[v-cloak] { display: none; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f5f5f7;
    color: #1d1d1f;
    -webkit-tap-highlight-color: transparent;
    padding-bottom: 90px; /* space for bottom nav */
}
.app-container {
    max-width: 700px;
    margin: 0 auto;
}
.card-apple {
    background: #ffffff;
    border-radius: 2rem;
    border: 1px solid #d2d2d7;
    box-shadow: 0 4px 24px rgba(0,0,0,0.02);
    padding: 2.5rem;
}
.text-muted-apple {
    color: #86868b !important;
}
.btn-apple {
    background-color: #007aff;
    color: #ffffff;
    border-radius: 50rem;
    font-weight: 500;
    padding: 0.85rem 2.5rem;
    transition: all 0.2s ease;
    border: none;
}
.btn-apple:hover {
    background-color: #0062cc;
    color: #ffffff;
}
.btn-apple:active {
    transform: scale(0.96);
}
/* Animations */
.fade-in {
    animation: fadeIn 0.4s ease forwards;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.tracking-tight { letter-spacing: -0.04em; }
.tracking-widest { letter-spacing: 0.1em; }

/* Bottom Nav */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid #d2d2d7;
    z-index: 1030;
    padding-bottom: env(safe-area-inset-bottom);
}
.nav-item {
    color: #86868b;
    cursor: pointer;
    transition: color 0.2s;
    text-align: center;
    flex: 1;
    padding: 0.85rem 0;
}
.nav-item.active {
    color: #007aff;
}
.nav-item i {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 2px;
}
.nav-item span {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
/* Quiz Elements */
.quiz-option {
    border: 1px solid #d2d2d7;
    border-radius: 1.25rem;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    background: white;
    width: 100%;
    margin-bottom: 1rem;
    font-weight: 500;
    color: #1d1d1f;
    font-size: 1.1rem;
}
.quiz-option:hover {
    border-color: #86868b;
}
.quiz-option.selected.incorrect {
    background: #fff0f0;
    border-color: #ff3b30;
    color: #ff3b30;
}
.quiz-option.correct {
    background: #007aff;
    border-color: #007aff;
    color: white;
}
.quiz-option:disabled {
    opacity: 0.5;
    cursor: default;
}
.quiz-option.correct:disabled {
    opacity: 1;
}