.kk-header{position:fixed;inset-inline:0;top:0;z-index:40;background:radial-gradient(circle at top,#111827 0,#020617 55%,#020617 100%);border-bottom:1px solid rgba(24,24,27,0.85);box-shadow:0 18px 45px rgba(0,0,0,0.9);backdrop-filter:blur(16px)}.kk-header__inner{height:var(--nav-height);display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.kk-header__brand{display:flex;align-items:center;gap:var(--space-3)}.kk-header__brand-mark{width:2.4rem;height:2.4rem;border-radius:999px;border:1px solid rgba(234,179,8,0.9);background:radial-gradient(circle at 30% 0,#d97706 0,rgba(217,119,6,0.1) 40%,rgba(0,0,0,0.95) 100%);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,0.75)}.kk-header__brand-initial{font-family:var(--font-display);font-size:1.15rem;letter-spacing:0.16em;text-transform:uppercase;color:var(--color-text)}.kk-header__brand-text{display:flex;flex-direction:column;gap:0.1rem}.kk-header__brand-title{font-family:var(--font-display);letter-spacing:0.2em;text-transform:uppercase;font-size:0.9rem;color:var(--color-gray-100)}.kk-header__brand-subtitle{font-size:0.7rem;letter-spacing:0.22em;text-transform:uppercase;color:var(--color-text-muted)}.kk-nav{display:flex;align-items:center;justify-content:flex-end}.kk-nav__list{display:flex;align-items:center;gap:var(--space-6)}.kk-nav__link{position:relative;font-size:0.78rem;letter-spacing:0.18em;text-transform:uppercase;color:var(--color-text-muted);padding-block:0.15rem}.kk-nav__link::after{content:"";position:absolute;left:0;right:0;bottom:-0.3rem;height:1px;background:linear-gradient(90deg,transparent,rgba(234,179,8,0.9),transparent);opacity:0;transform:scaleX(0.6);transform-origin:center;transition:opacity var(--transition-base),transform var(--transition-base)}.kk-nav__link:hover{color:var(--color-text)}.kk-nav__link:hover::after{opacity:1;transform:scaleX(1)}.kk-nav__item--accent .kk-nav__link{color:#fff;background:radial-gradient(circle at 10% 0,#d97706 0,#451a03 42%,#020617 100%);border-radius:999px;padding:0.55rem 1.4rem;border:1px solid rgba(234,179,8,0.9);box-shadow:0 18px 52px rgba(0,0,0,0.95)}.kk-nav__item--accent .kk-nav__link::after{display:none}.kk-nav__item--accent .kk-nav__link:hover{background:radial-gradient(circle at 10% 0,#fbbf24 0,#92400e 46%,#020617 100%)}.kk-nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:2.4rem;height:2.4rem;border-radius:999px;border:1px solid rgba(63,63,70,0.9);background:radial-gradient(circle at 10% 0,#18181b 0,#020617 55%,#020617 100%);box-shadow:0 10px 28px rgba(0,0,0,0.9)}.kk-nav-toggle__bar{width:16px;height:1.5px;border-radius:999px;background:var(--color-gray-200);transition:transform var(--transition-base),opacity var(--transition-base)}@media (max-width:960px){.kk-nav{position:fixed;inset-inline:0;top:var(--nav-height);background:radial-gradient(circle at top,#020617 0,#020617 60%,#020617 100%);border-bottom:1px solid rgba(39,39,42,0.95);box-shadow:0 22px 60px rgba(0,0,0,0.98);transform:translateY(-120%);opacity:0;visibility:hidden;transition:transform var(--transition-base),opacity var(--transition-base),visibility var(--transition-base)}.kk-nav--open{transform:translateY(0);opacity:1;visibility:visible}.kk-nav__list{flex-direction:column;align-items:flex-start;padding:var(--space-6) var(--space-4);gap:var(--space-4)}.kk-nav__item--accent .kk-nav__link{width:100%;justify-content:center;text-align:center}.kk-nav-toggle{display:flex}.kk-header__inner{gap:var(--space-3)}}.kk-nav-toggle--active .kk-nav-toggle__bar:nth-child(1){transform:translateY(6.5px) rotate(45deg)}.kk-nav-toggle--active .kk-nav-toggle__bar:nth-child(2){opacity:0}.kk-nav-toggle--active .kk-nav-toggle__bar:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}.kk-nav-toggle:focus-visible,.kk-nav__link:focus-visible,.kk-header__brand:focus-visible{outline:none;box-shadow:var(--shadow-focus);border-color:rgba(234,179,8,0.95)}