.header{position:fixed;top:1.5rem;left:50%;transform:translate(-50%);z-index:1000;width:calc(100% - 4rem);max-width:1400px;background:#ffffffb3;backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid rgba(255,255,255,.4);border-radius:24px;transition:all .5s cubic-bezier(.34,1.56,.64,1);box-shadow:0 10px 40px #00000014,0 0 0 1px #2563eb1a,inset 0 1px #fffc;animation:headerFloat .8s cubic-bezier(.34,1.56,.64,1);padding:.75rem 1.5rem}@keyframes headerFloat{0%{transform:translate(-50%) translateY(-100px);opacity:0}to{transform:translate(-50%) translateY(0);opacity:1}}.header--scrolled{top:1rem;background:#ffffffd9;backdrop-filter:blur(30px) saturate(180%);-webkit-backdrop-filter:blur(30px) saturate(180%);box-shadow:0 15px 50px #0000001f,0 0 0 1px #2563eb33,inset 0 1px #fff;padding:.875rem 1.75rem}[data-theme=dark] .header{background:#0f172ab3;border:1px solid rgba(255,255,255,.1);box-shadow:0 10px 40px #0006,0 0 0 1px #2563eb4d}[data-theme=dark] .header--scrolled{background:#0f172ad9}.header__container{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:2rem}@media(max-width:1024px){.header__container{gap:1rem}}.header__left{display:flex;align-items:center;gap:1rem}.header__logo{height:36px;display:flex;align-items:center;transition:all .4s cubic-bezier(.34,1.56,.64,1);position:relative}@media(min-width:769px){.header__logo{height:42px}}.header__logo-img{height:100%;filter:drop-shadow(0 2px 8px rgba(37,99,235,.2));transition:all .4s ease}.header__logo:hover{transform:translateY(-2px)}.header__logo:hover .header__logo-img{filter:drop-shadow(0 4px 12px rgba(37,99,235,.35))}.header__nav{display:flex;justify-content:center;align-items:center}.header__links{display:flex;gap:.5rem;list-style:none;margin:0;padding:.5rem;background:#ffffff80;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:16px;border:1px solid rgba(255,255,255,.8);box-shadow:0 4px 16px #0000000a,inset 0 1px #fff}[data-theme=dark] .header__links{background:#1e293b80;border:1px solid rgba(255,255,255,.1)}.header__link{color:#64748b;text-decoration:none;font-size:.9rem;font-weight:600;transition:all .3s cubic-bezier(.34,1.56,.64,1);padding:.625rem 1.25rem;border-radius:12px;position:relative;white-space:nowrap}.header__link:hover,.header__link.active{color:#2563eb;background:#2563eb1a;transform:translateY(-1px)}.header__link.active{background:#2563eb1f;color:#1d4ed8;box-shadow:0 2px 8px #2563eb33}[data-theme=dark] .header__link{color:#94a3b8}[data-theme=dark] .header__link:hover,[data-theme=dark] .header__link.active{color:#93c5fd;background:#2563eb33}.header__right{display:flex;align-items:center;gap:1rem;justify-content:flex-end}.header__language{position:relative;cursor:pointer}.header__lang-btn{background:#fff9;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.8);border-radius:12px;padding:.625rem 1rem;color:#64748b;font-size:.8125rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.34,1.56,.64,1);white-space:nowrap;display:flex;align-items:center;gap:.5rem;box-shadow:0 2px 8px #0000000a,inset 0 1px #fff}[data-theme=dark] .header__lang-btn{background:#1e293b99;border:1px solid rgba(255,255,255,.1);color:#94a3b8}.header__lang-btn:hover{background:#fffc;border-color:#2563eb4d;color:#2563eb}[data-theme=dark] .header__lang-btn:hover{background:#1e293bcc;color:#93c5fd}.lang-icon{flex-shrink:0}.dropdown-arrow{flex-shrink:0;transition:transform .3s ease}.dropdown-arrow.open{transform:rotate(180deg)}.header__lang-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:#fffffff2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.8);border-radius:12px;padding:.5rem;box-shadow:0 10px 40px #00000026;display:none;flex-direction:column;gap:.25rem;min-width:140px;z-index:1000}.header__lang-dropdown.active{display:flex}[data-theme=dark] .header__lang-dropdown{background:#0f172af2;border:1px solid rgba(255,255,255,.1)}.header__lang-option{background:transparent;border:none;padding:.625rem 1rem;border-radius:8px;color:#64748b;font-size:.8125rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.34,1.56,.64,1);white-space:nowrap;display:flex;align-items:center;gap:.75rem;text-align:left}[data-theme=dark] .header__lang-option{color:#94a3b8}.header__lang-option:hover{background:#2563eb1a;color:#2563eb}[data-theme=dark] .header__lang-option:hover{background:#2563eb33;color:#93c5fd}.header__lang-option.active{background:linear-gradient(135deg,#2563eb,#3b82f6);color:#fff;box-shadow:0 2px 8px #2563eb4d}.lang-short{font-weight:700;min-width:24px}.lang-full{font-weight:500;flex:1}.header__auth,.header__user{display:flex;align-items:center;gap:.5rem}.header__btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.5rem;border-radius:12px;font-size:.875rem;font-weight:600;text-decoration:none;transition:all .3s cubic-bezier(.34,1.56,.64,1);white-space:nowrap;border:none;cursor:pointer}.header__btn-icon{flex-shrink:0;width:16px;height:16px;transition:transform .3s ease}[dir=rtl] .header__btn-icon{transform:scaleX(-1)}.header__btn:hover .header__btn-icon{transform:translate(2px)}[dir=rtl] .header__btn:hover .header__btn-icon{transform:scaleX(-1) translate(2px)}.header__btn--login{color:#fff;background:linear-gradient(135deg,#2563eb,#3b82f6);border:1px solid rgba(37,99,235,.3);box-shadow:0 2px 8px #2563eb40,0 1px 3px #2563eb26;position:relative;overflow:hidden}.header__btn--login:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#fff3,#fff0);opacity:0;transition:opacity .3s ease}.header__btn--login:hover{background:linear-gradient(135deg,#1d4ed8,#2563eb);transform:translateY(-2px);box-shadow:0 4px 16px #2563eb59,0 2px 8px #2563eb40}.header__btn--login:hover:before{opacity:1}.header__btn--login:active{transform:translateY(0)}.header__btn--login:visited{color:#e0e7ff}.header__btn--dashboard{color:#2563eb;background:#2563eb1a;border:1px solid rgba(37,99,235,.2)}.header__btn--dashboard:hover{background:#2563eb26;transform:translateY(-2px);box-shadow:0 4px 12px #2563eb33}.header__btn--logout{color:#ef4444;background:#ef44441a;border:1px solid rgba(239,68,68,.2)}.header__btn--logout:hover{background:#ef444426;transform:translateY(-2px);box-shadow:0 4px 12px #ef444433}[data-theme=dark] .header__btn--login{color:#fff;background:linear-gradient(135deg,#1e40af,#2563eb);border:1px solid rgba(37,99,235,.4);box-shadow:0 2px 8px #2563eb4d,0 1px 3px #2563eb33}[data-theme=dark] .header__btn--login:hover{background:linear-gradient(135deg,#1e3a8a,#1e40af);box-shadow:0 4px 16px #2563eb66,0 2px 8px #2563eb4d}.header__menu-toggle{display:none;width:32px;height:32px;flex-direction:column;justify-content:center;gap:5px;background:#fff9;border:1px solid rgba(255,255,255,.8);border-radius:10px;cursor:pointer;padding:6px;transition:all .3s ease;flex-shrink:0}[data-theme=dark] .header__menu-toggle{background:#1e293b99;border:1px solid rgba(255,255,255,.1)}.header__menu-toggle:hover{background:#fffc;border-color:#2563eb4d}[data-theme=dark] .header__menu-toggle:hover{background:#1e293bcc}.header__menu-toggle span{width:100%;height:2px;background:#0f172a;border-radius:2px;transition:all .3s cubic-bezier(.34,1.56,.64,1)}[data-theme=dark] .header__menu-toggle span{background:#f1f5f9}.header--menu-open .header__menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}.header--menu-open .header__menu-toggle span:nth-child(2){opacity:0;transform:translate(-20px)}.header--menu-open .header__menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}@media(max-width:1024px){.header{width:calc(100% - 2rem);top:1rem}.header__container{grid-template-columns:auto 1fr auto}.header__right{gap:.75rem}}@media(max-width:768px){.header{width:calc(100% - 2rem);padding:.75rem 1rem}.header--scrolled{padding:.75rem 1rem}.header__container{grid-template-columns:auto 1fr auto;gap:.75rem}.header__left{gap:.75rem}.header__menu-toggle{display:flex}.header__logo{height:32px}.header__nav{position:absolute;top:calc(100% + 1rem);left:0;right:0;grid-column:1 / -1}.header__links{display:none;flex-direction:column;gap:.25rem;padding:1rem;background:#fffffff2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.8);border-radius:20px;box-shadow:0 10px 40px #00000026}.header__links.active{display:flex}.header__link{width:100%;text-align:center;padding:.875rem 1.5rem}.header__right{gap:.5rem}.header__lang-btn{padding:.5rem .75rem;font-size:.75rem}.lang-icon{width:14px;height:14px}.dropdown-arrow{width:10px;height:10px}.header__btn{padding:.5rem 1rem;font-size:.8125rem}.header__btn-icon{width:14px;height:14px}.header__user{flex-direction:column;gap:.25rem}[data-theme=dark] .header__links{background:#0f172af2;border:1px solid rgba(255,255,255,.1)}}[dir=rtl] .header__container{direction:rtl}[dir=rtl] .header__links,[dir=rtl] .header__right,[dir=rtl] .header__language,[dir=rtl] .header__user{flex-direction:row-reverse}@media(max-width:768px){[dir=rtl] .header__links,[dir=rtl] .header__user{flex-direction:column}}