/* =============================================
   DDU PU COLLEGE — SHARED STYLES
   Used by index.html + all institute pages
   ============================================= */

*{margin:0;padding:0;box-sizing:border-box}
:root{
  --deep:#0F1C0F;
  --forest:#1B3A2D;
  --green:#234D3C;
  --emerald:#2E6B50;
  --gold:#C9A654;
  --gold-light:#E4C47A;
  --gold-pale:#F5E9C8;
  --cream:#FAF6EE;
  --white:#FFFFFF;
  --gray:#5A6672;
  --light:#EEF0E8;
  --dark-text:#0F1C0F;
}
html{scroll-behavior:smooth}
body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--cream);color:var(--dark-text);overflow-x:hidden}

/* TOPBAR */
.topbar{background:var(--deep);color:rgba(255,255,255,.6);font-size:12.5px;padding:9px 0;border-bottom:1px solid rgba(201,166,84,.15)}
.topbar-inner{max-width:1320px;margin:0 auto;padding:0 28px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.topbar a{color:var(--gold);text-decoration:none;transition:.2s}
.topbar a:hover{color:var(--gold-light)}
.topbar-contacts{display:flex;gap:24px;flex-wrap:wrap}
.topbar-contacts span{display:flex;align-items:center;gap:7px}
.topbar-contacts i{color:var(--gold);font-size:11px}
.topbar-social{display:flex;gap:8px;align-items:center}
.topbar-social span{font-size:11px;color:rgba(255,255,255,.35);margin-right:4px;letter-spacing:.5px;text-transform:uppercase}
.topbar-social a{width:26px;height:26px;border-radius:50%;background:rgba(201,166,84,.1);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:11px;transition:.3s;text-decoration:none}
.topbar-social a:hover{background:var(--gold);color:var(--deep)}

/* NAVBAR */
nav.main-nav{background:var(--white);position:sticky;top:0;z-index:1000;box-shadow:0 1px 0 rgba(0,0,0,.07),0 4px 24px rgba(0,0,0,.06)}
.nav-inner{max-width:1320px;margin:0 auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:14px;text-decoration:none}
.logo-emblem{width:54px;height:54px;background:linear-gradient(135deg,var(--forest),var(--emerald));border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 16px rgba(30,74,56,.25)}
.logo-emblem::before{content:'DDU';color:var(--gold);font-family:'Cormorant Garamond',serif;font-weight:700;font-size:13px;letter-spacing:1px}
.logo-text strong{font-family:'Cormorant Garamond',serif;font-size:20px;color:var(--forest);display:block;line-height:1.1;letter-spacing:.3px}
.logo-text span{font-size:10.5px;color:var(--gray);letter-spacing:.8px;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links>li{position:relative}
.nav-links>li>a{padding:8px 15px;border-radius:8px;text-decoration:none;font-size:13.5px;font-weight:500;color:var(--forest);transition:.25s;display:flex;align-items:center;gap:5px;white-space:nowrap}
.nav-links>li>a:hover,.nav-links>li.active>a{background:var(--forest);color:var(--gold)}
.dropdown{position:absolute;top:calc(100%+10px);left:0;background:var(--white);border:1px solid #E2E8E2;border-radius:14px;padding:8px;min-width:260px;box-shadow:0 20px 60px rgba(15,28,15,.12);opacity:0;pointer-events:none;transform:translateY(-6px);transition:.3s;z-index:999}
li:hover .dropdown{opacity:1;pointer-events:auto;transform:translateY(0)}
.dropdown a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:9px;text-decoration:none;font-size:13px;color:var(--forest);transition:.2s;font-weight:400}
.dropdown a:hover{background:var(--light);color:var(--emerald)}
.dropdown a i{width:16px;color:var(--gold);font-size:11px}
.nav-cta{background:var(--forest)!important;color:var(--gold)!important;font-weight:600!important;padding:10px 22px!important;border-radius:10px!important;letter-spacing:.2px}
.nav-cta:hover{background:var(--gold)!important;color:var(--forest)!important}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:var(--forest);border-radius:2px;transition:.3s}
.mobile-menu{display:none;position:fixed;top:76px;left:0;right:0;bottom:0;background:var(--white);overflow-y:auto;padding:24px 28px;z-index:998;border-top:2px solid var(--gold)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:13px 0;border-bottom:1px solid var(--light);font-weight:500;text-decoration:none;color:var(--forest);font-size:15px}
.mobile-menu a:hover{color:var(--gold)}

/* SECTION COMMON */
section{padding:108px 0}
.section-inner{max-width:1320px;margin:0 auto;padding:0 28px}
.section-eyebrow{font-size:11px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:var(--gold);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.section-eyebrow::before{content:'';width:32px;height:2px;background:var(--gold);border-radius:2px}
.section-title{font-family:'Cormorant Garamond',serif;font-size:clamp(30px,3.2vw,48px);color:var(--deep);margin-bottom:18px;line-height:1.15;letter-spacing:-.3px}
.section-title em{color:var(--emerald);font-style:italic}
.section-desc{font-size:15.5px;color:var(--gray);line-height:1.75;max-width:580px}
.section-hdr{margin-bottom:64px}
.section-hdr.centered{text-align:center}
.section-hdr.centered .section-eyebrow{justify-content:center}
.section-hdr.centered .section-eyebrow::before{display:none}
.section-hdr.centered .section-desc{margin:0 auto}

/* BUTTONS */
.btn-gold{background:var(--gold);color:var(--deep);padding:15px 30px;border-radius:12px;text-decoration:none;font-weight:700;font-size:14.5px;transition:.3s;display:inline-flex;align-items:center;gap:9px;letter-spacing:.2px}
.btn-gold:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 12px 30px rgba(201,166,84,.3)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.2);color:rgba(255,255,255,.8);padding:13px 28px;border-radius:12px;text-decoration:none;font-weight:500;font-size:14.5px;transition:.3s;display:inline-flex;align-items:center;gap:8px}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold);background:rgba(201,166,84,.05)}

/* TRUST BAR */
.trust-bar{background:var(--forest);padding:20px 0;border-top:1px solid rgba(201,166,84,.15);border-bottom:1px solid rgba(201,166,84,.15)}
.trust-inner{max-width:1320px;margin:0 auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.trust-item{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.6);font-size:13px}
.trust-item i{color:var(--gold);font-size:15px}
.trust-item strong{color:var(--gold-light);font-size:14px}
.trust-divider{width:1px;height:30px;background:rgba(255,255,255,.1)}

/* FOOTER */
footer{background:var(--deep);padding:80px 0 0;border-top:1px solid rgba(255,255,255,.05)}
.footer-main{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:64px}
.footer-brand-logo{display:flex;align-items:center;gap:12px;text-decoration:none;margin-bottom:18px}
.fbl-emblem{width:48px;height:48px;background:linear-gradient(135deg,var(--forest),var(--emerald));border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.fbl-emblem span{font-family:'Cormorant Garamond',serif;font-weight:700;font-size:12px;color:var(--gold);letter-spacing:1px}
.fbl-text strong{display:block;font-family:'Cormorant Garamond',serif;font-size:18px;color:var(--white)}
.fbl-text span{font-size:10.5px;color:rgba(255,255,255,.35);letter-spacing:.5px}
.footer-brand p{font-size:13px;color:rgba(255,255,255,.35);line-height:1.75;margin-bottom:22px}
.footer-social{display:flex;gap:9px}
.footer-social a{width:34px;height:34px;border-radius:50%;border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.4);font-size:13px;transition:.3s;text-decoration:none}
.footer-social a:hover{border-color:var(--gold);color:var(--gold);background:rgba(201,166,84,.1)}
footer h4{font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--gold);margin-bottom:22px}
footer ul{list-style:none}
footer ul li{margin-bottom:10px}
footer ul li a{text-decoration:none;font-size:13px;color:rgba(255,255,255,.35);transition:.3s;display:flex;align-items:center;gap:6px}
footer ul li a i{color:var(--gold);font-size:10px}
footer ul li a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:12.5px;color:rgba(255,255,255,.25)}
.footer-bottom a{color:var(--gold);text-decoration:none}
.footer-admit-badge{background:rgba(201,166,84,.08);border:1px solid rgba(201,166,84,.2);border-radius:10px;padding:14px 16px;text-align:center;margin-top:20px}
.footer-admit-badge strong{font-family:'Cormorant Garamond',serif;font-size:22px;color:var(--gold);display:block}
.footer-admit-badge span{font-size:11px;color:rgba(255,255,255,.35)}

/* TOAST */
.toast{position:fixed;bottom:28px;right:28px;background:var(--forest);color:var(--white);padding:14px 22px;border-radius:12px;font-size:14px;border-left:4px solid var(--gold);box-shadow:0 20px 40px rgba(0,0,0,.3);transform:translateY(100px);opacity:0;transition:.4s;z-index:9999;display:flex;align-items:center;gap:10px}
.toast.show{transform:translateY(0);opacity:1}
.toast i{color:var(--gold)}

/* SCROLL ANIMATE */
.reveal{opacity:0;transform:translateY(28px);transition:.7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* RESPONSIVE */
@media(max-width:768px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .trust-divider{display:none}
  .trust-inner{justify-content:center;gap:20px}
  .footer-main{grid-template-columns:1fr}
  section{padding:70px 0}
}