/* ============================================================
   KUMBA EDUCATION CENTER — Design System
   kumba.css — tokens · reset · typography · layout · components
   Brand: deep purple + vivid orange · minimalist premium · no gradients
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --purple:#5E17A6;        /* primary brand */
  --purple-deep:#360C63;   /* dark sections, headings */
  --purple-mid:#4A1189;
  --purple-soft:#F5EFFB;   /* tint surface */
  --purple-line:#E7DBF5;   /* tint hairline */
  --orange:#FF5A1F;        /* accent */
  --orange-dark:#E8480F;
  --orange-soft:#FFF1EA;

  --ink:#1C1523;           /* body text near-black */
  --muted:#6B6478;         /* secondary text */
  --bg:#FFFFFF;
  --surface:#FAF8FC;       /* alt section */
  --line:#ECE7F2;          /* hairline border */

  --radius:16px;
  --radius-lg:24px;
  --radius-pill:999px;

  --shadow-sm:0 1px 2px rgba(28,21,35,.04);
  --shadow:0 10px 30px -12px rgba(54,12,99,.18);
  --shadow-lg:0 24px 60px -20px rgba(54,12,99,.28);

  --container:1160px;
  --font-head:'Sora',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;padding:0}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* ---------- Typography ---------- */
h1,h2,h3,h4{font-family:var(--font-head);color:var(--purple-deep);line-height:1.15;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:700}
h2{font-size:clamp(1.6rem,3vw,2.35rem)}
h3{font-size:1.18rem;font-weight:600}
h4{font-size:.95rem;font-weight:600;letter-spacing:0}
p{color:var(--muted)}
strong{color:var(--ink)}

.eyebrow{
  display:inline-block;
  font-family:var(--font-body);
  font-size:.76rem;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--orange);
  margin-bottom:.9rem;
}

/* ---------- Layout ---------- */
.container{width:min(100% - 2.5rem,var(--container));margin-inline:auto}
.section{padding-block:clamp(3.5rem,7vw,6rem)}
.section--alt{background:var(--surface)}
.section--purple{background:var(--purple-deep);color:#fff}
.section--purple h2,.section--purple h3{color:#fff}
.section--purple p{color:rgba(255,255,255,.78)}

.section-head{max-width:640px;margin-bottom:2.75rem}
.section-head--center{margin-inline:auto;text-align:center}
.section-head p{margin-top:.85rem;font-size:1.03rem}

.grid{display:grid;gap:1.5rem}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.grid--3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid--2,.grid--3{grid-template-columns:1fr}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.85rem 1.6rem;border-radius:var(--radius-pill);
  font-weight:600;font-size:.95rem;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--purple);color:#fff;box-shadow:0 8px 20px -8px rgba(94,23,166,.55)}
.btn--primary:hover{background:var(--purple-mid);box-shadow:0 12px 26px -8px rgba(94,23,166,.65)}
.btn--accent{background:var(--orange);color:#fff;box-shadow:0 8px 20px -8px rgba(255,90,31,.55)}
.btn--accent:hover{background:var(--orange-dark);box-shadow:0 12px 26px -8px rgba(255,90,31,.6)}
.btn--outline{background:transparent;color:var(--purple);border:1.5px solid var(--purple-line)}
.btn--outline:hover{border-color:var(--purple);background:var(--purple-soft)}
.btn--ghost-light{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.28)}
.btn--ghost-light:hover{background:rgba(255,255,255,.2)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header__inner{display:flex;align-items:center;gap:1.5rem;min-height:74px}
.brand{display:flex;align-items:center}
.brand img{height:46px;width:auto}
.site-header .brand img{height:44px}

nav[aria-label="Primary"]{margin-left:auto}
.site-nav{display:flex;align-items:center;gap:.35rem}
.site-nav>li>a{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.55rem .9rem;border-radius:var(--radius-pill);
  font-weight:500;font-size:.95rem;color:var(--ink);
  transition:color .15s ease,background .15s ease;
}
.site-nav>li>a:hover{color:var(--purple);background:var(--purple-soft)}
.site-nav>li>a[aria-current="page"]{color:var(--purple);font-weight:600}

.nav-item--dropdown{position:relative}
.dropdown{
  position:absolute;top:calc(100% + .5rem);left:0;
  min-width:246px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow);
  padding:.5rem;opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
}
.nav-item--dropdown:hover .dropdown,.nav-item--dropdown:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:.6rem .8rem;border-radius:9px;font-size:.92rem;font-weight:500;color:var(--ink)}
.dropdown a:hover{background:var(--purple-soft);color:var(--purple)}

.header-cta{display:flex;align-items:center}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:.5rem;margin-left:auto}
.nav-toggle span{width:24px;height:2px;background:var(--purple-deep);border-radius:2px;transition:.25s}

@media(max-width:940px){
  nav[aria-label="Primary"]{
    position:fixed;inset:74px 0 auto 0;margin:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:1rem 1.25rem 1.5rem;
    transform:translateY(-120%);transition:transform .3s ease;
    box-shadow:var(--shadow);
  }
  body.nav-open nav[aria-label="Primary"]{transform:translateY(0)}
  .site-nav{flex-direction:column;align-items:stretch;gap:.15rem}
  .site-nav>li>a{padding:.8rem .9rem;border-radius:12px}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:.2rem 0 .2rem 1rem;min-width:0}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ---------- Hero (home: split with image) ---------- */
.hero{background:var(--bg);padding-block:clamp(3rem,6vw,5.5rem);position:relative}
.hero__inner{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero__text{max-width:36rem}
.hero__text h1{font-size:clamp(1.8rem,3.2vw,2.6rem);margin-bottom:1.1rem}
.hero__text p{font-size:1.1rem;max-width:34ch;margin-bottom:1.9rem}
.hero__ctas{display:flex;flex-wrap:wrap;gap:.85rem}
.hero__media{position:relative}
.hero__media img{
  width:100%;height:clamp(320px,42vw,480px);object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
}
.hero__media::before{
  content:"";position:absolute;inset:auto -18px -18px auto;
  width:62%;height:62%;background:var(--purple-soft);
  border-radius:var(--radius-lg);z-index:-1;
}
.hero__media::after{
  content:"";position:absolute;inset:-16px auto auto -16px;
  width:78px;height:78px;border-radius:18px;
  background:var(--orange);opacity:.14;z-index:-1;
}
.hero__stats{display:flex;gap:2.2rem;margin-top:2.2rem;flex-wrap:wrap}
.hero__stat strong{display:block;font-family:var(--font-head);font-size:1.7rem;color:var(--purple);line-height:1}
.hero__stat span{font-size:.85rem;color:var(--muted)}

/* Interior page hero (compact, centered) */
.page-hero{background:var(--purple-soft);padding-block:clamp(3rem,6vw,4.75rem);text-align:center;border-bottom:1px solid var(--purple-line)}
.page-hero .container{max-width:760px}
.page-hero h1{font-size:clamp(1.8rem,3.2vw,2.6rem);margin-bottom:1rem}
.page-hero p{font-size:1.08rem;margin-inline:auto;max-width:58ch}

@media(max-width:860px){
  .hero__inner{grid-template-columns:1fr;text-align:center}
  .hero__text{max-width:none;margin-inline:auto}
  .hero__text p{margin-inline:auto}
  .hero__ctas,.hero__stats{justify-content:center}
  .hero__media{margin-top:1rem}
}

/* ---------- Cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.75rem;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--purple-line)}
.card__icon{
  width:52px;height:52px;border-radius:13px;
  display:grid;place-items:center;font-size:1.35rem;
  background:var(--purple-soft);color:var(--purple);margin-bottom:1.1rem;
}
.card h3{margin-bottom:.5rem}
.card p{font-size:.95rem;margin-bottom:0}
.card__link{
  display:inline-flex;align-items:center;gap:.4rem;margin-top:1.1rem;
  color:var(--purple);font-weight:600;font-size:.9rem;
}
.card__link i{transition:transform .18s ease}
.card:hover .card__link i{transform:translateX(3px)}

/* Programme card with image */
.pcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;height:100%;
}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--purple-line)}
.pcard__media{aspect-ratio:16/10;overflow:hidden}
.pcard__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.pcard:hover .pcard__media img{transform:scale(1.04)}
.pcard__body{padding:1.6rem;display:flex;flex-direction:column;flex:1}
.pcard__body h3{margin-bottom:.5rem}
.pcard__body p{font-size:.94rem}
.pcard__body .btn{margin-top:auto;align-self:flex-start}
.pcard__list{margin:.9rem 0 1.3rem;display:grid;gap:.5rem}
.pcard__list li{font-size:.9rem;color:var(--muted);display:flex;gap:.55rem;align-items:flex-start}
.pcard__list i{color:var(--orange);margin-top:.28rem;font-size:.8rem}

/* ---------- Chips ---------- */
.chip-group{display:flex;flex-wrap:wrap;gap:.6rem}
.chip{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.6rem 1.1rem;border-radius:var(--radius-pill);
  background:var(--purple-soft);color:var(--purple-deep);
  font-weight:500;font-size:.9rem;border:1px solid var(--purple-line);
}
.chip i{color:var(--orange)}

/* ---------- Steps ---------- */
.step{display:flex;gap:1.1rem;align-items:flex-start}
.step__badge{
  flex:none;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;font-family:var(--font-head);font-weight:700;
  background:var(--purple);color:#fff;font-size:1.05rem;
}
.step__body h3{margin-bottom:.25rem;font-size:1.05rem}
.step__body p{font-size:.92rem;margin-bottom:0}

/* ---------- Why / feature list ---------- */
.why-item{display:flex;gap:1rem;align-items:flex-start}
.why-item__icon{
  flex:none;width:46px;height:46px;border-radius:12px;
  display:grid;place-items:center;font-size:1.15rem;
  background:var(--orange-soft);color:var(--orange);
}
.why-item h3{font-size:1.02rem;margin-bottom:.2rem}
.why-item p{font-size:.92rem;margin-bottom:0}

/* ---------- Split media block ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,3.75rem);align-items:center}
.split--reverse .split__media{order:-1}
.split__media img{width:100%;height:clamp(300px,38vw,440px);object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.split__text h2{margin-bottom:1rem}
.split__text p{margin-bottom:1rem}
.split__list{display:grid;gap:.85rem;margin-top:1.4rem}
.split__list li{display:flex;gap:.75rem;align-items:flex-start;color:var(--ink);font-size:.97rem}
.split__list i{color:var(--orange);margin-top:.3rem}
@media(max-width:800px){
  .split{grid-template-columns:1fr}
  .split--reverse .split__media{order:0}
}

/* Value cards (about) */
.value{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem}
.value__icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--purple-soft);color:var(--purple);font-size:1.15rem;margin-bottom:.9rem}
.value h3{margin-bottom:.35rem;font-size:1.05rem}
.value p{font-size:.92rem;margin-bottom:0}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--purple-deep);color:#fff;border-radius:var(--radius-lg);
  padding:clamp(2.5rem,5vw,3.75rem);text-align:center;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-40px;
  width:180px;height:180px;border-radius:50%;background:var(--orange);opacity:.12;
}
.cta-band h2{color:#fff;margin-bottom:.75rem}
.cta-band p{color:rgba(255,255,255,.8);max-width:52ch;margin:0 auto 1.75rem}

/* ---------- Forms ---------- */
.form-group label{display:block;font-weight:600;font-size:.88rem;margin-bottom:.4rem;color:var(--ink)}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:.8rem 1rem;border:1px solid var(--line);border-radius:11px;
  font-family:inherit;font-size:.95rem;color:var(--ink);background:#fff;transition:border-color .15s ease,box-shadow .15s ease;
}
.form-group textarea{min-height:130px;resize:vertical}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--purple);box-shadow:0 0 0 3px var(--purple-soft);
}

/* ---------- Footer (light, premium) ---------- */
.footer{background:var(--surface);border-top:1px solid var(--line);padding-top:clamp(3rem,6vw,4.5rem)}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:2.5rem}
.footer .brand img{height:48px}
.footer h4{color:var(--purple-deep);margin-bottom:1rem;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase}
.footer__links{display:grid;gap:.6rem}
.footer__links a{color:var(--muted);font-size:.94rem;transition:color .15s ease}
.footer__links a:hover{color:var(--purple)}
.footer__contact{display:grid;gap:.7rem}
.footer__contact li{display:flex;gap:.7rem;align-items:flex-start;color:var(--muted);font-size:.94rem}
.footer__contact i{color:var(--orange);margin-top:.3rem;width:16px;text-align:center}
.footer__contact a{color:var(--muted)}
.footer__contact a:hover{color:var(--purple)}
.footer__socials{display:flex;gap:.6rem;margin-top:1.1rem}
.footer__socials a{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:var(--purple-soft);color:var(--purple);transition:background .15s ease,color .15s ease,transform .15s ease;
}
.footer__socials a:hover{background:var(--purple);color:#fff;transform:translateY(-2px)}
.footer__bar{margin-top:clamp(2.5rem,5vw,3.5rem);border-top:1px solid var(--line);padding-block:1.4rem}
.footer__bar p{font-size:.86rem;color:var(--muted);text-align:center;margin:0}
@media(max-width:820px){.footer__grid{grid-template-columns:1fr 1fr;gap:2rem}}
@media(max-width:480px){.footer__grid{grid-template-columns:1fr}}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto}
}