/* === ReadFy Level Up Modal Styles === */

:root {
    --level-up-bg: #2d3748;
    --level-up-text-primary: #ffffff;
    --level-up-text-secondary: #a0aec0;
    --level-up-accent-gold: #f59e0b;
    --level-up-border-radius: 16px;
    --level-up-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

.level-up-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 24, 38, 0.85);
    backdrop-filter: blur(8px);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    animation: fadeInBackdrop 0.4s ease forwards;
}

.level-up-modal {
    background: var(--level-up-bg);
    color: var(--level-up-text-primary);
    border-radius: var(--level-up-border-radius);
    width: 90%;
    max-width: 420px;
    text-align: center;
    padding: 2.5rem 2rem;
    box-shadow: var(--level-up-shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    opacity: 0;
    animation: popInModal 0.5s cubic-bezier(0.25, 1, 0.5, 1) 0.2s forwards;
}

.level-up-badge {
    width: 100px;
    height: 100px;
    background: linear-gradient(145deg, var(--level-up-accent-gold), #ffc107);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    border: 4px solid var(--level-up-bg);
    box-shadow: 0 0 0 4px var(--level-up-accent-gold);
}

.level-up-badge .level-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.level-up-badge .level-text {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.level-up-modal h2 {
    font-size: 2rem;
    font-weight: 800;
    margin: 0 0 0.5rem 0;
}

.level-up-modal .level-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--level-up-accent-gold);
    margin-bottom: 1rem;
}

.level-up-modal .congrats-message {
    font-size: 1rem;
    color: var(--level-up-text-secondary);
    margin-bottom: 2rem;
}

.level-up-modal .btn-close-levelup {
    background: var(--level-up-accent-gold);
    color: var(--level-up-bg);
    width: 100%;
    padding: 0.9rem;
    font-size: 1.1rem;
    font-weight: 700;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.level-up-modal .btn-close-levelup:hover {
    background-color: #ffc107;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(245, 158, 11, 0.3);
}


/* Keyframe animations from completion-modal for consistency */
@keyframes fadeInBackdrop {
    to { opacity: 1; }
}

@keyframes popInModal {
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}