/* =========================================
   LAYOUT
   ========================================= */
.quizzer-layout {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.quiz-container {
    width: 100%;
    max-width: 650px;
}

/* =========================================
   CODE
   ========================================= */
code {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    color: #81d4fa;
    font-size: 0.95em;
}

/* =========================================
   COMPONENTS
   ========================================= */
.header-row {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #333;
    padding-bottom: 15px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #a0a0b0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#question-text {
    font-size: 20px;
    margin-bottom: 25px;
    line-height: 1.4;
    color: #fff;
    font-weight: 400;
}

#answers-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.answer-btn {
    background: #23232e;
    color: #e0e0e0;
    border: 1px solid #3d3d4f;
    padding: 15px 20px;
    border-radius: 6px;
    text-align: left;
    font-family: inherit;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, transform 0.2s, color 0.2s;
    line-height: 1.3;
}

.answer-btn:hover:not(:disabled) {
    background: #2a2a38;
    border-color: #4fc3f7;
    transform: translateY(-2px);
}

.answer-btn:disabled {
    cursor: default;
}

.answer-btn.correct {
    background: rgba(76, 175, 80, 0.15);
    border-color: #4caf50;
    color: #81c784;
}

.answer-btn.wrong {
    background: rgba(244, 67, 54, 0.15);
    border-color: #f44336;
    color: #e57373;
}

.progress-bar-container {
    width: 100%;
    background: #2a2a38;
    height: 6px;
    border-radius: 3px;
    margin-bottom: 25px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: #4fc3f7;
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.timer-bar-container {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    height: 4px;
    border-radius: 2px;
    overflow: hidden;
}

.timer-bar-fill {
    height: 100%;
    background: #81c784;
    width: 100%;
    transform-origin: left;
}

/* =========================================
   ANIMATIONS
   ========================================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-active {
    animation: fadeInUp 0.4s ease-out forwards;
}

/* =========================================
   UTILITIES
   ========================================= */
.d-none {
    display: none;
}

.quiz-nav {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.quiz-menu-box {
    text-align: center;
    margin-bottom: 20px;
}

.panel-title.borderless {
    border: none;
}

.quiz-menu-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 15px;
}

.text-muted {
    color: var(--text-muted);
}

.action-buttons-container {
    flex-direction: column;
    gap: 15px;
    margin-top: 25px;
}

.action-buttons-row {
    display: flex;
    gap: 15px;
}

.result-box {
    text-align: center;
}

.result-perc {
    color: #a0a0b0;
}

.result-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 25px;
}