/* Navigation Mode Selector */
.mode-selector {
    position: fixed;
    top: calc(env(safe-area-inset-top) + 20px);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 20;
}

.mode-btn {
    padding: 8px 20px;
    border: none;
    background: transparent;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    font-weight: 500;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.mode-btn:hover {
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.05);
}

.mode-btn.active {
    background: rgba(251, 191, 36, 0.2);
    color: var(--accent-primary);
    border: 1px solid rgba(251, 191, 36, 0.3);
}

/* Assessment View */
.assessment-container {
    padding: 20px;
    padding-top: 100px;
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

.assessment-title {
    font-size: 24px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    margin: 0 0 8px 0;
}

.assessment-subtitle {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    margin: 0 0 30px 0;
}

.assessment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.assessment-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.assessment-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.assessment-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.assessment-icon svg {
    color: rgba(255, 255, 255, 0.7);
}

.assessment-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 6px 0;
}

.assessment-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.4;
    margin: 0;
}

/* Exercises View */
.exercises-container {
    padding: 20px;
    padding-top: 100px;
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

.exercises-title {
    font-size: 24px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    margin: 0 0 8px 0;
}

.exercises-subtitle {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    margin: 0 0 30px 0;
}

.exercises-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.exercise-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.exercise-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateX(4px);
}

.exercise-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.exercise-content {
    flex: 1;
}

.exercise-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 4px 0;
}

.exercise-content p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.exercise-duration {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.05);
    padding: 4px 8px;
    border-radius: 12px;
}

/* Responsive adjustments */
@media (max-width: 375px) {
    .mode-selector {
        gap: 4px;
        padding: 3px;
    }
    
    .mode-btn {
        padding: 6px 14px;
        font-size: 13px;
    }
    
    .assessment-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) {
    .assessment-container,
    .exercises-container {
        padding-top: 100px;
    }
}