.lang-switch{display:flex;align-items:center;gap:var(--space-1);padding:var(--space-1);background:var(--bg-secondary);border-radius:999px;border:1px solid var(--border-subtle);contain:layout style}.lang-switch__btn{padding:var(--space-1) var(--space-2);font-size:.75rem;font-weight:500;color:var(--text-muted);background:transparent;border:none;border-radius:999px;cursor:pointer;transition:all var(--duration-fast) var(--ease-out-expo)}.lang-switch__btn:hover{color:var(--text-secondary)}.lang-switch__btn--active{background:var(--accent-warm);color:var(--bg-primary)}.lang-switch__btn--active:hover{color:var(--bg-primary)}@media (max-width:768px){.lang-switch{margin-top:var(--space-4);align-self:center}}.header{position:sticky;top:0;left:0;right:0;z-index:100;height:var(--header-height);background:transparent;transition:all var(--duration-normal) var(--ease-out-expo)}.header--scrolled{background:oklch(12% .005 280/.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-subtle)}.header__container{display:flex;align-items:center;justify-content:space-between;height:100%;gap:var(--space-8);contain:layout style}.header__logo{position:relative;z-index:110;display:flex;align-items:center;gap:var(--space-2);transition:opacity var(--duration-fast) var(--ease-out-expo)}.header__logo:hover{opacity:.8}.header__logo-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--accent-warm);transition:all var(--duration-fast) var(--ease-out-expo)}.header__logo:hover .header__logo-icon{background:var(--accent-warm);border-color:var(--accent-warm);color:oklch(15% 0 0)}.header__logo-text{font-size:var(--text-base);font-weight:500;color:var(--text-primary)}.header__logo-slash{color:var(--accent-warm)}.header__nav{flex:1;display:flex;justify-content:center}.header__nav-header{display:none}.header__nav-list{display:flex;align-items:center;gap:var(--space-1);list-style:none;padding:var(--space-1);background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);contain:layout style}.header__nav-link{position:relative;display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-size:var(--text-sm);color:var(--text-secondary);border-radius:var(--radius-lg);transition:all var(--duration-fast) var(--ease-out-expo);white-space:nowrap}.header__nav-link:hover{color:var(--text-primary)}.header__nav-link--active{color:var(--text-primary);background:var(--bg-tertiary)}.header__nav-index{font-size:10px;color:var(--text-muted);opacity:0;transform:translateX(-4px);transition:all var(--duration-fast) var(--ease-out-expo)}.header__nav-link--active .header__nav-index,.header__nav-link:hover .header__nav-index{opacity:1;transform:translateX(0)}.header__nav-arrow{display:none}.header__nav-indicator{position:absolute;bottom:2px;left:50%;width:0;height:2px;background:var(--accent-warm);border-radius:1px;transform:translateX(-50%);transition:width var(--duration-fast) var(--ease-out-expo)}.header__nav-link--active .header__nav-indicator{width:20px}.header__nav-auth-mobile,.header__nav-cta{display:none}.header__auth{min-width:80px;min-height:36px;contain:layout style}.header__auth,.header__auth-state{display:flex;align-items:center;gap:var(--space-2)}.header__nav-auth-state{display:flex;flex-direction:column;gap:var(--space-2)}.header__auth-state--logged-in,.header__auth-state--logged-out{display:flex}.header__auth-btn,.header__auth-menu{display:flex;align-items:center;gap:var(--space-2)}.header__auth-btn{padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:500;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);transition:all var(--duration-fast) var(--ease-out-expo)}.header__auth-btn:hover{border-color:var(--accent-warm);background:oklch(75% .12 55/.1)}.header__auth-logout{display:flex;align-items:center;justify-content:center;width:36px;height:36px;font-size:var(--text-sm);color:var(--text-secondary);background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast) var(--ease-out-expo)}.header__auth-logout:hover{color:var(--error);border-color:var(--error)}.header__cta{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-5);font-size:var(--text-sm);font-weight:500;color:var(--text-primary);background:transparent;border:1px solid var(--border-subtle);border-radius:var(--radius-lg);transition:all var(--duration-fast) var(--ease-out-expo);min-width:90px;min-height:36px;contain:layout style}.header__cta:hover{border-color:var(--accent-warm);background:oklch(75% .12 55/.1)}.header__cta-dot{width:6px;height:6px;background:var(--success);border-radius:50%;animation:pulse 2s ease-in-out infinite}.header__mobile-toggle{display:none;position:relative;z-index:110;flex-direction:column;justify-content:center;gap:6px;width:44px;height:44px;padding:12px;background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration-fast) var(--ease-out-expo)}.header__mobile-toggle:hover{border-color:var(--border-hover)}.header__toggle-bar{width:20px;height:2px;background:var(--text-primary);border-radius:1px;transition:all var(--duration-fast) var(--ease-out-expo);transform-origin:center}.header__mobile-toggle--open .header__toggle-bar:first-child{transform:translateY(4px) rotate(45deg)}.header__mobile-toggle--open .header__toggle-bar:last-child{transform:translateY(-4px) rotate(-45deg)}.header__backdrop{position:fixed;inset:0;background:oklch(0 0 0/.6);opacity:0;visibility:hidden;pointer-events:none;transition:opacity var(--duration-normal) var(--ease-out-expo),visibility var(--duration-normal) var(--ease-out-expo);z-index:90}.header__backdrop--visible{opacity:1;visibility:visible;pointer-events:auto}.header__progress{position:absolute;bottom:0;left:0;right:0;height:2px;background:transparent;overflow:hidden}.header--scrolled .header__progress{background:var(--bg-tertiary)}.header__progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent-warm),var(--accent-cool))}@media (max-width:1024px){.header__nav{position:fixed;top:0;left:0;right:0;bottom:0;width:100%;height:100%;height:100dvh;background:var(--bg-primary);padding:var(--space-6);padding-top:calc(var(--header-height) + var(--space-4));display:flex;flex-direction:column;z-index:95;-webkit-overflow-scrolling:touch;overflow-y:auto;opacity:0;visibility:hidden;pointer-events:none;transition:opacity var(--duration-normal) var(--ease-out-expo),visibility var(--duration-normal) var(--ease-out-expo)}.header__nav--open{opacity:1;visibility:visible;pointer-events:auto}.header__nav-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:var(--space-6);margin-bottom:var(--space-4);border-bottom:1px solid var(--border-subtle)}.header__nav-title{font-size:var(--text-xs);color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em}.header__nav-close{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-muted);cursor:pointer;transition:all var(--duration-fast) var(--ease-out-expo)}.header__nav-close:hover{color:var(--text-primary);border-color:var(--border-hover)}.header__nav-list{flex-direction:column;align-items:stretch;background:transparent;border:none;padding:0;gap:var(--space-2);flex:0}.header__nav-item{opacity:0;transform:translateX(20px);transition:all var(--duration-normal) var(--ease-out-expo)}.header__nav--open .header__nav-item{opacity:1;transform:translateX(0);transition-delay:calc(var(--i) * 50ms + .1s)}.header__nav-link{padding:var(--space-4) var(--space-5);font-size:var(--text-base);background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);justify-content:flex-start;pointer-events:auto;position:relative;z-index:1}.header__nav-link:active{transform:scale(.98);background:var(--bg-tertiary)}.header__nav-link--active{border-color:var(--accent-warm);background:oklch(75% .12 55/.08)}.header__nav-index{opacity:1;transform:none;width:24px;color:var(--accent-warm)}.header__nav-text{flex:1;white-space:nowrap}.header__nav-arrow{display:flex;color:var(--text-muted);opacity:0;transform:translateX(-4px);transition:all var(--duration-fast) var(--ease-out-expo)}.header__nav-link--active .header__nav-arrow,.header__nav-link:hover .header__nav-arrow{opacity:1;transform:translateX(0)}.header__nav-indicator{display:none}.header__nav-cta{display:flex;align-items:center;justify-content:center;text-align:center;gap:var(--space-3);padding:var(--space-5);margin-top:var(--space-4);font-size:var(--text-base);font-weight:500;color:oklch(15% 0 0);background:var(--accent-warm);border-radius:var(--radius-lg);opacity:0;transform:translateY(10px);transition:all var(--duration-normal) var(--ease-out-expo);pointer-events:auto}.header__nav--open .header__nav-cta{opacity:1;transform:translateY(0);transition-delay:.3s}.header__nav-cta:active{transform:scale(.98)}.header__nav-cta-dot{width:8px;height:8px;background:oklch(15% 0 0);border-radius:50%;opacity:.5}.header__nav-auth-mobile{display:flex;flex-direction:column;gap:var(--space-2);margin-top:auto;padding-top:var(--space-6);border-top:1px solid var(--border-subtle)}.header__nav-auth-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);font-size:var(--text-base);color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast) var(--ease-out-expo);pointer-events:auto}.header__nav-auth-link:hover{border-color:var(--accent-warm)}.header__nav-auth-link--logout{color:var(--error);border-color:transparent;background:oklch(65% .15 25/.1)}.header__nav-auth-link--logout:hover{border-color:var(--error)}.header__auth,.header__cta{display:none}.header__mobile-toggle{display:flex}}@media (max-width:640px){.header__logo-text{display:none}}.header__container>.lang-switch{margin-right:var(--space-3)}html:not([data-auth]) .header__auth-state--logged-in,html:not([data-auth]) .header__auth-state--logged-out{visibility:hidden;opacity:0;pointer-events:none}html:not([data-auth]) .header__nav-auth-mobile .header__auth-state--logged-in,html:not([data-auth]) .header__nav-auth-mobile .header__auth-state--logged-out{visibility:hidden!important;opacity:0!important;pointer-events:none!important}html[data-auth="0"] .header__auth-state--logged-in,html[data-auth="1"] .header__auth-state--logged-out{display:none}html[data-auth="0"] .header__nav-auth-mobile .header__auth-state--logged-in,html[data-auth="1"] .header__nav-auth-mobile .header__auth-state--logged-out{display:none!important}