:root{--color-bg:#fff;--color-surface:#fff;--color-border:#e2e3e7;--color-border-strong:#cbd0d8;--color-text:#111418;--color-text-muted:#5b626d;--color-text-subtle:#7a818c;--color-accent:#07294d;--color-placeholder:#e9ecf1;--color-drexel-blue:#07294d;--color-drexel-gold:#ffc600;--radius-sm:4px;--radius-md:8px;--header-height:64px;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif}:root[data-theme=dark]{--color-bg:#1f2329;--color-surface:#262b32;--color-border:#2d3139;--color-border-strong:#3d4249;--color-text:#e8eaed;--color-text-muted:#9aa0a6;--color-text-subtle:#80868b;--color-accent:#4a90d9;--color-placeholder:#2d3139}*,:before,:after{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-sans), sans-serif;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.4}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.app{flex-direction:column;min-height:100vh;display:flex}.app-main{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:24px 0 32px}.site-header{border-bottom:3px solid var(--color-drexel-gold);background:var(--color-drexel-blue);z-index:10;position:sticky;top:0}.site-header__inner{max-width:1280px;height:var(--header-height);justify-content:space-between;align-items:center;gap:24px;margin:0 auto;padding:0 24px;display:flex}.site-header__brand{color:#fff;align-items:center;gap:10px;font-size:17px;font-weight:600;display:inline-flex}.site-header__logo{object-fit:contain;width:96px;height:96px;display:block}.site-header__nav{align-items:center;gap:28px;display:flex}.site-header__nav-link{color:#ffffffb8;border-bottom:2px solid #0000;padding:6px 0;font-size:15px;transition:color .12s,border-color .12s}.site-header__nav-link:hover{color:#fff}.site-header__nav-link.active{color:#fff;border-bottom-color:var(--color-drexel-gold)}.events-page__status{text-align:center;color:var(--color-text-muted);padding:48px 0;font-size:15px}.events-page__status--error{color:#b3261e}.event-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;display:grid}.event-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;flex-direction:column;transition:border-color .12s,box-shadow .12s,transform .12s;display:flex;overflow:hidden}.event-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #1114182e}.event-card:focus-visible{outline:2px solid var(--color-drexel-blue);outline-offset:2px}.event-card__media{aspect-ratio:4/3;background:var(--color-placeholder);border-bottom:2px solid var(--color-border);position:relative;overflow:hidden}.event-card__perks{flex-wrap:wrap;gap:4px;margin:0;padding:0;list-style:none;display:flex;position:absolute;top:8px;left:8px;right:8px}.event-card__perk{color:#fff;border-radius:var(--radius-sm);background:#ca8a04;border:1px solid #a16207;padding:3px 8px;font-size:12px;font-weight:600}:root[data-theme=dark] .event-card__perk{color:#fff;background:#a16207;border-color:#854d0e}.event-card__perk--virtual{color:#fff;background:#2563eb;border-color:#1d4ed8}.event-card__perk--hybrid{color:#fff;background:#7c3aed;border-color:#6d28d9}.event-card__perk--live{color:#fff;background:#dc2626;border-color:#b91c1c;align-items:center;gap:5px;display:inline-flex}.event-card__perk-live-dot{background:#fff;border-radius:50%;flex-shrink:0;width:6px;height:6px;animation:1.4s ease-in-out infinite live-pulse}@keyframes live-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.75)}}:root[data-theme=dark] .event-card__perk--virtual{background:#1d4ed8;border-color:#1e40af}:root[data-theme=dark] .event-card__perk--hybrid{background:#6d28d9;border-color:#5b21b6}:root[data-theme=dark] .event-card__perk--live{background:#b91c1c;border-color:#991b1b}.event-card__image{object-fit:cover;width:100%;height:100%}.event-card__image-placeholder{background:linear-gradient(135deg, transparent calc(50% - .5px), var(--color-border-strong) calc(50% - .5px), var(--color-border-strong) calc(50% + .5px), transparent calc(50% + .5px)), linear-gradient(45deg, transparent calc(50% - .5px), var(--color-border-strong) calc(50% - .5px), var(--color-border-strong) calc(50% + .5px), transparent calc(50% + .5px)), var(--color-placeholder);width:100%;height:100%}.event-card__body{flex-direction:column;flex:1;gap:4px;padding:10px 12px 12px;display:flex}.event-card__time{letter-spacing:.04em;text-transform:uppercase;color:var(--color-drexel-blue);align-items:center;gap:6px;margin:0;font-size:12px;font-weight:600;display:flex}.event-card__title{color:var(--color-text);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:15px;font-weight:600;line-height:1.3;display:-webkit-box;overflow:hidden}.event-card__location{color:var(--color-text-muted);align-items:flex-start;gap:2px;margin:0;font-size:14px;display:flex}.event-card__icon{color:inherit;flex-shrink:0}.event-card__host{color:var(--color-text-subtle);margin:4px 0 0;font-size:13px}.events-page{flex-direction:column;gap:24px;display:flex}.filter-bar{background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);flex-wrap:wrap;align-items:center;gap:8px;padding:12px;display:flex}.filter-bar__search{border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-bg);flex:1;align-items:center;gap:8px;min-width:200px;padding:6px 10px;transition:border-color .12s,box-shadow .12s;display:flex}.filter-bar__search:focus-within{border-color:var(--color-drexel-blue);box-shadow:0 0 0 2px #07294d1f}:root[data-theme=dark] .filter-bar__search:focus-within{border-color:var(--color-drexel-gold);box-shadow:0 0 0 2px #ffc6002e}.filter-bar__search-icon{color:var(--color-text-subtle);flex-shrink:0}.filter-bar__search-input{min-width:0;color:var(--color-text);font:inherit;background:0 0;border:none;outline:none;flex:1;padding:2px 0;font-size:14px}.filter-bar__search-input::placeholder{color:var(--color-text-subtle)}.filter-bar__search-input::-webkit-search-decoration{appearance:none}.filter-bar__search-input::-webkit-search-cancel-button{appearance:none}.filter-bar__search-clear{width:20px;height:20px;color:var(--color-text-subtle);cursor:pointer;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:background .12s,color .12s;display:inline-flex}.filter-bar__search-clear:hover{background:var(--color-placeholder);color:var(--color-text)}.filter-bar__clear-btn{border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-surface);width:32px;height:32px;color:var(--color-text-subtle);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:background .12s,border-color .12s,color .12s;display:inline-flex}.filter-bar__clear-btn:hover:not(:disabled){color:#fff;background:#b3261e;border-color:#b3261e}.filter-bar__clear-btn:disabled{opacity:.4;cursor:not-allowed}:root[data-theme=dark] .filter-bar__clear-btn:hover:not(:disabled){color:#fff;background:#d32f2f;border-color:#d32f2f}.filter-dropdown{position:relative}.filter-dropdown__btn{border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);cursor:pointer;align-items:center;gap:8px;padding:7px 12px;font-size:14px;font-weight:500;transition:background .12s,border-color .12s,color .12s;display:inline-flex}.filter-dropdown__btn:hover{border-color:var(--color-drexel-blue)}.filter-dropdown__btn--active{background:var(--color-drexel-blue);color:#fff;border-color:var(--color-drexel-blue)}.filter-dropdown__btn--open{border-color:var(--color-drexel-blue)}.filter-dropdown__chevron{transition:transform .12s}.filter-dropdown__btn--open .filter-dropdown__chevron{transform:rotate(180deg)}.filter-dropdown__panel{z-index:20;background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);flex-direction:column;min-width:200px;max-height:320px;display:flex;position:absolute;top:calc(100% + 6px);left:0;overflow:hidden;box-shadow:0 8px 24px #1114181f}:root[data-theme=dark] .filter-dropdown__panel{box-shadow:0 8px 24px #0006}.filter-dropdown__options{flex:1;margin:0;padding:4px 0;list-style:none;overflow-y:auto}.filter-dropdown__option{width:100%;color:var(--color-text);font:inherit;text-align:left;cursor:pointer;background:0 0;border:none;align-items:center;gap:8px;padding:8px 12px;font-size:14px;display:flex}.filter-dropdown__option:hover{background:var(--color-placeholder)}.filter-dropdown__option--selected{color:var(--color-drexel-blue);font-weight:600}:root[data-theme=dark] .filter-dropdown__option--selected{color:var(--color-drexel-gold)}.filter-dropdown__option--default{border-bottom:1px solid var(--color-border)}.filter-dropdown__input{width:14px;height:14px;accent-color:var(--color-drexel-blue);cursor:pointer;flex-shrink:0;margin:0}.filter-dropdown__empty{color:var(--color-text-subtle);padding:8px 12px;font-size:13px}.filter-dropdown__footer{border-top:1px solid var(--color-border);background:var(--color-bg);padding:8px}.filter-dropdown__apply{border-radius:var(--radius-sm);background:var(--color-drexel-blue);color:#fff;cursor:pointer;border:none;width:100%;padding:7px 12px;font-size:13px;font-weight:600;transition:background .12s}.filter-dropdown__apply:hover{background:#051b34}:root[data-theme=dark] .filter-dropdown__apply{background:var(--color-accent)}:root[data-theme=dark] .filter-dropdown__apply:hover{background:#3d7bb8}.pagination{justify-content:center;align-items:center;gap:16px;display:flex}.pagination__btn{border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);cursor:pointer;padding:8px 20px;font-size:14px;font-weight:500;transition:background .12s,border-color .12s}.pagination__btn:hover:not(:disabled){background:var(--color-drexel-blue);color:#fff;border-color:var(--color-drexel-blue)}.pagination__btn:disabled{opacity:.4;cursor:not-allowed}.pagination__info{color:var(--color-text-muted);text-align:center;min-width:100px;font-size:14px}.about-page{max-width:960px;margin:0 auto}.about-page__title{color:var(--color-drexel-blue);margin:0 0 12px;font-size:28px;font-weight:600}.about-page__body{color:var(--color-text-muted);margin:0 0 8px;font-size:16px;line-height:1.6}.about-page__section{margin-top:22px}.about-page__row{gap:32px;margin-top:22px;display:flex}.about-page__row .about-page__section{flex:1;margin-top:0}.about-page__section-title{color:var(--color-text);margin:0 0 12px;font-size:18px;font-weight:600}.about-page__feature-list{color:var(--color-text-muted);flex-direction:column;gap:6px;margin:0;padding-left:20px;font-size:15px;line-height:1.55;display:flex}.about-page__source-list{flex-flow:wrap;gap:20px;margin:12px 0 0;padding:0;list-style:none;display:flex}.about-page__source-item{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);flex:1;min-width:180px;padding:14px 16px}.about-page__source-name{color:var(--color-drexel-blue);font-size:15px;font-weight:600;text-decoration:none;transition:color .12s}.about-page__source-name:hover{text-decoration:underline}.about-page__source-desc{color:var(--color-text-muted);margin:6px 0 0;font-size:14px;line-height:1.55}.theme-toggle{border-radius:var(--radius-sm);color:#ffffffb8;cursor:pointer;background:0 0;border:1px solid #ffffff4d;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;padding:0;transition:background .12s,color .12s,border-color .12s;display:flex}.theme-toggle:hover{color:#fff;border-color:var(--color-drexel-gold);background:#ffffff1f}:root[data-theme=dark] .site-header{background:var(--color-surface);border-bottom-color:var(--color-drexel-gold)}:root[data-theme=dark] .site-header__brand{color:var(--color-text)}:root[data-theme=dark] .site-header__nav-link{color:var(--color-text-muted)}:root[data-theme=dark] .site-header__nav-link:hover{color:var(--color-text)}:root[data-theme=dark] .site-header__nav-link.active{color:var(--color-text);border-bottom-color:var(--color-drexel-gold)}:root[data-theme=dark] .theme-toggle{border-color:var(--color-border-strong);color:var(--color-text-muted)}:root[data-theme=dark] .theme-toggle:hover{background:var(--color-placeholder);color:var(--color-text);border-color:var(--color-drexel-gold)}:root[data-theme=dark] .event-card{border:1px solid var(--color-border)}:root[data-theme=dark] .event-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #ffffff1f}:root[data-theme=dark] .event-card__media{border-bottom-color:var(--color-border)}:root[data-theme=dark] .event-card__time,:root[data-theme=dark] .about-page__title{color:var(--color-drexel-gold)}:root[data-theme=dark] .about-page__source-item{border-color:var(--color-border);background:var(--color-surface)}:root[data-theme=dark] .about-page__source-name{color:var(--color-drexel-gold)}:root[data-theme=dark] .pagination__btn:hover:not(:disabled){background:var(--color-accent);color:#fff;border-color:var(--color-accent)}@media (width<=640px){.site-header__inner{padding:0 16px}.app-main{padding:24px 16px 48px}.site-header__nav{gap:18px}}.chatbot-fab{z-index:30;background:var(--color-drexel-blue);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;transition:transform .12s,box-shadow .12s,background .12s;display:inline-flex;position:fixed;bottom:24px;right:24px;box-shadow:0 6px 18px #07294d52}.chatbot-fab:hover{background:#051b34;transform:translateY(-1px);box-shadow:0 10px 22px #07294d5c}.chatbot-fab:focus-visible{outline:2px solid var(--color-drexel-gold);outline-offset:3px}:root[data-theme=dark] .chatbot-fab{background:var(--color-accent);box-shadow:0 6px 18px #00000080}:root[data-theme=dark] .chatbot-fab:hover{background:#3d7bb8}.chatbot-panel{z-index:30;background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);flex-direction:column;width:380px;max-width:calc(100vw - 32px);height:560px;max-height:calc(100vh - 120px);animation:.14s ease-out chatbot-pop;display:flex;position:fixed;bottom:96px;right:24px;overflow:hidden;box-shadow:0 16px 40px #11141838}:root[data-theme=dark] .chatbot-panel{box-shadow:0 16px 40px #0000008c}@keyframes chatbot-pop{0%{opacity:0;transform:translateY(8px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.chatbot-panel__header{background:var(--color-drexel-blue);color:#fff;border-bottom:2px solid var(--color-drexel-gold);justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;display:flex}:root[data-theme=dark] .chatbot-panel__header{background:var(--color-accent)}.chatbot-panel__title{align-items:center;gap:8px;font-size:15px;font-weight:600;display:inline-flex}.chatbot-panel__title-dot{background:var(--color-drexel-gold);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 3px #ffc60040}.chatbot-panel__header-actions{align-items:center;gap:4px;display:inline-flex}.chatbot-panel__icon-btn{border-radius:var(--radius-sm);color:#ffffffd9;cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;width:28px;height:28px;padding:0;transition:background .12s,color .12s;display:inline-flex}.chatbot-panel__icon-btn:hover{color:#fff;background:#ffffff24}.chatbot-panel__messages{background:var(--color-bg);flex-direction:column;flex:1;gap:10px;padding:14px;display:flex;overflow-y:auto}.chatbot-empty{text-align:center;color:var(--color-text-muted);margin:auto 0;padding:24px 12px}.chatbot-empty__title{color:var(--color-text);margin:0 0 6px;font-size:15px;font-weight:600}.chatbot-empty__body{margin:0;font-size:13px;line-height:1.5}.chatbot-quick-replies{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:16px;display:flex}.chatbot-quick-reply{border:1px solid var(--color-border,#d1d5db);color:var(--color-text);cursor:pointer;text-align:left;background:0 0;border-radius:999px;padding:6px 12px;font-size:12px;line-height:1.4;transition:background .15s,border-color .15s,color .15s}.chatbot-quick-reply:hover:not(:disabled){background:var(--color-accent,#2563eb);border-color:var(--color-accent,#2563eb);color:#fff}.chatbot-quick-reply:disabled{opacity:.45;cursor:not-allowed}:root[data-theme=dark] .chatbot-quick-reply{border-color:var(--color-border,#374151);color:var(--color-text)}:root[data-theme=dark] .chatbot-quick-reply:hover:not(:disabled){background:var(--color-accent,#3b82f6);border-color:var(--color-accent,#3b82f6);color:#fff}.chatbot-message{width:100%;display:flex}.chatbot-message--user{justify-content:flex-end}.chatbot-message--assistant{justify-content:flex-start}.chatbot-message__bubble{word-wrap:break-word;overflow-wrap:anywhere;border-radius:14px;max-width:85%;padding:8px 12px;font-size:14px;line-height:1.45}.chatbot-message--user .chatbot-message__bubble{background:var(--color-drexel-blue);color:#fff;border-bottom-right-radius:4px}:root[data-theme=dark] .chatbot-message--user .chatbot-message__bubble{background:var(--color-accent)}.chatbot-message--assistant .chatbot-message__bubble{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border);border-bottom-left-radius:4px}.chatbot-message__bubble--typing{padding:10px 14px}.chatbot-typing{align-items:center;gap:4px;display:inline-flex}.chatbot-typing span{background:var(--color-text-subtle);border-radius:50%;width:6px;height:6px;animation:1s ease-in-out infinite chatbot-typing}.chatbot-typing span:nth-child(2){animation-delay:.15s}.chatbot-typing span:nth-child(3){animation-delay:.3s}@keyframes chatbot-typing{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}.chatbot-error{color:#b3261e;border-radius:var(--radius-sm);text-align:center;background:#b3261e14;border:1px solid #b3261e4d;align-self:center;max-width:90%;padding:8px 12px;font-size:13px}:root[data-theme=dark] .chatbot-error{color:#f28b82;background:#f28b821a;border-color:#f28b8259}.chatbot-markdown>:first-child{margin-top:0}.chatbot-markdown>:last-child{margin-bottom:0}.chatbot-markdown p{margin:0 0 8px}.chatbot-markdown ul,.chatbot-markdown ol{margin:0 0 8px;padding-left:20px}.chatbot-markdown li{margin-bottom:2px}.chatbot-markdown a{color:var(--color-drexel-blue);text-decoration:underline}:root[data-theme=dark] .chatbot-markdown a{color:var(--color-drexel-gold)}.chatbot-markdown code{background:var(--color-placeholder);border-radius:3px;padding:1px 5px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12.5px}.chatbot-markdown pre{background:var(--color-placeholder);border-radius:var(--radius-sm);margin:0 0 8px;padding:10px;overflow-x:auto}.chatbot-markdown pre code{background:0 0;padding:0}.chatbot-markdown h1,.chatbot-markdown h2,.chatbot-markdown h3,.chatbot-markdown h4{margin:8px 0 4px;font-size:14.5px;line-height:1.3}.chatbot-markdown blockquote{border-left:3px solid var(--color-border-strong);color:var(--color-text-muted);margin:0 0 8px;padding:4px 10px}.chatbot-panel__composer{border-top:1px solid var(--color-border);background:var(--color-surface);flex-direction:column;gap:6px;padding:10px 12px 12px;display:flex}.chatbot-panel__input{resize:none;border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-bg);width:100%;min-height:38px;max-height:120px;color:var(--color-text);font:inherit;outline:none;padding:8px 10px;font-size:14px;line-height:1.4;transition:border-color .12s,box-shadow .12s}.chatbot-panel__input:focus{border-color:var(--color-drexel-blue);box-shadow:0 0 0 2px #07294d1f}:root[data-theme=dark] .chatbot-panel__input:focus{border-color:var(--color-drexel-gold);box-shadow:0 0 0 2px #ffc6002e}.chatbot-panel__input:disabled{opacity:.7;cursor:not-allowed}.chatbot-panel__composer-footer{justify-content:space-between;align-items:center;gap:8px;min-height:28px;display:flex}.chatbot-panel__counter{color:var(--color-text-subtle);font-size:11px}.chatbot-panel__counter--over{color:#b3261e;font-weight:600}:root[data-theme=dark] .chatbot-panel__counter--over{color:#f28b82}.chatbot-panel__send{background:var(--color-drexel-blue);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;padding:0;transition:background .12s,opacity .12s;display:inline-flex}.chatbot-panel__send:hover:not(:disabled){background:#051b34}.chatbot-panel__send:disabled{opacity:.4;cursor:not-allowed}:root[data-theme=dark] .chatbot-panel__send{background:var(--color-accent)}:root[data-theme=dark] .chatbot-panel__send:hover:not(:disabled){background:#3d7bb8}@media (width<=640px){.chatbot-panel{width:auto;height:calc(100vh - 120px);bottom:84px;left:12px;right:12px}.chatbot-fab{bottom:16px;right:16px}}