:root{--esn-cyan:#00a3e0;--esn-magenta:#ec008c;--esn-green:#7ac143;--esn-orange:#f7941d;--esn-dark-blue:#1b3a57;--esn-white:#ffffff;--esn-gray-50:#f6f8fa;--esn-gray-100:#eef2f5;--esn-gray-200:#d7e0e8;--esn-gray-700:#4b5b6a;--esn-shadow:0 6px 20px rgba(27, 58, 87, 0.12);--radius-lg:16px;--radius-md:12px;--container:1100px;--anchor-offset:96px}*{box-sizing:border-box}body{margin:0;font-family:Lato,"Helvetica Neue",Arial,sans-serif;color:var(--esn-dark-blue);background:var(--esn-gray-50);line-height:1.6}html{scroll-padding-top:var(--anchor-offset)}.hero[id],section[id]{scroll-margin-top:var(--anchor-offset)}h1,h2,h3,h4{font-family:"Kelson Sans","Avenir Next","Segoe UI",Arial,sans-serif;margin:0 0 .6rem;line-height:1.2}p{margin:0 0 1rem;color:var(--esn-gray-700)}a{color:inherit;text-decoration:none}.container{width:min(100% - 2rem,var(--container));margin:0 auto}.section{padding:3.5rem 0}.section-title{font-size:clamp(1.6rem, 2.3vw, 2.3rem)}.card{background:var(--esn-white);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--esn-shadow);border:1px solid var(--esn-gray-100)}.chip-row{display:flex;flex-wrap:wrap;gap:.6rem}.chip{padding:.5rem .9rem;border-radius:999px;background:var(--esn-white);border:1px solid var(--esn-gray-200);font-size:.9rem;font-weight:600}.btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1rem}.agenda-controls{margin-bottom:1rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:.7rem 1.2rem;border-radius:var(--radius-md);font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease;box-shadow:none}.icon-button{gap:.4rem;padding:.3rem 1.5rem;min-width:44px}.icon-calendar{width:22px;height:22px;stroke:var(--esn-dark-blue);stroke-width:1.6;fill:none}.skip-link{position:absolute;top:-100px;left:1rem;padding:.6rem 1rem;background:var(--esn-cyan);color:var(--esn-white);font-weight:600;border-radius:var(--radius-md);z-index:1000;transition:top .2s ease}.skip-link:focus{top:1rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.btn:focus-visible,.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--esn-cyan);color:var(--esn-white)}.btn-secondary{background:var(--esn-white);border-color:var(--esn-gray-200);color:var(--esn-dark-blue)}.btn-disabled{opacity:.7;cursor:not-allowed}header{width:100%;position:sticky;top:0;z-index:1000;background:var(--esn-white)}.nav{position:relative;width:100%;background:var(--esn-white);border-bottom:1px solid var(--esn-gray-100)}.nav.nav-hidden{transform:none!important}.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:.8rem 0;gap:1rem}.brand{display:flex;align-items:center;gap:.8rem;font-weight:700;min-height:44px}.logo-wrap{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;background:var(--esn-white);padding:6px;border:1px solid var(--esn-gray-200)}.logo-img{width:100%;height:100%;object-fit:contain;display:block}.nav-toggle{min-height:44px;min-width:44px;border-radius:12px;border:1px solid var(--esn-gray-200);background:var(--esn-white);font-weight:700;display:grid;place-items:center;padding:0}.hamburger{display:grid;gap:4px}.hamburger .bar{width:20px;height:2px;background:var(--esn-dark-blue);border-radius:999px}.nav-links{display:none;flex-direction:column;gap:.6rem;padding:.6rem 0 1rem}.nav-links a{min-height:44px;display:flex;align-items:center;padding:0 .6rem;border-radius:12px}.nav-links a:focus-visible,.nav-links a:hover{background:var(--esn-gray-50)}.nav-links.is-open{display:flex}.hero{background:linear-gradient(120deg,rgba(0,163,224,.15),rgba(236,0,140,.08)),url("background_hero_picture.png");background-size:cover;background-position:center;padding:4.5rem 0 3.5rem}.hero-card{max-width:680px;background:rgba(255,255,255,.5);backdrop-filter:blur(10px)}.hero-title{font-size:clamp(2rem, 5vw, 3rem)}.hero-subtitle{font-size:1.1rem}.grid{display:grid;gap:1.4rem}details{border-radius:var(--radius-md);border:1px solid var(--esn-gray-200);background:var(--esn-white);padding:.8rem 1rem}details+details{margin-top:.8rem}summary{list-style:none;cursor:pointer;font-weight:600;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:1rem}summary::-webkit-details-marker{display:none}summary::after{content:"+";font-size:1.2rem;color:var(--esn-cyan)}details[open] summary::after{content:"–"}.accordion-content{padding:.6rem 0 .2rem;color:var(--esn-gray-700)}.agenda-days{display:grid;gap:1rem;margin-top:1.5rem}.agenda-day-group{background:var(--esn-white);border-radius:var(--radius-lg);border:1px solid var(--esn-gray-100);box-shadow:var(--esn-shadow);overflow:hidden}.agenda-day-group-body{padding:0 1.25rem 1.2rem}.agenda-day-group-title{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.25rem;font-weight:700;cursor:pointer;border-bottom:1px solid var(--esn-gray-200)}.agenda-day-group-title::-webkit-details-marker{display:none}.agenda-day-group[open] .agenda-day-group-title{box-shadow:inset 0 -1px 0 var(--esn-gray-200)}.agenda-day-count{display:inline-flex;align-items:center;padding:.25rem .6rem;border-radius:999px;background:rgba(27,58,87,.08);font-size:.85rem;color:var(--esn-gray-700);white-space:nowrap}.agenda-accent-cyan .agenda-day-group-title{border-left:6px solid var(--esn-cyan);background:linear-gradient(90deg,rgba(0,163,224,.12),rgba(0,163,224,.03))}.agenda-accent-orange .agenda-day-group-title{border-left:6px solid var(--esn-orange);background:linear-gradient(90deg,rgba(247,148,29,.15),rgba(247,148,29,.04))}.agenda-accent-magenta .agenda-day-group-title{border-left:6px solid var(--esn-magenta);background:linear-gradient(90deg,rgba(236,0,140,.12),rgba(236,0,140,.03))}.agenda-accent-green .agenda-day-group-title{border-left:6px solid var(--esn-green);background:linear-gradient(90deg,rgba(122,193,67,.15),rgba(122,193,67,.04))}.agenda-list{list-style:none;margin:0;padding:0;display:grid;gap:.8rem}.agenda-list-item{display:grid;grid-template-columns:92px 1fr;gap:.85rem;align-items:start;padding:.85rem 0;border-bottom:1px solid var(--esn-gray-100)}.agenda-list-item:last-child{border-bottom:0;padding-bottom:0}.agenda-item-time{display:inline-flex;align-items:center;justify-content:center;width:fit-content;padding:.3rem .6rem;border-radius:999px;font-weight:700;color:var(--esn-cyan);background:rgba(0,163,224,.12);border:1px solid rgba(0,163,224,.22);white-space:nowrap}.agenda-item-body{display:grid;gap:.25rem}.agenda-item-title{font-weight:700;color:var(--esn-dark-blue)}.agenda-item-description{color:var(--esn-gray-700);font-size:.95rem}.agenda-grid{display:grid;gap:.8rem;margin-top:.6rem}.agenda-calendar{display:none;gap:1rem;margin-top:1.5rem;grid-template-columns:repeat(5,minmax(0,1fr))}.agenda-day{background:var(--esn-white);border-radius:var(--radius-lg);border:1px solid var(--esn-gray-100);box-shadow:var(--esn-shadow);padding:1rem;display:grid;gap:.7rem}.agenda-day-title{text-align:center;font-weight:700;padding:.6rem .8rem;border-radius:12px;background:rgba(247,148,29,.2);border:1px solid rgba(247,148,29,.35)}.agenda-event{text-align:center;font-weight:600;padding:.6rem .7rem;border-radius:10px;background:var(--esn-gray-50);border:1px solid var(--esn-gray-200);display:grid;gap:.2rem}.agenda-event .event-time{font-size:.85rem;font-weight:400;color:var(--esn-gray-700)}.event-tall{min-height:140px;display:grid;align-content:center}.event-cyan{border-left:4px solid var(--esn-cyan)}.event-magenta{border-left:4px solid var(--esn-magenta)}.event-green{border-left:4px solid var(--esn-green)}.event-orange{border-left:4px solid var(--esn-orange)}.event-blue{border-left:4px solid var(--esn-dark-blue)}.agenda-accordion{display:block}.time-block{display:grid;grid-template-columns:88px 1fr;gap:.8rem;align-items:start;padding:.9rem 1rem;border-radius:var(--radius-md);background:var(--esn-gray-50);border:1px solid var(--esn-gray-200)}.time-block .time{font-weight:700;color:var(--esn-dark-blue);font-size:.95rem}.time-block .session{color:var(--esn-dark-blue);font-weight:600}.time-block .meta{font-size:.9rem;color:var(--esn-gray-700)}.block-cyan{border-left:6px solid var(--esn-cyan)}.block-magenta{border-left:6px solid var(--esn-magenta)}.block-green{border-left:6px solid var(--esn-green)}.block-orange{border-left:6px solid var(--esn-orange)}@media (max-width:640px){.agenda-day-group-title{gap:.75rem;padding:.9rem 1rem}.agenda-day-count{font-size:.8rem;padding:.2rem .5rem}.agenda-list-item{grid-template-columns:1fr;gap:.35rem}.agenda-item-time{font-size:.95rem}}.card-header{display:flex;align-items:center;gap:.8rem;font-weight:700}.color-dot{width:12px;height:12px;border-radius:50%}.dot-cyan{background:var(--esn-cyan)}.dot-magenta{background:var(--esn-magenta)}.dot-green{background:var(--esn-green)}.dot-orange{background:var(--esn-orange)}.place-category{display:inline-block;font-size:.8rem;font-weight:600;color:var(--esn-cyan);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.4rem}.place-category:empty{display:none}.section-intro{margin-bottom:1.5rem;max-width:600px}.doc-card a{display:inline-flex;align-items:center;gap:.4rem;min-height:44px;padding:.4rem 0;color:var(--esn-cyan);font-weight:600}.map-embed{border-radius:var(--radius-md);border:1px dashed var(--esn-gray-200);background:var(--esn-gray-50);padding:.8rem}.map-embed iframe{width:100%;height:220px;border:0;border-radius:12px;background:var(--esn-white)}.map-note{margin:.7rem 0 0;font-size:.9rem;color:var(--esn-gray-700)}.map-note span{font-weight:700}.campus-map{margin-top:1rem}.campus-map-body{padding:.6rem 0 .2rem}.campus-map img{width:100%;height:auto;border-radius:var(--radius-md);border:1px solid var(--esn-gray-200);display:block}.sponsor-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}.sponsor-heading{margin:1.2rem 0 .6rem}.social-heading{margin:1.2rem 0 .6rem}.contact-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1.2rem}.contact-item{display:flex;align-items:flex-start;gap:1rem}.contact-avatar{flex-shrink:0;width:56px;height:56px;border-radius:50%;overflow:hidden;background:var(--esn-gray-100);display:grid;place-items:center}.contact-avatar-img{width:100%;height:100%;object-fit:cover}.contact-avatar-placeholder{font-size:1.4rem;font-weight:700;color:var(--esn-cyan)}.contact-details{display:flex;flex-direction:column;gap:.2rem;flex:1;min-width:0}.contact-group{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--esn-cyan)}.contact-name{font-weight:700;color:var(--esn-dark-blue)}.contact-email,.contact-phone{display:block;font-size:.95rem;color:var(--esn-gray-700)}.contact-email a,.contact-phone a{color:var(--esn-cyan);font-weight:500}.contact-email a:hover,.contact-phone a:hover{text-decoration:underline}.social-link{display:inline-flex;align-items:center;gap:.65rem;color:var(--esn-cyan);font-weight:600}.social-link:hover{text-decoration:underline}.social-icon{width:1.1rem;height:1.1rem;flex-shrink:0}.sponsor-logo{border:1px dashed var(--esn-gray-200);border-radius:var(--radius-md);min-height:64px;display:grid;place-items:center;color:var(--esn-gray-700);background:var(--esn-gray-50);font-size:.9rem;text-align:center;padding:.4rem}.sponsor-logo img{max-width:100%;max-height:56px;width:auto;height:auto;object-fit:contain}.sponsor-logo.sponsor-link{text-decoration:none;transition:border-color .2s ease,box-shadow .2s ease}.sponsor-logo.sponsor-link:hover{border-color:var(--esn-cyan);box-shadow:0 2px 8px rgba(0,163,224,.2)}@media (min-width:768px){.sponsor-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}.footer{background:var(--esn-dark-blue);color:var(--esn-white);padding:2.5rem 0}.footer p{color:rgba(255,255,255,.7)}@media (min-width:768px){:root{--anchor-offset:84px}.nav-toggle{display:none}.nav-links{display:flex;flex-direction:row;padding:0}.hero-card{padding:2.5rem}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.agenda-grid{gap:1rem}}@media (min-width:1024px){.agenda-calendar{display:none}}@media (min-width:1024px){.section{padding:4.5rem 0}.hero{padding:5.5rem 0 4.5rem}}