:root{
  /* ==== Palet warna diambil dari pigmen logo IWU ==== */
  --primary:       #af1795;   /* magenta terang - bagian atas perisai */
  --primary-mid:   #8a1288;   /* magenta pertengahan gradasi */
  --primary-dark:  #5a0e5f;   /* ungu tua - bagian bawah perisai / pita */
  --primary-deep:  #3d0a42;   /* ungu paling gelap untuk footer */
  --accent:        #f2942e;   /* oranye - garis tepi perisai & pita */
  --accent-dark:   #d97a1a;
  --bg-soft:       #faf3fa;   /* putih keunguan sangat lembut */
  --border:        #ecdcec;
  --text:          #2a1b2e;
  --text-muted:    #7a6b7e;
  --radius:        4px;
  --maxw:          1180px;
  --font: "Segoe UI", Arial, sans-serif;
}

*{box-sizing:border-box;}
body{margin:0; font-family:var(--font); color:var(--text); line-height:1.6; overflow-x:hidden;}
a{color:inherit; text-decoration:none;}
ul{list-style:none; margin:0; padding:0;}
img{max-width:100%; display:block;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px;}

/* ===== Header ===== */
.site-header{border-bottom:1px solid var(--border); background:#fff;}
.header-top{
  display:flex; align-items:center; justify-content:space-between;
  gap:20px; padding:16px 24px;
}
.logo{display:flex; align-items:center; gap:12px; flex-shrink:0;}
.logo-mark{
  width:48px; height:48px; border-radius:50%; flex-shrink:0;
  object-fit:contain; background:#fff;
}
.logo-text{
  font-size:12px; line-height:1.55; font-weight:700; color:var(--primary-dark);
  letter-spacing:.01em;
}

.header-top-right{display:flex; align-items:center; gap:14px; flex-shrink:0;}

.lang-switch{display:flex; gap:8px; flex-shrink:0;}
.lang-switch a{
  font-size:12.5px; font-weight:700; padding:4px 8px; border-radius:2px;
  color:var(--text-muted);
}
.lang-switch a.active{color:#fff; background:var(--primary-dark);}

/* Hamburger (mobile only) */
.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:38px; height:34px; background:none; border:1px solid var(--border);
  border-radius:4px; cursor:pointer; flex-shrink:0;
}
.nav-toggle span{
  display:block; height:2px; width:20px; margin:0 auto; background:var(--primary-dark);
}

nav.main-nav{background:var(--bg-soft); border-top:1px solid var(--border); border-bottom:1px solid var(--border);}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  padding:10px 24px; flex-wrap:wrap;
}
/* PENTING: rule ini HANYA untuk ul level-atas (bukan submenu), pakai child combinator (>)
   supaya tidak "menimpa" display:none milik .submenu. Ini akar penyebab bug dropdown
   yang tampil bertumpuk semua sekaligus pada versi sebelumnya. */
.nav-inner > ul{display:flex; gap:2px; flex-wrap:wrap;}
nav.main-nav li{position:relative;}
.nav-inner > ul > li > a{
  display:block; padding:10px 14px; font-weight:700; font-size:14.5px; color:var(--primary-dark);
  border-radius:2px;
}
.nav-inner > ul > li > a:hover{background:#fff; color:var(--primary);}

.submenu{
  display:none; flex-direction:column; position:absolute; top:100%; left:0; min-width:220px;
  background:#fff; border:1px solid var(--border); border-top:3px solid var(--primary);
  padding:6px 0; z-index:30; box-shadow:0 10px 24px rgba(90,14,95,.12);
}
.has-sub:hover .submenu,
.has-sub.open .submenu{display:flex;}
.submenu li{width:100%;}
.submenu li a{display:block; padding:9px 16px; font-size:13.5px; color:var(--text); white-space:nowrap;}
.submenu li a:hover{background:var(--bg-soft); color:var(--primary);}

/* Search bar - sekarang ada di baris nav, bukan sebaris dengan nama kampus */
.search-box{
  flex:0 1 260px; min-width:160px; display:flex; align-items:center;
  border:1px solid var(--border); border-radius:2px; overflow:hidden; background:#fff;
}
.search-box input{
  flex:1; min-width:0; border:none; padding:8px 12px; font-size:13.5px; outline:none; background:transparent;
}
.search-box button{
  border:none; background:transparent; padding:0 12px; color:var(--text-muted); cursor:pointer;
}

/* ===== Hero ===== */
.hero{
  position:relative; min-height:480px; display:flex; align-items:flex-end;
  padding:64px 0;
  background:
    linear-gradient(0deg, rgba(255,255,255,.12), rgba(90,14,95,.55)),
    linear-gradient(135deg, var(--primary-mid), var(--primary-deep));
  background-size:cover;
}
.hero-fade{
  position:absolute; inset:0 0 auto 0; height:40%;
  background:linear-gradient(180deg, rgba(255,255,255,.9), transparent);
}
.hero h1{
  position:relative; z-index:2;
  font-size:clamp(28px, 5vw, 58px); font-weight:800; color:#fff;
  text-shadow:0 2px 18px rgba(0,0,0,.35);
  margin:0; line-height:1.15;
}

/* ===== Tagline ===== */
.tagline{
  padding:56px 24px 40px; text-align:center; background:#fff;
}
.tagline p{
  font-size:clamp(18px, 2.6vw, 30px); font-weight:700; color:var(--primary-dark);
  margin:0; max-width:820px; margin-inline:auto;
}

/* ===== Programs ===== */
.programs{background:var(--bg-soft); padding:56px 24px;}
.programs-grid{display:grid; grid-template-columns:1fr 1fr; gap:60px;}
.program-card{border-top:4px solid var(--accent); padding-top:18px;}
.program-card h3{color:var(--primary-dark); font-size:24px; margin:0 0 14px;}
.program-card p{color:var(--text); font-size:15px;}
.program-card ol{padding-left:20px; font-size:15px;}
.program-card ol li{margin-bottom:4px;}
.card-actions{display:flex; gap:10px; margin-top:18px; flex-wrap:wrap;}
.btn{
  background:var(--primary-dark); color:#fff; font-weight:700; font-size:13.5px;
  padding:10px 20px; border-radius:3px; white-space:nowrap;
}
.btn:hover{background:var(--primary);}

/* ===== Section title with icon + lines ===== */
.section{padding:56px 24px;}
.section-title{
  display:flex; align-items:center; justify-content:center; gap:16px;
  margin:0 auto 6px; max-width:400px; color:var(--primary);
}
.section-title .line{flex:1; height:1px; background:var(--border);}
.agenda-heading{
  text-align:center; color:var(--primary-dark); font-size:26px; margin:0 0 36px;
}

/* ===== Agenda cards ===== */
.agenda-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:24px;}
.agenda-card{
  background:linear-gradient(160deg, var(--primary), var(--primary-deep));
  color:#fff; border-radius:6px; padding:26px; min-height:150px;
  display:flex; flex-direction:column; justify-content:flex-end; gap:6px;
  border-bottom:3px solid var(--accent);
}
.agenda-card .tag{font-size:12px; opacity:.85; text-transform:uppercase; letter-spacing:.04em;}
.agenda-card h4{margin:0; font-size:20px;}
.agenda-card .meta{font-size:12.5px; opacity:.8;}

/* ===== News ===== */
.news{background:var(--bg-soft);}
.news-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:24px;}
.news-card{background:#fff; border-radius:6px; overflow:hidden; border:1px solid var(--border);}
.news-thumb{
  height:170px; position:relative;
  background:linear-gradient(160deg, var(--primary), var(--primary-deep));
}
.news-thumb .badge{
  position:absolute; top:12px; right:12px; background:rgba(255,255,255,.92);
  color:var(--primary-dark); font-size:10.5px; font-weight:700; padding:4px 8px; border-radius:20px;
}
.news-body{padding:18px;}
.news-body h4{font-size:15.5px; margin:0 0 10px; color:var(--primary-dark); line-height:1.4;}
.news-body .more{color:var(--accent-dark); font-weight:700; font-size:13px;}
.news-body .divider{height:1px; background:var(--border); margin:12px 0 8px;}
.news-body .date{font-size:12.5px; color:var(--text-muted);}
.center-btn{text-align:center; margin-top:32px;}
.btn-dark{
  display:inline-block; background:var(--primary-deep); color:#fff; font-weight:700;
  font-size:13.5px; padding:11px 24px; border-radius:3px;
}
.btn-dark:hover{background:var(--primary-dark);}

/* ===== Akreditasi ===== */
.accreditation-section{padding-top:0; padding-bottom:56px;}
.accreditation-card{
  display:flex; align-items:center; gap:32px;
  background:linear-gradient(120deg, var(--primary), var(--primary-deep));
  color:#fff; border-radius:10px; padding:36px 40px;
  border-bottom:4px solid var(--accent);
}
.accreditation-doc{
  flex-shrink:0; width:88px; height:88px; border-radius:8px;
  background:rgba(255,255,255,.12); display:flex; align-items:center; justify-content:center;
}
.accreditation-doc svg{width:44px; height:44px;}
.accreditation-body h3{margin:0 0 8px; font-size:22px;}
.accreditation-body p{margin:0 0 18px; font-size:14.5px; color:#f0dcee; max-width:640px;}
.btn-outline{
  display:inline-flex; align-items:center; gap:8px;
  background:#fff; color:var(--primary-dark); font-weight:700; font-size:13.5px;
  padding:10px 22px; border-radius:3px;
}
.btn-outline:hover{background:var(--accent); color:#fff;}

/* ===== Footer ===== */
.site-footer{background:var(--primary-dark);}
.footer-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:40px; color:#f3e3f2;
  padding:48px 24px 32px; font-size:14px;
}
.footer-grid h5{color:#fff; font-size:15px; margin:0 0 14px;}
.footer-grid ul li{margin-bottom:8px;}
.footer-grid a:hover{text-decoration:underline; color:var(--accent);}

.social-strip{
  position:relative; background:var(--primary-deep); padding:40px 24px 32px;
  text-align:center; color:#e6cfe4;
}
.social-icons{display:flex; justify-content:center; gap:14px; margin-bottom:28px; flex-wrap:wrap;}
.social-icons a{
  width:38px; height:38px; border-radius:50%; background:rgba(255,255,255,.12);
  display:flex; align-items:center; justify-content:center; color:#f3e3f2;
  border:1px solid rgba(242,148,46,.4);
}
.social-icons a svg{width:18px; height:18px;}
.social-icons a:hover{background:var(--accent); border-color:var(--accent); color:#fff;}
.footer-mark{
  width:64px; height:64px; margin:0 auto 10px; border-radius:50%;
  object-fit:contain; background:#fff; padding:4px;
}
.footer-brand p{font-size:12.5px; letter-spacing:.03em; margin:0;}
.copyright{display:block; margin-top:20px; font-size:12px; color:#b78fc0;}

/* ===== Scroll reveal animation ===== */
.reveal-up{
  opacity:0; transform:translateY(40px);
  transition:opacity .6s ease, transform .6s ease;
}
.reveal-up.is-visible{opacity:1; transform:translateY(0);}

/* =========================================================
   RESPONSIVE
   ========================================================= */

/* Tablet ≤ 900px */
@media (max-width:900px){
  .programs-grid, .agenda-grid, .news-grid, .footer-grid{grid-template-columns:1fr;}
  .hero{min-height:400px;}
  .hero h1{font-size:clamp(26px, 6vw, 42px);}
}

/* Mobile nav ≤ 760px : collapse into hamburger */
@media (max-width:760px){
  .header-top{gap:12px;}
  .logo-text{font-size:10px;}
  .nav-toggle{display:flex;}

  nav.main-nav{display:none;}
  nav.main-nav.open{display:block;}
  .nav-inner{flex-direction:column; align-items:stretch; padding:12px 16px 16px;}
  .nav-inner > ul{flex-direction:column; align-items:stretch; gap:0;}
  .nav-inner > ul > li > a{
    padding:12px 8px; border-bottom:1px solid var(--border);
  }
  .search-box{order:-1; flex:1 1 auto; max-width:none; margin-bottom:10px;}
  .submenu{
    position:static; display:block; border:none; box-shadow:none;
    padding-left:14px; background:var(--bg-soft);
  }
  .has-sub .submenu{display:none;}
  .has-sub.open .submenu{display:block;}
}

/* Small phones ≤ 480px */
@media (max-width:480px){
  .wrap{padding:0 16px;}
  .hero{padding:40px 0; min-height:320px;}
  .hero h1{font-size:26px;}
  .tagline p{font-size:18px;}
  .programs, .section{padding:40px 16px;}
  .agenda-card, .news-card{min-height:auto;}
  .btn, .btn-dark{width:100%; text-align:center;}
  .card-actions{flex-direction:column;}
  .social-icons a{width:34px; height:34px;}
  .accreditation-card{flex-direction:column; text-align:center; padding:28px 20px;}
  .accreditation-body p{max-width:none;}
}