/* ============================================
   QUIZ TAB STYLES
   ============================================ */

/* ---------- STAGE CONTAINER ---------- */
.quiz-stage-container {
    position: relative;
    width: 100%;
    height: auto;
    min-height: 100%;
    /* min-height: calc(100svh - var(--top-bar-height) - 5rem); */
    overflow: hidden;
}

/* ---------- INDIVIDUAL STAGES ---------- */
.quiz-stage {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: fit-content;
    min-height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    background-color: var(--bg-primary);
    will-change: transform, opacity;
    -webkit-overflow-scrolling: touch;
}

.quiz-stage.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
    z-index: 2;
}

.quiz-stage.exiting {
    opacity: 0;
    transform: scale(0.9);
    z-index: 1;
}

/* ---------- STAGE CONTENT ---------- */
.stage-content {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    padding-bottom: 32px;
}

.stage-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.2;
}

.stage-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.4;
}

/* ---------- BREADCRUMBS ---------- */
.stage-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.breadcrumb-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--accent-color);
    font-size: 0.85rem;
    font-weight: 500;
    font-family: 'Poppins', sans-serif;
    padding: 6px 10px;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.breadcrumb-btn:hover {
    background-color: var(--bg-hover);
    color: var(--accent-hover);
}

.breadcrumb-btn .material-icons-round {
    font-size: 1.625rem;    pointer-events: none;
}

.breadcrumb-text {
    pointer-events: none;
}

.breadcrumb-separator {
    font-size: 1.625rem;    color: var(--text-tertiary);
    flex-shrink: 0;
}

.breadcrumb-current {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 6px 10px;
    background-color: var(--bg-surface);
    border-radius: 6px;
}

/* ---------- STAGE 1: EDUCATION LEVEL BUTTONS ---------- */
.education-level-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.education-level-btn {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    border-radius: 16px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: 'Poppins', sans-serif;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.education-level-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* SSCE Button - Material Red */
.ssce-btn {
    background: linear-gradient(135deg, #d32f2f 0%, #b71c1c 100%);
    color: #ffffff;
}


/* University Button - Material Blue */
.university-btn {
    background: linear-gradient(135deg, #1976d2 0%, #0d47a1 100%);
    color: #ffffff;
}

.education-level-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    min-width: 64px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    flex-shrink: 0;
}

.education-level-icon .material-icons-round {
    font-size: 2.5rem;    color: #ffffff;
}

.education-level-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: left;
}

.education-level-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #ffffff;
}

.education-level-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
}

.education-level-arrow {
    font-size: 2rem;    color: rgba(255, 255, 255, 0.7);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.education-level-btn:hover .education-level-arrow {
    transform: translateX(4px);
}

/* ---------- SUBJECTS GRID (SSCE) ---------- */
.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    width: 100%;
}

.subject-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--bg-surface);
    border: 1px solid var(--divider-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

.subject-card:hover {
    background: var(--bg-hover);
    border-color: var(--border-color);
}

.subject-card:active {
    transform: scale(0.96);
}

.subject-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: .3rem;
    flex-shrink: 0;
}

.subject-card-icon .material-icons-round {
    font-size: 2.25rem;    color: #ffffff;
}

.subject-card-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.subject-card-count {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ---------- UNIVERSITIES LIST ---------- */
.universities-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.university-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-surface);
    border: 1px solid var(--divider-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.university-card:hover {
    background: var(--bg-hover);
    border-color: var(--border-color);
}


.university-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 8px;
    background: var(--accent-light);
    flex-shrink: 0;
}

.university-card-icon .material-icons-round {
    font-size: 2rem;    color: var(--accent-color);
}

.university-card-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.university-card-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.university-card-location {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.university-card-levels {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.university-card-arrow {
    font-size: 1.75rem;    color: var(--text-tertiary);
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.university-card:hover .university-card-arrow {
    color: var(--accent-color);
}

/* ---------- LEVELS GRID ---------- */
.levels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    width: 100%;
}

.level-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--bg-surface);
    border: 1px solid var(--divider-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

.level-card:hover {
    background: var(--bg-hover);
}

.level-card-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.level-card-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ---------- COURSES LIST ---------- */
.courses-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    width: 100%;
}

.course-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: transparent;
    border-bottom: 1px solid var(--divider-color);
    border-radius: .7rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.course-card:hover {
    background: var(--bg-surface);
}

.course-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 8px;
    flex-shrink: 0;
}

.course-card-icon .material-icons-round {
    font-size: 2rem;    color: #ffffff;
}

.course-card-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.course-card-code {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
}

.course-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.course-card-quiz-count {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.course-card-arrow {
    font-size: 1.75rem;    color: var(--text-tertiary);
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.course-card:hover .course-card-arrow {
    color: var(--accent-color);
}

/* ---------- QUIZ TILES LIST ---------- */
.quiz-tiles-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    width: 100%;
}

.quiz-tile {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--divider-color);
    gap: 16px;
    padding: 16px;
    border-radius: .7rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.quiz-tile:hover {
    background: var(--bg-hover);
    border-color: var(--border-color);
}


.quiz-tile-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 8px;
    flex-shrink: 0;
}

.quiz-tile-icon .material-icons-round {
    font-size: 1.3rem;    color: #ffffff;
}

.quiz-tile-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.quiz-tile-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.quiz-tile-meta {
    display: none;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--text-tertiary);
    flex-wrap: wrap;
}

.quiz-tile-meta .meta-divider {
    width: 3px;
    height: 3px;
    background: var(--text-tertiary);
    border-radius: 50%;
    flex-shrink: 0;
}

.quiz-tile-arrow {
    font-size: 1.75rem;    color: var(--text-tertiary);
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.quiz-tile:hover .quiz-tile-arrow {
    transform: translateX(4px);
    color: var(--accent-color);
}

/* ---------- LOADING STATE ---------- */
.stage-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 48px;
    color: var(--text-secondary);
}

.stage-loading .material-icons-round {
    font-size: 3.5rem;    color: var(--accent-color);
    animation: pulse 1.5s ease infinite;
}

/* ---------- ERROR STATE ---------- */
.stage-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 48px;
    color: var(--text-secondary);
    text-align: center;
}

.stage-error .material-icons-round {
    font-size: 3.5rem;    color: var(--accent-color);
}

.stage-error p {
    color: var(--text-secondary);
}

/* ---------- MOBILE RESPONSIVE ---------- */
@media (max-width: 710px) {
    .quiz-stage {
        padding: 16px .1rem;
    }
    
    .stage-title {
        font-size: 1.4rem;
    }
    
    .stage-subtitle {
        font-size: 0.95rem;
        margin-bottom: 24px;
    }
    
    .education-level-btn {
        padding: 16px;
        gap: 12px;
    }
    
    .education-level-icon {
        width: 48px;
        height: 48px;
        min-width: 48px;
    }
    
    .education-level-icon .material-icons-round {
        font-size: 2.1rem;    }
    
    .education-level-title {
        font-size: 1.3rem;
    }
    
    .education-level-desc {
        font-size: 0.95rem;
    }
    
    .subjects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .subject-card {
        padding: 16px;
    }
    
    .subject-card-icon {
        width: 44px;
        height: 44px;
    }
    
    .subject-card-icon .material-icons-round {
        font-size: 1.875rem;    }
    
    .subject-card-name {
        font-size: 1.05rem;
    }
    
    .levels-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    
    .level-card {
        padding: 16px;
    }
    
    .level-card-number {
        font-size: 1.5rem;
    }
    
    .university-card,
    .course-card,
    .quiz-tile {
        padding: 12px;
        gap: 12px;
    }
    
    .university-card-icon,
    .course-card-icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
    }
    
    .quiz-tile-icon {
        width: 36px;
        height: 36px;
        min-width: 36px;
    }
    
    .stage-breadcrumbs {
        gap: 4px;
        margin-bottom: 16px;
    }
    
    .breadcrumb-btn {
        font-size: 0.9rem;
        padding: 4px 6px;
    }
    
    .breadcrumb-current {
        font-size: 0.75rem;
        padding: 4px 6px;
    }
}

/* Tablet */
@media (min-width: 711px) and (max-width: 1024px) {
    .subjects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .levels-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}