================================================
   USC Search Fund — Lloyd Greif Center for Entrepreneurial Studies
   USC Marshall School of Business
   ========================================================================== */

:root{
  /* USC brand */
  --cardinal:      #990000;
  --cardinal-deep: #6d0000;
  --cardinal-tint: #fdf4f4;
  --gold:          #ffc72c;

  /* Ink */
  --ink:   #0f0f0f;
  --ink-2: #3d3d3d;
  --ink-3: #767370;
  --ink-4: #a3a09c;

  /* Ground */
  --bg:      #ffffff;
  --bg-alt:  #f7f6f3;
  --bg-deep: #141414;
  --line:    #e4e2de;
  --line-2:  #efeeea;

  --maxw: 1120px;
  --gut: clamp(1.25rem, 5vw, 3.5rem);

  --serif: "Source Serif 4", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(.4,.14,.3,1);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:5.5rem; }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-feature-settings:"kern" 1,"liga" 1;
}

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

/* --------------------------------------------------------------- layout -- */
.wrap{ max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gut); }
.wrap--narrow{ max-width:760px; }
.section{ padding-block:clamp(4.5rem,10vw,8.5rem); }
.section--tight{ padding-block:clamp(3.25rem,6vw,5.5rem); }
.section--alt{ background:var(--bg-alt); }
.rule{ height:1px; background:var(--line); border:0; margin:0; }

/* ----------------------------------------------------------- typography -- */
h1,h2,h3,h4{ font-family:var(--serif); font-weight:600; margin:0; color:var(--ink); }

.display{
  font-size:clamp(2.75rem,7.2vw,5.1rem);
  line-height:1.02;
  letter-spacing:-.025em;
  font-weight:600;
}
.h2{
  font-size:clamp(1.9rem,3.9vw,3rem);
  line-height:1.1;
  letter-spacing:-.02em;
}
.h3{
  font-size:clamp(1.25rem,2vw,1.6rem);
  line-height:1.2;
  letter-spacing:-.012em;
}
.h4{ font-size:1.0625rem; line-height:1.35; letter-spacing:-.005em; }

.eyebrow{
  font-family:var(--sans);
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cardinal);
  margin:0 0 1.1rem;
}
.eyebrow--muted{ color:var(--ink-3); }

.lede{
  font-size:clamp(1.125rem,1.7vw,1.375rem);
  line-height:1.55;
  color:var(--ink-2);
  letter-spacing:-.008em;
}
.body{ color:var(--ink-2); }
.small{ font-size:.9375rem; color:var(--ink-3); line-height:1.6; }
.tiny{ font-size:.8125rem; color:var(--ink-4); }

p{ margin:0 0 1.15em; }
p:last-child{ margin-bottom:0; }

a{ color:var(--cardinal); text-decoration:none; }
a:hover{ text-decoration:underline; text-underline-offset:3px; }

/* --------------------------------------------------------------- header -- */
.masthead{
  position:sticky; top:0; z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--line-2);
}
.masthead__inner{
  max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gut);
  height:64px; display:flex; align-items:center; justify-content:space-between; gap:1.5rem;
}
.brand{ display:flex; align-items:baseline; gap:.6rem; color:var(--ink); text-decoration:none; }
.brand:hover{ text-decoration:none; }
.brand__mark{
  font-family:var(--serif); font-weight:600; font-size:1.1875rem;
  letter-spacing:-.018em; white-space:nowrap;
}
.brand__sub{
  font-size:.6875rem; letter-spacing:.11em; text-transform:uppercase;
  color:var(--ink-4); font-weight:500; white-space:nowrap;
}
.nav{ display:flex; align-items:center; gap:clamp(1rem,2.4vw,2.1rem); }
.nav a{
  font-size:.875rem; font-weight:450; color:var(--ink-2);
  letter-spacing:-.002em; white-space:nowrap; text-decoration:none;
  transition:color .18s var(--ease);
}
.nav a:hover{ color:var(--ink); text-decoration:none; }
.nav a[aria-current="page"]{ color:var(--ink); font-weight:600; }

/* ---------------------------------------------------------- mobile menu -- */
.menu{ display:none; }
.menu__btn{
  list-style:none; cursor:pointer;
  width:40px; height:40px; margin-right:-9px;
  display:flex; align-items:center; justify-content:center;
  border-radius:9px;
}
.menu__btn::-webkit-details-marker{ display:none; }
.menu__btn:focus-visible{ outline:2px solid var(--cardinal); outline-offset:2px; }
.menu__bars, .menu__bars::before, .menu__bars::after{
  display:block; width:21px; height:1.5px; background:var(--ink); border-radius:2px;
}
.menu__bars{ position:relative; transition:background .18s var(--ease); }
.menu__bars::before{ content:""; position:absolute; top:-6.5px; transition:transform .2s var(--ease); }
.menu__bars::after{ content:""; position:absolute; top:6.5px; transition:transform .2s var(--ease); }
.menu[open] .menu__bars{ background:transparent; }
.menu[open] .menu__bars::before{ transform:translateY(6.5px) rotate(45deg); }
.menu[open] .menu__bars::after{ transform:translateY(-6.5px) rotate(-45deg); }

.menu__panel{
  position:fixed; left:0; right:0; top:64px;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 14px 34px rgba(0,0,0,.09);
  padding:.25rem var(--gut) 1.1rem;
  display:flex; flex-direction:column;
  max-height:calc(100vh - 64px); overflow-y:auto;
}
.menu__panel a{
  padding:.95rem 0; font-size:1.0625rem; color:var(--ink);
  text-decoration:none; border-bottom:1px solid var(--line-2);
}
.menu__panel a:last-child{ border-bottom:0; }
.menu__panel a[aria-current="page"]{ color:var(--cardinal); font-weight:600; }

@media (max-width:900px){
  .nav{ display:none; }
  .menu{ display:block; }
  .brand__sub{ display:none; }
}

/* --------------------------------------------------------------- button -- */
.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:var(--sans); font-size:.9375rem; font-weight:550; letter-spacing:-.004em;
  padding:.72rem 1.4rem; border-radius:999px; border:1px solid transparent;
  text-decoration:none; cursor:pointer;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.btn:hover{ text-decoration:none; transform:translateY(-1px); }
.btn--primary{ background:var(--cardinal); color:#fff; }
.btn--primary:hover{ background:var(--cardinal-deep); }
.btn--ghost{ border-color:var(--line); color:var(--ink); background:transparent; }
.btn--ghost:hover{ border-color:var(--ink-4); background:#fff; }
.btn--onDark{ border-color:rgba(255,255,255,.32); color:#fff; }
.btn--onDark:hover{ background:rgba(255,255,255,.1); border-color:rgba(255,255,255,.55); }
.btn__arrow{ font-size:1.05em; line-height:1; transition:transform .2s var(--ease); }
.btn:hover .btn__arrow{ transform:translateX(3px); }
.btn-row{ display:flex; flex-wrap:wrap; gap:.75rem; }

.link-arrow{
  display:inline-flex; align-items:center; gap:.4rem;
  font-size:.9375rem; font-weight:550; color:var(--cardinal); text-decoration:none;
}
.link-arrow:hover{ text-decoration:none; }
.link-arrow span{ transition:transform .2s var(--ease); }
.link-arrow:hover span{ transform:translateX(3px); }

/* ----------------------------------------------------------------- hero -- */
.hero{ padding-block:clamp(5rem,13vw,10rem) clamp(3.5rem,7vw,5.5rem); }
.hero__title{ max-width:16ch; }
.hero__title span{ display:block; }
.hero__lede{ max-width:60ch; margin-top:1.9rem; }
.hero__cta{ margin-top:2.6rem; }
.hero__meta{
  margin-top:clamp(3.5rem,7vw,5.5rem);
  padding-top:1.5rem; border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; gap:.5rem 2.5rem;
  font-size:.8125rem; letter-spacing:.05em; text-transform:uppercase;
  color:var(--ink-4); font-weight:500;
}

/* ---------------------------------------------------------------- grids -- */
.grid{ display:grid; gap:clamp(2rem,4vw,3.25rem); }
.grid--2{ grid-template-columns:repeat(2,1fr); }
.grid--3{ grid-template-columns:repeat(3,1fr); }
.grid--4{ grid-template-columns:repeat(4,1fr); }
.grid--split{ grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); gap:clamp(2rem,6vw,5rem); }

.stack-lg > * + *{ margin-top:clamp(2.5rem,5vw,4rem); }

/* ---------------------------------------------------------------- cards -- */
.card{ display:flex; flex-direction:column; }
.card__num{
  font-family:var(--serif); font-size:.9375rem; color:var(--cardinal);
  font-weight:600; letter-spacing:.02em; margin-bottom:.9rem;
  padding-bottom:.85rem; border-bottom:1px solid var(--line);
}
.card .h3{ margin-bottom:.65rem; }
.card p{ font-size:.9688rem; color:var(--ink-2); line-height:1.62; }

.panel{
  background:#fff; border:1px solid var(--line);
  border-radius:14px; padding:clamp(1.6rem,3vw,2.25rem);
}
.panel--alt{ background:var(--bg-alt); border-color:transparent; }
.panel--accent{ background:var(--cardinal-tint); border-color:#f3e2e2; }

/* -------------------------------------------------------------- numbers -- */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(1.5rem,3vw,2.5rem); }
.stat__fig{
  font-family:var(--serif); font-size:clamp(2.4rem,4.6vw,3.5rem);
  line-height:1; letter-spacing:-.03em; font-weight:600; color:var(--ink);
}
.stat__label{
  margin-top:.85rem; padding-top:.85rem; border-top:1px solid var(--line);
  font-size:.8125rem; line-height:1.45; color:var(--ink-3); letter-spacing:.01em;
}
.stats--onDark .stat__fig{ color:#fff; }
.stats--onDark .stat__label{ color:rgba(255,255,255,.62); border-top-color:rgba(255,255,255,.18); }

/* ----------------------------------------------------------- dark block -- */
.dark{ background:var(--bg-deep); color:#fff; }
.dark h1,.dark h2,.dark h3,.dark h4{ color:#fff; }
.dark .lede,.dark .body,.dark p{ color:rgba(255,255,255,.72); }
.dark .eyebrow{ color:var(--gold); }
.dark .small{ color:rgba(255,255,255,.55); }
.dark a{ color:#fff; }

/* --------------------------------------------------------------- ladder -- */
.ladder{ counter-reset:step; border-top:1px solid var(--line); }
.ladder__item{
  display:grid; grid-template-columns:clamp(5rem,8vw,7.75rem) minmax(0,.6fr) minmax(0,1.55fr);
  gap:clamp(1rem,3vw,2.5rem);
  padding-block:clamp(1.75rem,3.2vw,2.5rem);
  border-bottom:1px solid var(--line);
  align-items:start;
}
.ladder__step{
  font-family:var(--serif); font-size:.9375rem; font-weight:600;
  color:var(--cardinal); letter-spacing:.04em; padding-top:.35rem;
  white-space:nowrap;
}
.ladder__item p{ font-size:.9688rem; color:var(--ink-2); }

/* --------------------------------------------------------------- people -- */
.person__name{ font-family:var(--serif); font-size:1.25rem; font-weight:600; letter-spacing:-.012em; }
.person__role{ font-size:.8125rem; letter-spacing:.09em; text-transform:uppercase; color:var(--cardinal); margin-top:.4rem; font-weight:600; }
.person p{ font-size:.9375rem; color:var(--ink-2); margin-top:.9rem; }
.person__portrait{
  aspect-ratio:4/5; background:var(--bg-alt); border-radius:10px;
  margin-bottom:1.1rem; display:flex; align-items:center; justify-content:center;
  color:var(--ink-4); font-size:.75rem; letter-spacing:.1em; text-transform:uppercase;
  border:1px solid var(--line-2); overflow:hidden;
}
/* Drop an <img> straight into the slot; it fills without touching the layout. */
.person__portrait img{
  width:100%; height:100%; object-fit:cover; display:block;
}

/* ------------------------------------------------------------------ FAQ -- */
.faq{ border-top:1px solid var(--line); }
.faq details{ border-bottom:1px solid var(--line); }
.faq summary{
  list-style:none; cursor:pointer; padding-block:1.4rem;
  font-family:var(--serif); font-size:1.0625rem; font-weight:600; letter-spacing:-.008em;
  display:flex; justify-content:space-between; align-items:center; gap:2rem;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{
  content:"+"; font-family:var(--sans); font-size:1.35rem; font-weight:300;
  color:var(--ink-4); line-height:1; transition:transform .22s var(--ease);
}
.faq details[open] summary::after{ transform:rotate(45deg); }
.faq details p{ padding-bottom:1.5rem; margin:0; font-size:.9688rem; color:var(--ink-2); max-width:68ch; }

/* ---------------------------------------------------------------- lists -- */
.checklist{ list-style:none; padding:0; margin:0; }
.checklist li{
  position:relative; padding-left:1.6rem; margin-bottom:.85rem;
  font-size:.9688rem; color:var(--ink-2); line-height:1.6;
}
.checklist li::before{
  content:""; position:absolute; left:0; top:.62em;
  width:7px; height:7px; border-radius:50%; background:var(--cardinal);
}
.checklist li:last-child{ margin-bottom:0; }

.deflist{ margin:0; }
.deflist dt{
  font-family:var(--serif); font-weight:600; font-size:1.0625rem;
  padding-top:1.35rem; border-top:1px solid var(--line); margin-bottom:.4rem;
}
.deflist dd{ margin:0 0 1.35rem; font-size:.9688rem; color:var(--ink-2); }
.deflist dd:last-child{ margin-bottom:0; }

/* ------------------------------------------------------------------ CTA -- */
.cta-tri{ display:grid; grid-template-columns:repeat(3,1fr); gap:0; border-top:1px solid var(--line); }
.cta-tri__item{
  padding:clamp(2rem,3.5vw,2.75rem) clamp(1.25rem,2.5vw,2.25rem);
  border-bottom:1px solid var(--line); border-right:1px solid var(--line);
  display:flex; flex-direction:column; gap:.7rem;
  transition:background .2s var(--ease);
}
.cta-tri__item:last-child{ border-right:0; }
.cta-tri__item:hover{ background:var(--bg-alt); }
.cta-tri__item p{ font-size:.9375rem; color:var(--ink-2); flex:1; }

/* --------------------------------------------------------------- footer -- */
.footer{ background:var(--bg-alt); padding-block:clamp(3rem,5vw,4.5rem) 2.5rem; border-top:1px solid var(--line); }
.footer__top{ display:grid; grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr)); gap:2.5rem; }
.footer__brand .brand__mark{ font-size:1.25rem; }
.footer h4{
  font-family:var(--sans); font-size:.6875rem; letter-spacing:.14em;
  text-transform:uppercase; color:var(--ink-4); font-weight:600; margin-bottom:1rem;
}
.footer ul{ list-style:none; padding:0; margin:0; }
.footer li{ margin-bottom:.6rem; }
.footer li a{ font-size:.9063rem; color:var(--ink-2); }
.footer li a:hover{ color:var(--cardinal); }
.footer__bottom{
  margin-top:clamp(2.5rem,5vw,4rem); padding-top:1.5rem; border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:1rem;
}

/* ----------------------------------------------------------- responsive -- */
@media (max-width:900px){
  .grid--4{ grid-template-columns:repeat(2,1fr); }
  .grid--split{ grid-template-columns:1fr; }
  .footer__top{ grid-template-columns:1fr 1fr; }
}
@media (max-width:760px){
  body{ font-size:16px; }
  .grid--2,.grid--3{ grid-template-columns:1fr; }
  .stats{ grid-template-columns:1fr 1fr; }
  .cta-tri{ grid-template-columns:1fr; }
  .cta-tri__item{ border-right:0; }
  .ladder__item{ grid-template-columns:1fr; gap:.6rem; }
  .ladder__step{ padding-top:0; }
  .hero__meta{ gap:.4rem 1.5rem; font-size:.75rem; }
}
@media (max-width:420px){
  .display{ letter-spacing:-.02em; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}