.header{position:sticky;top:0;z-index:200;height:var(--header-height);background-color:var(--color-surface);border-bottom:1px solid var(--color-border)}.header__inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:var(--space-md)}.header__logo{flex-shrink:0;font-size:1.05rem;font-weight:700;letter-spacing:.1em;color:var(--color-primary)}.header__actions{display:flex;align-items:center;gap:var(--space-lg);min-width:0}.header__nav{display:flex;align-items:center;gap:var(--space-md)}.header__link{flex-shrink:0;font-size:var(--font-size-xs);font-weight:500;color:var(--color-text-sub);white-space:nowrap;transition:color .2s}.header__link:hover,.header__link--active{color:var(--color-primary);font-weight:700}.header__link--cta{display:inline-flex;align-items:center;padding:.5em 1.15em;font-size:var(--font-size-sm);color:var(--color-text-inverse);background-color:var(--color-primary);border-radius:0;font-weight:700;line-height:1;transition:background-color .2s}.header__link--cta:hover{color:var(--color-text-inverse);background-color:var(--color-accent);font-weight:700}.header__nav-item{position:relative;display:flex;align-items:center}.header__nav-item--dropdown:after{content:"";position:absolute;top:100%;left:-8px;right:-8px;height:18px}.header__link--has-arrow{display:inline-flex;align-items:center;gap:.3em}.header__arrow{flex-shrink:0;transition:transform .2s ease}.header__nav-item--dropdown:hover .header__arrow,.header__nav-item--dropdown:focus-within .header__arrow{transform:rotate(180deg)}.header__dropdown{position:absolute;top:calc(100% + 14px);left:50%;transform:translate(-50%) translateY(-6px);min-width:240px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:0 4px 6px -1px #00000012,0 12px 32px -4px #00000021;padding:var(--space-xs);display:grid;gap:2px;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;z-index:300}.header__dropdown:before{content:"";position:absolute;top:-8px;left:50%;transform:translate(-50%) rotate(45deg);width:13px;height:13px;background:var(--color-border);border-radius:2px 0 0;z-index:0}.header__dropdown:after{content:"";position:absolute;top:-6px;left:50%;transform:translate(-50%) rotate(45deg);width:11px;height:11px;background:var(--color-surface);border-radius:2px 0 0;z-index:2}.header__nav-item--dropdown:hover .header__dropdown,.header__nav-item--dropdown:focus-within .header__dropdown{opacity:1;pointer-events:auto;transform:translate(-50%) translateY(0)}.header__dropdown-parent{display:block;padding:.55em .9em;border-radius:var(--radius-sm);font-size:var(--font-size-xs);font-weight:700;color:var(--color-primary);white-space:nowrap;position:relative;z-index:3;transition:background-color .15s}.header__dropdown-parent:hover,.header__dropdown-parent--active{background-color:var(--color-bg-soft)}.header__dropdown-divider{height:1px;background:var(--color-border);margin:var(--space-xs) var(--space-xs)}.header__dropdown-item{display:flex;flex-direction:column;gap:.12em;padding:.5em .9em .5em 1.6em;border-radius:var(--radius-sm);position:relative;z-index:3;transition:background-color .15s}.header__dropdown-item:before{content:"";position:absolute;left:.82em;top:.88em;width:4px;height:4px;border-radius:50%;background:var(--color-border-strong);transition:background-color .15s}.header__dropdown-item:hover,.header__dropdown-item--active{background-color:var(--color-bg-soft)}.header__dropdown-item:hover:before,.header__dropdown-item--active:before{background-color:var(--color-accent)}.header__dropdown-label{font-size:var(--font-size-xs);font-weight:600;color:var(--color-text);white-space:nowrap}.header__dropdown-desc{font-size:.68rem;color:var(--color-text-muted);white-space:nowrap}.header__menu-btn{display:none;align-items:center;justify-content:center;width:40px;height:40px;background:none;border:none;cursor:pointer;padding:8px;flex-shrink:0;margin-left:auto}.header__menu-icon,.header__menu-icon:before,.header__menu-icon:after{display:block;width:22px;height:2px;background-color:var(--color-primary);border-radius:2px;transition:transform .3s cubic-bezier(.25,.46,.45,.94),opacity .2s}.header__menu-icon{position:relative}.header__menu-icon:before,.header__menu-icon:after{content:"";position:absolute;left:0}.header__menu-icon:before{top:-7px}.header__menu-icon:after{top:7px}.header__menu-btn.is-open .header__menu-icon{background-color:transparent}.header__menu-btn.is-open .header__menu-icon:before{transform:translateY(7px) rotate(45deg)}.header__menu-btn.is-open .header__menu-icon:after{transform:translateY(-7px) rotate(-45deg)}.mobile-menu{position:fixed;inset:0;top:var(--header-height);z-index:190;display:flex;flex-direction:column;background-color:var(--color-bg-deep);padding:var(--space-2xl) var(--space-xl) var(--space-3xl);overflow-y:auto;opacity:0;transform:translateY(-6px);pointer-events:none;transition:opacity .28s cubic-bezier(.25,.46,.45,.94),transform .28s cubic-bezier(.25,.46,.45,.94)}.mobile-menu.is-open{opacity:1;transform:none;pointer-events:auto}.mobile-menu__nav{display:flex;flex-direction:column;flex:1}.mobile-menu__link{display:block;padding:var(--space-md) 0;font-size:clamp(1.25rem,5vw,1.6rem);font-weight:700;color:#ffffffb3;border-bottom:1px solid rgba(255,255,255,.08);letter-spacing:.02em;transition:color .2s,padding-left .2s}.mobile-menu__link:hover,.mobile-menu__link--active{color:#fff;padding-left:var(--space-sm)}.mobile-menu__link--active{color:var(--color-accent)}.mobile-menu__accordion{border-bottom:1px solid rgba(255,255,255,.08)}.mobile-menu__accordion-btn{display:flex;align-items:center;justify-content:space-between;width:100%;padding:var(--space-md) 0;font-size:clamp(1.25rem,5vw,1.6rem);font-weight:700;color:#ffffffb3;letter-spacing:.02em;background:none;border:none;cursor:pointer;text-align:left;transition:color .2s}.mobile-menu__accordion-btn:hover,.mobile-menu__accordion-btn.is-open{color:#fff}.mobile-menu__accordion-arrow{flex-shrink:0;transition:transform .25s ease;color:#ffffff80}.mobile-menu__accordion-btn.is-open .mobile-menu__accordion-arrow{transform:rotate(180deg);color:#fffc}.mobile-menu__accordion-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}.mobile-menu__accordion-btn[aria-expanded=true]~.mobile-menu__accordion-body{grid-template-rows:1fr}.mobile-menu__accordion-body>div{overflow:hidden}.mobile-menu__sub-link{display:block;padding:.65em 0 .65em var(--space-md);font-size:var(--font-size-sm);font-weight:500;color:#fff9;transition:color .15s,padding-left .15s}.mobile-menu__sub-link--top{padding-top:.2em;border-top:1px solid rgba(255,255,255,.06)}.mobile-menu__sub-link:last-child{padding-bottom:var(--space-md)}.mobile-menu__sub-link:hover,.mobile-menu__sub-link.mobile-menu__link--active{color:var(--color-accent-soft);padding-left:calc(var(--space-md) + 4px)}.mobile-menu__footer{margin-top:var(--space-2xl);padding-top:var(--space-xl);border-top:1px solid rgba(255,255,255,.1)}.mobile-menu__cta-btn{display:block;width:100%;padding:.9em;font-size:var(--font-size-sm);font-weight:700;letter-spacing:.06em;text-align:center;color:var(--color-bg-deep);background-color:var(--color-accent);border-radius:var(--radius-sm);transition:background-color .2s}.mobile-menu__cta-btn:hover{background-color:var(--color-accent-strong)}.mobile-menu__backdrop{position:fixed;inset:0;top:var(--header-height);z-index:189;background:#0006;opacity:0;pointer-events:none;transition:opacity .28s ease}.mobile-menu__backdrop.is-visible{opacity:1;pointer-events:auto}@media(max-width:900px){.header__actions{gap:var(--space-sm)}}@media(max-width:768px){.header__logo{font-size:.95rem}.header__actions{display:none}.header__menu-btn{display:flex}}.page-header{padding-block:var(--space-2xl);background-color:var(--color-surface)}.page-header__title{font-size:clamp(1.5rem,3vw,1.75rem)}.page-header__description{margin-top:var(--space-sm);color:var(--color-text-muted);line-height:1.8;max-width:42em}