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var(--ease-spring)}.mobile-nav-link:hover{background:rgba(37,99,235,.08);border-color:rgba(37,99,235,.2);transform:translateX(-4px)}.mobile-nav-link:active{transform:translateX(-2px) scale(.98)}.mobile-nav-link-active{background:linear-gradient(135deg,rgba(37,99,235,.15),rgba(14,165,233,.12));border-color:rgba(37,99,235,.3);color:var(--color-primary-dark);box-shadow:var(--shadow-sm)}.mobile-nav-link-active:before{transform:scaleY(1)}.mobile-nav-link-text{position:relative;z-index:1}.mobile-nav-indicator{font-size:1.5rem;color:var(--color-primary);animation:pulse 2s var(--ease-in-out) infinite}.mobile-account-section{margin-top:auto;padding:1.5rem;border-top:2px solid var(--color-border);background:linear-gradient(135deg,rgba(37,99,235,.05),rgba(16,185,129,.05))}.mobile-account-info{display:flex;align-items:center;gap:.875rem;margin-bottom:1rem;padding:1rem;background:var(--glass);border-radius:var(--radius-lg);border:1px solid var(--color-border)}.mobile-account-name{display:block;font-family:var(--font-display);font-size:var(--font-size-base);color:var(--color-text)}.mobile-account-email{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0}.mobile-logout-btn{width:100%;justify-content:center}@media (max-width:900px){.app-header{padding:.75rem 1rem;margin:var(--spacing-sm) auto;width:calc(100% - 1rem)}.header-nav{display:none}.mobile-menu-btn{display:flex}.app-main{padding:var(--spacing-lg)}.brand-title{font-size:var(--font-size-base)}.brand-kicker{font-size:.625rem}.brand-mark{width:36px;height:36px;font-size:1.25rem}}@media (max-width:640px){.app-header{gap:.75rem;padding:.625rem .875rem}.header-actions{gap:.5rem}.xp-chip{padding:.3rem .6rem;font-size:.75rem}.avatar-button{padding:.3rem .4rem;gap:.4rem}.avatar-circle{width:34px;height:34px;font-size:.875rem}.account-copy{display:none}.btn-ghost{padding:.625rem 1rem;font-size:var(--font-size-sm)}.app-main{padding:var(--spacing-md)}.brand-kicker{display:none}.brand-title{font-size:.9375rem}.brand-mark{width:32px;height:32px;font-size:1.125rem}.admin-layout,.auth-grid,.card-grid,.hero-grid,.mock-layout,.mock-summary-grid,.practice-builder-grid,.practice-grid,.practice-hero,.practice-meta-grid{grid-template-columns:1fr}.mock-header{gap:.85rem}.mock-header h1{font-size:clamp(1.75rem,8vw,2.3rem);margin-top:.55rem}.timer-band{width:100%;display:grid;grid-template-columns:minmax(0,1fr)}.timer-tile{min-width:0;padding:.85rem .95rem}.mock-sidebar{position:static;display:flex;gap:.65rem;max-height:none;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;padding:.95rem 1.15rem;scroll-padding-inline:1.15rem;scrollbar-width:none;scroll-snap-type:x proximity}.mock-sidebar::-webkit-scrollbar{display:none}.mock-nav-item{flex:0 0 auto;width:auto;min-width:6.4rem;padding:.72rem .8rem;scroll-snap-align:start}.mock-nav-item strong{font-size:.82rem;white-space:nowrap}.mock-stage{width:100%}.mock-question-body{font-size:.97rem;line-height:1.6}.mock-option{padding:.78rem .82rem;gap:.7rem}.mock-option-letter{width:1.85rem;height:1.85rem}.admin-sidebar{position:static}.toast-stack{top:.5rem;right:.5rem;width:calc(100vw - 1rem)}}@media (max-width:380px){.app-header{padding:.5rem .625rem}.brand{gap:.5rem}.brand-mark{width:28px;height:28px;font-size:1rem}.brand-title{font-size:.875rem}.xp-chip{font-size:.6875rem;padding:.25rem .5rem}.avatar-circle{width:30px;height:30px}.mobile-menu-btn{width:40px;height:40px}.menu-icon-bar{width:20px;height:2.5px}}