/* Premium Apple-Style Modal */

.quiz-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(11, 15, 25, 0.75);
    /* Slate wash over everything */
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 1rem;
}

.quiz-modal-overlay.visible {
    visibility: visible;
    opacity: 1;
}

.quiz-modal-content {
    background: radial-gradient(130% 130% at 50% -20%, rgba(255, 255, 255, 0.08) 0%, rgba(15, 23, 42, 0.9) 100%);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 640px;
    padding: 4rem 3rem;
    position: relative;
    transform: translateY(40px) scale(0.95);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    text-align: center;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.8), inset 0 2px 3px rgba(255, 255, 255, 0.06);
    color: var(--clr-text-main);
}

.quiz-modal-overlay.visible .quiz-modal-content {
    transform: translateY(0) scale(1);
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
    outline: none;
}

.close-modal:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--clr-text-main);
    transform: rotate(90deg);
}

.quiz-modal-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 1.5rem;
    color: var(--clr-text-main);
    line-height: 1.1;
    letter-spacing: -0.04em;
    font-weight: 800;
}

.quiz-modal-subtitle {
    font-size: 1.15rem;
    color: var(--clr-text-muted);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.quiz-modal-content .btn {
    width: 100%;
    max-width: 320px;
    padding: 1.25rem;
    font-size: 1.15rem;
}