:root{--brand-primary: #131416;--brand-primary-hover: #2a2d31;--brand-blue: #3e3fff;--brand-blue-light: #6679ff;--brand-green: #b9ff49;--brand-green-dark: #6da80f;--brand-blue-soft: #d6d6fc;--brand-green-soft: #ecfacd;--brand-blue-focus: rgb(62 63 255 / 15%)}.header{position:fixed;top:var(--size-5);left:var(--size-5);right:var(--size-5);z-index:100;display:flex;justify-content:space-between;align-items:center;pointer-events:none}@media(max-width: 768px){.header{top:var(--size-3);left:var(--size-3);right:var(--size-3)}}.header__logo-card{display:flex;align-items:center;padding:var(--size-3) var(--size-5);background:#fff;border-radius:var(--radius-round);box-shadow:var(--shadow-3);pointer-events:auto}.header__logo-card a{display:flex;align-items:center}.header__logo-card img{width:80px;height:auto}@media(max-width: 768px){.header__logo-card{padding:var(--size-2) var(--size-3)}.header__logo-card img{width:64px}}.header__right{display:flex;align-items:center;gap:var(--size-3);pointer-events:auto}.header__link-card{font-size:14px;font-weight:var(--font-weight-4);text-decoration:none;color:var(--gray-9);padding:var(--size-3) var(--size-5);background:#fff;border-radius:var(--radius-round);box-shadow:var(--shadow-3);transition:transform .15s var(--ease-2),opacity .15s var(--ease-2);display:flex;align-items:center;line-height:1;white-space:nowrap}.header__link-card:hover{transform:scale(1.05);opacity:.8}.header__link-card--active{background:var(--gray-2)}@media(max-width: 768px){.header__link-card{display:none}}.footer{position:fixed;right:var(--size-5);top:50%;transform:translateY(-50%);z-index:100}@media(max-width: 768px){.footer{right:var(--size-3)}}.footer__card{display:flex;flex-direction:column;gap:var(--size-2);padding:var(--size-3) var(--size-2);background:#fff;border-radius:var(--radius-round);box-shadow:var(--shadow-3)}.footer__link{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-round);color:var(--gray-9);text-decoration:none;transition:transform .15s var(--ease-2),opacity .15s var(--ease-2)}.footer__link img,.footer__link svg{width:20px;height:20px;display:block}.footer__link:hover{transform:scale(1.1);opacity:.6}@media(max-width: 768px){.footer__link{width:36px;height:36px}}.user-menu{position:relative;display:none;align-items:center}.user-menu--visible{display:flex}.user-menu__trigger{width:40px;height:40px;border-radius:50%;background:#fff;box-shadow:var(--shadow-4);border:none;cursor:pointer;padding:0;overflow:hidden;margin:0 var(--size-3) 0 var(--size-2);transition:transform .15s var(--ease-2),opacity .15s var(--ease-2)}.user-menu__trigger:hover{transform:scale(1.05);opacity:.8}.user-menu__trigger:focus-visible{outline:2px solid var(--brand-primary);outline-offset:2px}.user-menu__avatar{width:100%;height:100%;display:block;border-radius:50%}.user-menu__dropdown{position:absolute;top:calc(100% + var(--size-2));right:0;min-width:200px;background-color:#fff;border-radius:var(--radius-3);box-shadow:var(--shadow-3);padding:var(--size-3) var(--size-5);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .15s var(--ease-2),transform .15s var(--ease-2),visibility .15s var(--ease-2);z-index:101}.user-menu--open .user-menu__dropdown{opacity:1;visibility:visible;transform:translateY(0)}.user-menu__item{padding:var(--size-1) var(--size-2)}.user-menu__email{display:block;font-size:16px;color:var(--gray-9);font-weight:var(--font-weight-5)}.user-menu__limits{display:block;font-size:14px;color:var(--gray-6)}.user-menu__divider{height:1px;background-color:var(--gray-3);margin:var(--size-2) 0}.user-menu__logout{width:100%;padding:var(--size-2);border:none;border-radius:4px;background-color:rgba(0,0,0,0);color:var(--gray-7);font-size:16px;font-family:"Geologica","Helvetica","Arial",sans-serif;cursor:pointer;text-align:left;transition:background-color .15s var(--ease-2);display:flex;align-items:center;gap:var(--size-2)}.user-menu__logout:hover{background-color:var(--gray-2)}html{background-color:#fff}body{font-family:"Geologica","Helvetica","Arial",sans-serif;color:var(--gray-9);line-height:var(--font-lineheight-2)}.page-container{min-height:100vh;position:relative}.knowledge{padding:calc(80px + var(--size-7)) var(--size-5) var(--size-7);max-width:1280px;margin:0 auto}.knowledge__grid{column-count:3;column-gap:var(--size-5)}@media(max-width: 1024px){.knowledge__grid{column-count:2}}@media(max-width: 768px){.knowledge__grid{column-count:1}}@media(max-width: 768px){.knowledge{padding:calc(48px + var(--size-7)) var(--size-3) var(--size-5)}}.knowledge-card{position:relative;border-radius:var(--radius-3);padding:var(--size-7);cursor:grab;user-select:none;will-change:transform;transform:translate(0, 0);break-inside:avoid;display:inline-block;width:100%;margin-bottom:var(--size-5)}.knowledge-card--dragging{cursor:grabbing;z-index:200}.knowledge-card__heading{font-size:24px;font-weight:var(--font-weight-5);margin:0 0 var(--size-3);color:var(--gray-9);line-height:var(--font-lineheight-0)}.knowledge-card__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--size-2)}.knowledge-card__list li{font-size:14px;line-height:var(--font-lineheight-2)}.knowledge-card__list a{display:inline-flex;align-items:center;gap:var(--size-2);color:inherit;text-decoration:none;transition:opacity .15s var(--ease-2)}.knowledge-card__list a:hover{opacity:.7;text-decoration:underline}.knowledge-card[data-card-index="0"]{background:var(--brand-blue-soft)}.knowledge-card[data-card-index="1"]{background:var(--brand-green-soft)}.knowledge-card[data-card-index="2"]{background:var(--brand-blue-soft)}.knowledge-card[data-card-index="3"]{background:var(--brand-green-soft)}.knowledge-card__favicon{width:16px;height:16px;flex-shrink:0;border-radius:4px;background:var(--gray-1);object-fit:contain}